Profiles

Keywords
Last Name
Institution

Howard An

TitleProfessor
InstitutionRush University, Rush Medical College
DepartmentOrthopedic Surgery
Address1611 W. Harrison St.
Chicago IL 60612
vCardDownload vCard

    Collapse Overview 
    Collapse overview
    My Scopus ID is 7202277351.
    My NIH COMMONS name is HAN123.


    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
    List All   |   Timeline
    1. Angotti M, Mallow GM, Wong A, Haldeman S, An HS, Samartzis D. COVID-19 and its Impact on Back Pain. Global Spine J. 2021 Sep 26; 21925682211041618. PMID: 34569340.
      View in: PubMed
    2. Nolte MT, Louie PK, Basques BA, Varthi AG, Paul JC, Khanna K, Khurana T, Chaudhri A, Samartzis D, Goldberg EJ, An HS. Patients Undergoing 3-Level-or-Greater Decompression-Only Surgery for Lumbar Spinal Stenosis Have Similar Outcomes to Those Undergoing Single-Level Surgery at 2 Years. Int J Spine Surg. 2021 Sep 22. PMID: 34551931.
      View in: PubMed
    3. Lau KKL, Samartzis D, To NSC, Harada GK, An HS, Wong AYL. Demographic, Surgical, and Radiographic Risk Factors for Symptomatic Adjacent Segment Disease After Lumbar Fusion: A Systematic Review and Meta-Analysis. J Bone Joint Surg Am. 2021 Aug 04; 103(15):1438-1450. PMID: 34166276.
      View in: PubMed
    4. Orías AAE, Sheha E, Zavras A, John P, Fitch AA, An HS, Inoue N, Colman M. CT Osteoabsorptiometry Assessment of Subchondral Bone Density Predicts Intervertebral Implant Subsidence in a Human ACDF Cadaver Model. Global Spine J. 2021 Jul 27; 21925682211034845. PMID: 34313138.
      View in: PubMed
    5. Zavras AG, Sullivan TB, Dandu N, An HS, DeWald CJ, Colman MW. Lumbar Level Significantly Influences Postoperative Global Sagittal Balance Following Pedicle Subtraction Osteotomy. Global Spine J. 2021 Jul 15; 21925682211032563. PMID: 34263668.
      View in: PubMed
    6. Irie TY, Irie T, Espinoza Orías AA, Segami K, Iwasaki N, An HS, Inoue N. Micro-computed tomography analysis of the lumbar pedicle wall. PLoS One. 2021; 16(7):e0253019. PMID: 34237065.
      View in: PubMed
    7. Riew GJ, Lovecchio F, Samartzis D, Louie PK, Germscheid N, An H, Cheung JPY, Chutkan N, Mallow GM, Neva MH, Phillips FM, Sciubba D, El-Sharkawi M, Valacco M, McCarthy MH, Makhni MC, Iyer S. Telemedicine in Spine Surgery: Global Perspectives and Practices. Global Spine J. 2021 Jun 14; 21925682211022311. PMID: 34121482.
      View in: PubMed
    8. Harada GK, Siyaji ZK, Mallow GM, Hornung AL, Hassan F, Basques BA, Mohammed HA, Sayari AJ, Samartzis D, An HS. Artificial intelligence predicts disk re-herniation following lumbar microdiscectomy: development of the "RAD" risk profile. Eur Spine J. 2021 08; 30(8):2167-2175. PMID: 34100112.
      View in: PubMed
    9. Nguyen AQ, Harvey JP, Khanna K, Basques BA, Harada GK, Phillips FM, Singh K, Dewald C, An HS, Colman MW. Reasons for revision following stand-alone anterior lumbar interbody fusion and lateral lumbar interbody fusion. J Neurosurg Spine. 2021 Apr 30; 1-7. PMID: 33930870.
      View in: PubMed
    10. Baker JD, Sayari AJ, Harada GK, Tao Y, Louie PK, Basques BA, Galbusera F, Niemeyer F, Wilke HJ, An HS, Samartzis D. The Modic-endplate-complex phenotype in cervical spine patients: Association with symptoms and outcomes. J Orthop Res. 2021 Mar 22. PMID: 33749924.
      View in: PubMed
    11. Sayari AJ, Harada GK, Basques BA, Louie PK, Gandhi SD, Banks L, Sung AS, Nolte MT, Gosse J, An HS. Duration of Symptoms Does Not Affect Clinical Outcome After Lumbar Arthrodesis. Clin Spine Surg. 2021 03 01; 34(2):E72-E79. PMID: 33633062.
      View in: PubMed
    12. Shafi K, Lovecchio F, Riew GJ, Samartzis D, Louie PK, Germscheid N, An HS, Cheung JPY, Chutkan N, Mallow GM, Neva MH, Phillips FM, Sciubba DM, El-Sharkawi M, Valacco M, McCarthy MH, Makhni MC, Iyer S. Telemedicine in research and training: spine surgeon perspectives and practices worldwide. Eur Spine J. 2021 08; 30(8):2143-2149. PMID: 33481089.
      View in: PubMed
    13. Irie TY, Irie T, Espinoza Orías AA, Segami K, Iwasaki N, An HS, Inoue N. Three-dimensional distribution of CT attenuation in the lumbar spine pedicle wall. Sci Rep. 2021 01 18; 11(1):1709. PMID: 33462307.
      View in: PubMed
    14. Swiatek PR, Weiner JA, Johnson DJ, Louie PK, McCarthy MH, Harada GK, Germscheid N, Cheung JPY, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutkan NB, An HS, Samartzis D. COVID-19 and the rise of virtual medicine in spine surgery: a worldwide study. Eur Spine J. 2021 08; 30(8):2133-2142. PMID: 33452925.
      View in: PubMed
    15. Riew GJ, Lovecchio F, Samartzis D, Bernstein DN, Underwood EY, Louie PK, Germscheid N, An HS, Cheung JPY, Chutkan N, Mallow GM, Neva MH, Phillips FM, Sciubba DM, El-Sharkawi M, Valacco M, McCarthy MH, Iyer S, Makhni MC. Spine surgeon perceptions of the challenges and benefits of telemedicine: an international study. Eur Spine J. 2021 08; 30(8):2124-2132. PMID: 33452924.
      View in: PubMed
    16. Mormol JD, Basques BA, Harada GK, Louie PK, Alter K, Goldberg E, Colman MW, An HS. Risk Factors Associated With Development of Urinary Retention Following Posterior Lumbar Spinal Fusion: Special Attention to the Use of Glycopyrrolate in Anesthesia Reversal. Spine (Phila Pa 1976). 2021 Jan 15; 46(2):E133-E138. PMID: 32890297.
      View in: PubMed
    17. Mallow GM, Siyaji ZK, Galbusera F, Espinoza-Orías AA, Giers M, Lundberg H, Ames C, Karppinen J, Louie PK, Phillips FM, Pourzal R, Schwab J, Sciubba DM, Wang JC, Wilke HJ, Williams FMK, Mohiuddin SA, Makhni MC, Shepard NA, An HS, Samartzis D. Intelligence-Based Spine Care Model: A New Era of Research and Clinical Decision-Making. Global Spine J. 2021 Mar; 11(2):135-145. PMID: 33251858.
      View in: PubMed
    18. Lovecchio F, Riew GJ, Samartzis D, Louie PK, Germscheid N, An HS, Cheung JPY, Chutkan N, Mallow GM, Neva MH, Phillips FM, Sciubba DM, El-Sharkawi M, Valacco M, McCarthy MH, Makhni MC, Iyer S. Provider confidence in the telemedicine spine evaluation: results from a global study. Eur Spine J. 2021 08; 30(8):2109-2123. PMID: 33222003.
      View in: PubMed
    19. Nguyen AQ, Harada GK, Leverich KL, Khanna K, Louie PK, Basques BA, Tao Y, Galbusera F, Niemeyer F, Wilke HJ, An HS, Samartzis D. High-Intensity Zones on MRI of the Cervical Spine in Patients: Epidemiology and Association With Pain and Disability. Global Spine J. 2020 Nov 18; 2192568220966328. PMID: 33203250.
      View in: PubMed
    20. Weiner JA, Swiatek PR, Johnson DJ, Louie PK, Harada GK, McCarthy MH, Germscheid N, Cheung JPY, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutkan NB, An HS, Samartzis D. Correction to: Learning from the past: did experience with previous epidemics help mitigate the impact of COVID-19 among spine surgeons worldwide? Eur Spine J. 2020 Nov; 29(11):2852. PMID: 32894347.
      View in: PubMed
    21. Louie PK, An HS, Phillips FM. Response to Letter to the Editor re: Comparison of Stand-alone Lateral Lumbar Interbody Fusion Versus Open Laminectomy and Posterolateral Instrumented Fusion in the Treatment of Adjacent Segment Disease Following Previous Lumbar Fusion Surgery. Spine (Phila Pa 1976). 2020 09 01; 45(17):E1132-E1133. PMID: 32576781.
      View in: PubMed
    22. Nolte MT, Harada GK, Louie PK, McCarthy MH, Sayari AJ, Mallow GM, Siyaji Z, Germscheid N, Cheung JP, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutkan NB, An HS, Samartzis D. COVID-19: Current and future challenges in spine care and education - a worldwide study. JOR Spine. 2020 Dec; 3(4):e1122. PMID: 33392457.
      View in: PubMed
    23. Wong AYL, Harada G, Lee R, Gandhi SD, Dziedzic A, Espinoza-Orias A, Parnianpour M, Louie PK, Basques B, An HS, Samartzis D. Preoperative paraspinal neck muscle characteristics predict early onset adjacent segment degeneration in anterior cervical fusion patients: A machine-learning modeling analysis. J Orthop Res. 2021 Aug; 39(8):1732-1744. PMID: 32816312.
      View in: PubMed
    24. Weiner JA, Swiatek PR, Johnson DJ, Louie PK, Harada GK, McCarthy MH, Germscheid N, Cheung JPY, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutkan NB, An HS, Samartzis D. Spine Surgery and COVID-19: The Influence of Practice Type on Preparedness, Response, and Economic Impact. Global Spine J. 2020 Aug 07; 2192568220949183. PMID: 32762354.
      View in: PubMed
    25. Harada GK, Alter K, Nguyen AQ, Tao Y, Louie PK, Basques BA, Galbusera F, Niemeyer F, Wilke HJ, An HS, Samartzis D. Cervical Spine Endplate Abnormalities and Association With Pain, Disability, and Adjacent Segment Degeneration After Anterior Cervical Discectomy and Fusion. Spine (Phila Pa 1976). 2020 Aug 01; 45(15):E917-E926. PMID: 32675603.
      View in: PubMed
    26. Chou PH, Chee A, Shi P, Lin CL, Zhao Y, Zhang L, An HS. Small molecule antagonist of C-C chemokine receptor 1 (CCR1) reduces disc inflammation in the rabbit model. Spine J. 2020 12; 20(12):2025-2036. PMID: 32673730.
      View in: PubMed
    27. Louie PK, Harada GK, McCarthy MH, Albert TJ, An HS, Samartzis D. The Global Spine Community and COVID-19: Divided or United? Spine (Phila Pa 1976). 2020 07 01; 45(13):E754-E757. PMID: 32404859.
      View in: PubMed
    28. Sayari AJ, Harada GK, Louie PK, McCarthy MH, Nolte MT, Mallow GM, Siyaji Z, Germscheid N, Cheung JPY, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutkan NB, An HS, Samartzis D. Personal Health of Spine Surgeons Can Impact Perceptions, Decision-Making and Healthcare Delivery During the COVID-19 Pandemic - A Worldwide Study. Neurospine. 2020 Jun; 17(2):313-330. PMID: 32615695.
      View in: PubMed
    29. Weiner JA, Swiatek PR, Johnson DJ, Louie PK, Harada GK, McCarthy MH, Germscheid N, Cheung JPY, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutken NB, An HS, Samartzis D. Learning from the past: did experience with previous epidemics help mitigate the impact of COVID-19 among spine surgeons worldwide? Eur Spine J. 2020 08; 29(8):1789-1805. PMID: 32500177.
      View in: PubMed
    30. Louie PK, Harada GK, McCarthy MH, Germscheid N, Cheung JPY, Neva MH, El-Sharkawi M, Valacco M, Sciubba DM, Chutkan NB, An HS, Samartzis D. The Impact of COVID-19 Pandemic on Spine Surgeons Worldwide. Global Spine J. 2020 Aug; 10(5):534-552. PMID: 32677575.
      View in: PubMed
    31. Iii WS, Orías AAE, Shifflett GD, Lee JYB, Siemionow K, Gandhi S, Fogg L, Samartzis D, Inoue N, An HS. Image-Based Markers Predict Dynamic Instability in Lumbar Degenerative Spondylolisthesis. Neurospine. 2020 Mar; 17(1):221-227. PMID: 32252172.
      View in: PubMed
    32. Baker JD, Harada GK, Tao Y, Louie PK, Basques BA, Galbusera F, Niemeyer F, Wilke HJ, An HS, Samartzis D. The Impact of Modic Changes on Preoperative Symptoms and Clinical Outcomes in Anterior Cervical Discectomy and Fusion Patients. Neurospine. 2020 Mar; 17(1):190-203. PMID: 32252168.
      View in: PubMed
    33. Harada GK, Tao Y, Louie PK, Basques BA, Galbusera F, Niemeyer F, Wilke HJ, Goldberg E, An HS, Samartzis D. Cervical spine MRI phenotypes and prediction of pain, disability and adjacent segment degeneration/disease after ACDF. J Orthop Res. 2021 03; 39(3):657-670. PMID: 32159238.
      View in: PubMed
    34. Harada GK, Basques BA, Samartzis D, Goldberg EJ, Colman MW, An HS. Development and validation of a novel scoring tool for predicting facility discharge after elective posterior lumbar fusion. Spine J. 2020 10; 20(10):1629-1637. PMID: 32135302.
      View in: PubMed
    35. Nolte MT, Louie PK, Harada GK, Khan JM, Ferguson J, Dewald CJ, An HS. Sagittal Balance in Adult Idiopathic Scoliosis. Clin Spine Surg. 2020 03; 33(2):53-61. PMID: 31913179.
      View in: PubMed
    36. Harada GK, Khan JM, Vetter C, Basques BA, Sayari AJ, Hayani Z, Tchalukov K, Louie PK, Colman M, An HS. Does the Number of Levels Fused Affect Spinopelvic Parameters and Clinical Outcomes Following Posterolateral Lumbar Fusion for Low-Grade Spondylolisthesis? Global Spine J. 2021 Jan; 11(1):116-121. PMID: 32875855.
      View in: PubMed
    37. Louie PK, Haws BE, Khan JM, Markowitz J, Movassaghi K, Ferguson J, Lopez GD, An HS, Phillips FM. Comparison of Stand-alone Lateral Lumbar Interbody Fusion Versus Open Laminectomy and Posterolateral Instrumented Fusion in the Treatment of Adjacent Segment Disease Following Previous Lumbar Fusion Surgery. Spine (Phila Pa 1976). 2019 Dec 15; 44(24):E1461-E1469. PMID: 31415471.
      View in: PubMed
    38. Khan JM, Basques BA, Harada GK, Louie PK, Chen I, Vetter C, Kadakia K, Elboghdady I, Colman M, An HS. Does increasing age impact clinical and radiographic outcomes following lumbar spinal fusion? Spine J. 2020 04; 20(4):563-571. PMID: 31731010.
      View in: PubMed
    39. Harada GK, Siyaji ZK, Younis S, Louie PK, Samartzis D, An HS. Imaging in Spine Surgery: Current Concepts and Future Directions. Spine Surg Relat Res. 2020; 4(2):99-110. PMID: 32405554.
      View in: PubMed
    40. Basques BA, Ahn J, Markowitz J, Harada G, Louie PK, Mormol J, Varthi A, Goldberg EJ, An HS. Does the Duration of Cervical Radicular Symptoms Impact Outcomes After Anterior Cervical Discectomy and Fusion? Clin Spine Surg. 2019 11; 32(9):387-391. PMID: 31569176.
      View in: PubMed
    41. Louie PK, Harada GK, Sayari AJ, Mayo BC, Khan JM, Varthi AG, Yacob A, Samartzis D, An HS. Etiology-Based Classification of Adjacent Segment Disease Following Lumbar Spine Fusion. HSS J. 2020 Jul; 16(2):130-136. PMID: 32523480.
      View in: PubMed
    42. Pan CC, Simon P, Espinoza Orías AA, Takatori R, An HS, Andersson GBJ, Inoue N. Lumbar facet joint subchondral bone density in low back pain and asymptomatic subjects. Skeletal Radiol. 2020 Apr; 49(4):571-576. PMID: 31673719.
      View in: PubMed
    43. Khan JM, Harada GK, Basques BA, Nolte MT, Louie PK, Iloanya M, Tchalukov K, Berkowitz M, Derman P, Colman M, An HS. Patients with predominantly back pain at the time of lumbar fusion for low-grade spondylolisthesis experience similar clinical improvement to patients with predominantly leg pain: mid-term results. Spine J. 2020 02; 20(2):276-282. PMID: 31563578.
      View in: PubMed
    44. Hong JT, Espinoza Orías AA, An HS. Anatomical study of the ventral neurovascular structures and hypoglossal canal for the surgery of the upper cervical spine. J Clin Neurosci. 2020 Jan; 71:245-249. PMID: 31493993.
      View in: PubMed
    45. Louie PK, Sayari AJ, Frank RM, An HS, Colman MW. Metastatic Renal Cell Carcinoma to the Spine and the Extremities: Evaluation, Diagnosis, and Treatment. JBJS Rev. 2019 09; 7(9):e7. PMID: 31567620.
      View in: PubMed
    46. Nolte MT, Basques BA, Louie PK, Khan JM, Varthi A, Paul J, An HS. Patients Undergoing Revision Microdiskectomy for Recurrent Lumbar Disk Herniation Experience Worse Clinical Outcomes and More Revision Surgeries Compared With Patients Undergoing a Primary Microdiskectomy. J Am Acad Orthop Surg. 2019 Sep 01; 27(17):e796-e803. PMID: 30768483.
      View in: PubMed
    47. Khan JM, Basques BA, Kunze KN, Grewal G, Hong YS, Pardo C, Louie PK, Colman M, An HS. Does obesity impact lumbar sagittal alignment and clinical outcomes after a posterior lumbar spine fusion? Eur Spine J. 2020 02; 29(2):340-348. PMID: 31420726.
      View in: PubMed
    48. Kim SI, Ha KY, An HS, Rhyu KW, Lee HW, Oh IS. Sex-specific and Age-specific Analgesia for Early Postoperative Pain Management After Lumbar Decompressive Surgery: A Randomized Clinical Trial. Clin Spine Surg. 2019 08; 32(7):E311-E318. PMID: 30585803.
      View in: PubMed
    49. Kedong H, Wang D, Sagaram M, An HS, Chee A. Anti-inflammatory effects of interleukin-4 on intervertebral disc cells. Spine J. 2020 01; 20(1):60-68. PMID: 31265894.
      View in: PubMed
    50. Khan JM, Michalski J, Basques BA, Louie PK, Chen O, Hayani Z, Kalish C, Elboghdady I, Colman M, An H. Do Clinical Outcomes and Sagittal Parameters Differ Between Diabetics and Nondiabetics for Degenerative Spondylolisthesis Undergoing Lumbar Fusion? Global Spine J. 2020 May; 10(3):286-293. PMID: 32313794.
      View in: PubMed
    51. Louie PK, Sexton AC, Bohl DD, Tabaraee E, Presciutti SM, Mayo BC, Paul JC, Saifi C, An HS. Rigid-Plating and Cortico-Cancellous Allograft Are Effective for 3-Level Anterior Cervical Discectomy and Fusion: Radiographic and Clinical Outcomes. Neurospine. 2020 Mar; 17(1):146-155. PMID: 31154693.
      View in: PubMed
    52. Basques BA, Khan JM, Louie PK, Mormol J, Heidt S, Varthi A, Paul JC, Goldberg EJ, An HS. Obesity does not impact clinical outcome but affects cervical sagittal alignment and adjacent segment degeneration in short term follow-up after an anterior cervical decompression and fusion. Spine J. 2019 07; 19(7):1146-1153. PMID: 30914278.
      View in: PubMed
    53. Movassaghi K, Basques BA, Louie PK, Khan JM, Derman PB, Nolte MT, Paul JC, Goldberg EJ, An HS. The Duration of Symptoms Does Not Impact Clinical Outcomes Following Lumbar Decompression Surgery. Spine (Phila Pa 1976). 2019 03 01; 44(5):305-308. PMID: 30059490.
      View in: PubMed
    54. Heidt ST, Louie PK, Khan JM, Basques BA, Hirsch B, Varthi A, Paul JC, Goldberg EJ, An HS. Comparing Allografts to Autografts for Maintenance of Cervical Sagittal Parameters and Clinical Outcomes Following Anterior Cervical Discectomy and Fusion With Anterior Cervical Plating. Neurospine. 2019 Sep; 16(3):618-625. PMID: 31154695.
      View in: PubMed
    55. Presciutti SM, Louie PK, Khan JM, Basques BA, Saifi C, Dewald CJ, Samartzis D, An HS. Sagittal spinopelvic malalignment in degenerative scoliosis patients: isolated correction of symptomatic levels and clinical decision-making. Scoliosis Spinal Disord. 2018; 13:28. PMID: 30607367.
      View in: PubMed
    56. Hwang J, Louie PK, Phillips FM, An HS, Samartzis D. Low back pain in children: a rising concern. Eur Spine J. 2019 02; 28(2):211-213. PMID: 30506290.
      View in: PubMed
    57. Khan JM, McKinney D, Basques BA, Louie PK, Carroll D, Paul J, Varthi A, Iyer S, An HS. Clinical Presentation and Outcomes of Patients With a Lumbar Far Lateral Herniated Nucleus Pulposus as Compared to Those With a Central or Paracentral Herniation. Global Spine J. 2019 Aug; 9(5):480-486. PMID: 31431869.
      View in: PubMed
    58. Louie PK, Espinoza Orías AA, Fogg LF, LaBelle M, An HS, Andersson GBJ. Changes in Lumbar Endplate Area and Concavity Associated With Disc Degeneration. Spine (Phila Pa 1976). 2018 Oct 01; 43(19):E1127-E1134. PMID: 29596278.
      View in: PubMed
    59. Shi P, Chee A, Liu W, Chou PH, Zhu J, An HS. Therapeutic effects of cell therapy with neonatal human dermal fibroblasts and rabbit dermal fibroblasts on disc degeneration and inflammation. Spine J. 2019 01; 19(1):171-181. PMID: 30142460.
      View in: PubMed
    60. Basques BA, Louie PK, Mormol J, Khan JM, Movassaghi K, Paul JC, Varthi A, Goldberg EJ, An HS. Multi- versus single-level anterior cervical discectomy and fusion: comparing sagittal alignment, early adjacent segment degeneration, and clinical outcomes. Eur Spine J. 2018 11; 27(11):2745-2753. PMID: 29946938.
      View in: PubMed
    61. Samartzis D, Alini M, An HS, Karppinen J, Rajasekaran S, Vialle L, Wang JC, de Kleuver M. Precision Spine Care: A New Era of Discovery, Innovation, and Global Impact. Global Spine J. 2018 Jun; 8(4):321-322. PMID: 29977715.
      View in: PubMed
    62. Leveridge MJ, Siemens DR, Brennan K, Izard JP, Karim S, An H, Mackillop WJ, Booth CM. Temporal trends in management and outcomes of testicular cancer: A population-based study. Cancer. 2018 07 01; 124(13):2724-2732. PMID: 29660851.
      View in: PubMed
    63. Saifi C, Bernhard J, Shillingford JN, Petridis P, Robinson S, Guo XE, Weidenbaum M, Lehman RA, An HS, Lenke LG, Vunjak-Novakovic G, Laratta JL. Tissue Engineered Bone Differentiated From Human Adipose Derived Stem Cells Inhibit Posterolateral Fusion in an Athymic Rat Model. Spine (Phila Pa 1976). 2018 04 15; 43(8):533-541. PMID: 28816826.
      View in: PubMed
    64. Ding Q, Ren Y, Che H, Ma C, Li H, Yu S, Zhang Y, An H, O'Keefe RJ, Chen D, Block JA, Yin G, Li T. Cyclooxygenase-2 deficiency causes delayed ossification of lumbar vertebral endplates. Am J Transl Res. 2018; 10(3):718-730. PMID: 29636862.
      View in: PubMed
    65. Tan LA, Kasliwal MK, An HS, Byrne RW. Obstructive Hydrocephalus Due to Intraventricular Hemorrhage After Incidental Durotomy During Lumbar Spine Surgery. Spine (Phila Pa 1976). 2018 03 01; 43(5):E316-E319. PMID: 26208226.
      View in: PubMed
    66. Shifflett GD, Iyer S, Derman PB, Louie PK, An HS. UPPER CERVICAL RADICULOPATHY: THE HIDDEN PATHOLOGY OF THE SPINE. Spine Surg Relat Res. 2018; 2(2):93-97. PMID: 31440654.
      View in: PubMed
    67. Yang SH, Espinoza Orías AA, Pan CC, Senoo I, Andersson GBJ, An HS, Inoue N. Spatial geometric and magnetic resonance signal intensity changes with advancing stages of nucleus pulposus degeneration. BMC Musculoskelet Disord. 2017 Nov 21; 18(1):473. PMID: 29162082.
      View in: PubMed
    68. Saifi C, Fein AW, Cazzulino A, Lehman RA, Phillips FM, An HS, Riew KD. Trends in resource utilization and rate of cervical disc arthroplasty and anterior cervical discectomy and fusion throughout the United States from 2006 to 2013. Spine J. 2018 06; 18(6):1022-1029. PMID: 29128581.
      View in: PubMed
    69. Saifi C, Cazzulino A, Park C, Laratta J, Louie PK, Shillingford JN, Lehman R, An H, Phillips F. National Trends for Primary and Revision Lumbar Disc Arthroplasty Throughout the United States. Global Spine J. 2018 Apr; 8(2):172-177. PMID: 29662748.
      View in: PubMed
    70. Hong JT, Tomoyuki T, Jain A, Orías AAE, Inoue N, An HS. Which salvage fixation technique is best for the failed initial screw fixation at the cervicothoracic junction? A biomechanical comparison study. Eur Spine J. 2017 09; 26(9):2417-2424. PMID: 28752245.
      View in: PubMed
    71. Basques BA, Espinoza Orías AA, Shifflett GD, Fice MP, Andersson GB, An HS, Inoue N. The Kinematics and Spondylosis of the Lumbar Spine Vary Depending on the Levels of Motion Segments in Individuals With Low Back Pain. Spine (Phila Pa 1976). 2017 Jul 01; 42(13):E767-E774. PMID: 27831966.
      View in: PubMed
    72. Bak SH, Roh HG, Moon WJ, Choi JW, An HS. Appropriate Minimal Dose of Gadobutrol for 3D Time-Resolved MRA of the Supra-Aortic Arteries: Comparison with Conventional Single-Phase High-Resolution 3D Contrast-Enhanced MRA. AJNR Am J Neuroradiol. 2017 Jul; 38(7):1383-1390. PMID: 28473338.
      View in: PubMed
    73. Louie PK, Presciutti SM, Iantorno SE, Bohl DD, Shah K, Shifflett GD, An HS. There is no increased risk of adjacent segment disease at the cervicothoracic junction following an anterior cervical discectomy and fusion to C7. Spine J. 2017 09; 17(9):1264-1271. PMID: 28456670.
      View in: PubMed
    74. Louie PK, Paul JC, Markowitz J, Bell JA, Basques BA, Yacob A, An HS. Stability-preserving decompression in degenerative versus congenital spinal stenosis: demographic patterns and patient outcomes. Spine J. 2017 10; 17(10):1420-1425. PMID: 28456675.
      View in: PubMed
    75. Chou PH, Lin HH, An HS, Liu KY, Su WR, Lin CL. Could the Topping-Off Technique Be the Preventive Strategy against Adjacent Segment Disease after Pedicle Screw-Based Fusion in Lumbar Degenerative Diseases? A Systematic Review. Biomed Res Int. 2017; 2017:4385620. PMID: 28321409.
      View in: PubMed
    76. Liu W, Liu D, Zheng J, Shi P, Chou PH, Oh C, Chen D, An HS, Chee A. Annulus fibrosus cells express and utilize C-C chemokine receptor 5 (CCR5) for migration. Spine J. 2017 05; 17(5):720-726. PMID: 28108404.
      View in: PubMed
    77. Yildirim B, Puvanesarajah V, An HS, Novicoff WM, Jain A, Shen FH, Hassanzadeh H. Lumbosacral Epidural Lipomatosis: A Retrospective Matched Case-Control Database Study. World Neurosurg. 2016 Dec; 96:209-214. PMID: 27609448.
      View in: PubMed
    78. Shi P, Chen EY, Cs-Szabo G, Chee A, Tannoury C, Qin L, Lin H, An S, An HS, Zhang Y. Biglycan Inhibits Capsaicin-Induced Substance P Release by Cultured Dorsal Root Ganglion Neurons. Am J Phys Med Rehabil. 2016 09; 95(9):656-62. PMID: 26945213.
      View in: PubMed
    79. Ellman MB, Kim J, An HS, Chen D, Kc R, Li X, Xiao G, Yan D, Suh J, van Wijnen AJ, Wang JH, Kim SG, Im HJ. Corrigendum to "Lactoferricin enhances BMP7-stimulated anabolic pathways in intervertebral disc cells" [Gene. 2013 Jul. 25; 524(2):282-91]. Gene. 2017 02 20; 602:61. PMID: 27354310.
      View in: PubMed
    80. Zhou J, Espinoza Orías AA, Kang X, He J, Zhang Z, Inoue N, An HS. CT-based morphometric analysis of the occipital condyle: focus on occipital condyle screw insertion. J Neurosurg Spine. 2016 Nov; 25(5):572-579. PMID: 27341056.
      View in: PubMed
    81. Zhang Y, Chee A, Shi P, Adams SL, Markova DZ, Anderson DG, Smith HE, Deng Y, Plastaras CT, An HS. Intervertebral Disc Cells Produce Interleukins Found in Patients with Back Pain. Am J Phys Med Rehabil. 2016 06; 95(6):407-15. PMID: 26495812.
      View in: PubMed
    82. Ashley JW, Enomoto-Iwamoto M, Smith LJ, Mauck RL, Chan D, Lee J, Heyworth MF, An H, Zhang Y. Intervertebral disc development and disease-related genetic polymorphisms. Genes Dis. 2016 Sep; 3(3):171-177. PMID: 30258887.
      View in: PubMed
    83. Chee A, Shi P, Cha T, Kao TH, Yang SH, Zhu J, Chen D, Zhang Y, An HS. Cell Therapy with Human Dermal Fibroblasts Enhances Intervertebral Disk Repair and Decreases Inflammation in the Rabbit Model. Global Spine J. 2016 Dec; 6(8):771-779. PMID: 27853661.
      View in: PubMed
    84. Espinoza Orías AA, Mammoser NM, Triano JJ, An HS, Andersson GB, Inoue N. Effects of Axial Torsion on Disc Height Distribution: An In Vivo Study. J Manipulative Physiol Ther. 2016 05; 39(4):294-303. PMID: 27059249.
      View in: PubMed
    85. An HS. Influence of graft size for anterior discectomy and fusion in flexion-distraction injuries. Spine J. 2016 04; 16(4):530. PMID: 27173906.
      View in: PubMed
    86. Oh CD, Im HJ, Suh J, Chee A, An H, Chen D. Rho-Associated Kinase Inhibitor Immortalizes Rat Nucleus Pulposus and Annulus Fibrosus Cells: Establishment of Intervertebral Disc Cell Lines With Novel Approaches. Spine (Phila Pa 1976). 2016 Mar; 41(5):E255-61. PMID: 26693672.
      View in: PubMed
    87. Park SY, An HS, Lee SH, Suh SW, Kim JL, Yoon SJ. A prospective randomized comparative study of postoperative pain control using an epidural catheter in patients undergoing posterior lumbar interbody fusion. Eur Spine J. 2016 05; 25(5):1601-1607. PMID: 26787345.
      View in: PubMed
    88. Zhang Y, Chee A, Shi P, Wang R, Moss I, Chen EY, He TC, An HS. Allogeneic Articular Chondrocyte Transplantation Downregulates Interleukin 8 Gene Expression in the Degenerating Rabbit Intervertebral Disk In Vivo. Am J Phys Med Rehabil. 2015 Jul; 94(7):530-8. PMID: 25133623.
      View in: PubMed
    89. Park SY, An HS, Moon SH, Lee HM, Suh SW, Chen D, Jeon JH. Neuropathic Pain Components in Patients with Lumbar Spinal Stenosis. Yonsei Med J. 2015 Jul; 56(4):1044-50. PMID: 26069129.
      View in: PubMed
    90. Kim JS, Ali MH, Wydra F, Li X, Hamilton JL, An HS, Cs-Szabo G, Andrews S, Moric M, Xiao G, Wang JH, Chen D, Cavanaugh JM, Im HJ. Characterization of degenerative human facet joints and facet joint capsular tissues. Osteoarthritis Cartilage. 2015 Dec; 23(12):2242-2251. PMID: 26117175.
      View in: PubMed
    91. Munns JJ, Lee JY, Espinoza Orías AA, Takatori R, Andersson GB, An HS, Inoue N. Ligamentum flavum hypertrophy in asymptomatic and chronic low back pain subjects. PLoS One. 2015; 10(5):e0128321. PMID: 26010138.
      View in: PubMed
    92. Scanzello CR, Markova DZ, Chee A, Xiu Y, Adams SL, Anderson G, Zgonis M, Qin L, An HS, Zhang Y. Fibronectin splice variation in human knee cartilage, meniscus and synovial membrane: observations in osteoarthritic knee. J Orthop Res. 2015 Apr; 33(4):556-62. PMID: 25410897.
      View in: PubMed
    93. Kurd M, Cohick S, Park A, Ahmadinia K, Lee J, An H. Fusion in degenerative spondylolisthesis: comparison of osteoconductive and osteoinductive bone graft substitutes. Eur Spine J. 2015 May; 24(5):1066-73. PMID: 25371089.
      View in: PubMed
    94. An HS, Kang HW, Han HS, Park JY, Hong CG, Park J, Myeong JI, An CM. Genetic differences between the wild and hatchery-produced populations of Korean short barbeled grunter (Hapalogenys nitens) determined with microsatellite markers. Genet Mol Res. 2014 Oct 31; 13(4):8901-12. PMID: 25366781.
      View in: PubMed
    95. Gu SX, Li X, Hamilton JL, Chee A, Kc R, Chen D, An HS, Kim JS, Oh CD, Ma YZ, van Wijnen AJ, Im HJ. MicroRNA-146a reduces IL-1 dependent inflammatory responses in the intervertebral disc. Gene. 2015 Jan 25; 555(2):80-7. PMID: 25311550.
      View in: PubMed
    96. An HS, Kim HY, Kim JB, Chang DS, Park KD, Lee JW, Myeong JI, An CM. Genetic characterization of hatchery populations of Korean spotted sea bass (Lateolabrax maculatus) using multiplex polymerase chain reaction assays. Genet Mol Res. 2014 Aug 28; 13(3):6701-15. PMID: 25177950.
      View in: PubMed
    97. Senoo I, Espinoza Orías AA, An HS, Andersson GB, Park DK, Triano JJ, Inoue N. In vivo 3-dimensional morphometric analysis of the lumbar foramen in healthy subjects. Spine (Phila Pa 1976). 2014 Jul 15; 39(16):E929-35. PMID: 24825158.
      View in: PubMed
    98. Ruel N, Markova DZ, Adams SL, Scanzello C, Cs-Szabo G, Gerard D, Shi P, Anderson DG, Zack M, An HS, Chen D, Zhang Y. Fibronectin fragments and the cleaving enzyme ADAM-8 in the degenerative human intervertebral disc. Spine (Phila Pa 1976). 2014 Jul 15; 39(16):1274-9. PMID: 25010013.
      View in: PubMed
    99. An HS, Al-Shihabi L, Kurd M. Surgical treatment for ossification of the posterior longitudinal ligament in the cervical spine. J Am Acad Orthop Surg. 2014 Jul; 22(7):420-9. PMID: 24966248.
      View in: PubMed
    100. Cvetanovich GL, Hsu AR, Frank RM, An HS, Andersson GB. Spontaneous resorption of a large cervical herniated nucleus pulposus. Am J Orthop (Belle Mead NJ). 2014 Jul; 43(7):E140-5. PMID: 25046190.
      View in: PubMed
    101. Zhang Y, Lenart BA, Lee JK, Chen D, Shi P, Ren J, Muehleman C, Chen D, An HS. Histological features of endplates of the mammalian spine: from mice to men. Spine (Phila Pa 1976). 2014 Mar 01; 39(5):E312-7. PMID: 24365894.
      View in: PubMed
    102. Hong JT, Qasim M, Espinoza Orías AA, Natarajan RN, An HS. A biomechanical comparison of three different posterior fixation constructs used for c6-c7 cervical spine immobilization: a finite element study. Neurol Med Chir (Tokyo). 2014; 54(9):727-35. PMID: 24418790.
      View in: PubMed
    103. Tannoury CA, An HS. Complications with the use of bone morphogenetic protein 2 (BMP-2) in spine surgery. Spine J. 2014 Mar 01; 14(3):552-9. PMID: 24412416.
      View in: PubMed
    104. Chee AV, Ren J, Lenart BA, Chen EY, Zhang Y, An HS. Cytotoxicity of local anesthetics and nonionic contrast agents on bovine intervertebral disc cells cultured in a three-dimensional culture system. Spine J. 2014 Mar 01; 14(3):491-8. PMID: 24246749.
      View in: PubMed
    105. Hussain M, Nassr A, Natarajan RN, An HS, Andersson GB. Relationship between biomechanical changes at adjacent segments and number of fused bone grafts in multilevel cervical fusions: a finite element investigation. J Neurosurg Spine. 2014 Jan; 20(1):22-9. PMID: 24180310.
      View in: PubMed
    106. Qasim M, Natarajan RN, An HS, Andersson GB. Damage accumulation location under cyclic loading in the lumbar disc shifts from inner annulus lamellae to peripheral annulus with increasing disc degeneration. J Biomech. 2014 Jan 03; 47(1):24-31. PMID: 24231247.
      View in: PubMed
    107. Ma X, An HS, Zhang Y, Brown NM, Chen Z, Zhang G, Xiang H, Hu Y, Chen B. A radical procedure of circumferential spinal cord decompression through a modified posterior approach for thoracic myelopathy caused by severely impinging anterior ossification. Spine J. 2014 Apr; 14(4):651-8. PMID: 24161362.
      View in: PubMed
    108. Kim JS, Ellman MB, Yan D, An HS, Kc R, Li X, Chen D, Xiao G, Cs-Szabo G, Hoskin DW, Buechter DD, Van Wijnen AJ, Im HJ. Lactoferricin mediates anti-inflammatory and anti-catabolic effects via inhibition of IL-1 and LPS activity in the intervertebral disc. J Cell Physiol. 2013 Sep; 228(9):1884-96. PMID: 23460134.
      View in: PubMed
    109. Qasim M, Hong JT, Natarajan RN, An HS. A Biomechanical Comparison of Intralaminar C7 Screw Constructs with and without Offset Connector Used for C6-7 Cervical Spine Immobilization : A Finite Element Study. J Korean Neurosurg Soc. 2013 Jun; 53(6):331-6. PMID: 24003366.
      View in: PubMed
    110. Anderson DG, Markova D, An HS, Chee A, Enomoto-Iwamoto M, Markov V, Saitta B, Shi P, Gupta C, Zhang Y. Human umbilical cord blood-derived mesenchymal stem cells in the cultured rabbit intervertebral disc: a novel cell source for disc repair. Am J Phys Med Rehabil. 2013 May; 92(5):420-9. PMID: 23598901.
      View in: PubMed
    111. Ellman MB, Kim J, An HS, Chen D, Kc R, Li X, Xiao G, Yan D, Suh J, van Wijnen AJ, Wang JH, Kim SG, Im HJ. Lactoferricin enhances BMP7-stimulated anabolic pathways in intervertebral disc cells. Gene. 2013 07 25; 524(2):282-91. PMID: 23644135.
      View in: PubMed
    112. Hussain M, Nassr A, Natarajan RN, An HS, Andersson GB. Biomechanics of adjacent segments after a multilevel cervical corpectomy using anterior, posterior, and combined anterior-posterior instrumentation techniques: a finite element model study. Spine J. 2013 Jun; 13(6):689-96. PMID: 23578989.
      View in: PubMed
    113. Ellman MB, Yan D, Ahmadinia K, Chen D, An HS, Im HJ. Fibroblast growth factor control of cartilage homeostasis. J Cell Biochem. 2013 Apr; 114(4):735-42. PMID: 23060229.
      View in: PubMed
    114. Cha TD, An HS. Cervical spine manifestations in patients with inflammatory arthritides. Nat Rev Rheumatol. 2013 Jul; 9(7):423-32. PMID: 23528639.
      View in: PubMed
    115. Moss IL, Zhang Y, Shi P, Chee A, Piel MJ, An HS. Retroperitoneal approach to the intervertebral disc for the annular puncture model of intervertebral disc degeneration in the rabbit. Spine J. 2013 Mar; 13(3):229-34. PMID: 23369496.
      View in: PubMed
    116. Hsu WK, Nickoli MS, Wang JC, Lieberman JR, An HS, Yoon ST, Youssef JA, Brodke DS, McCullough CM. Improving the clinical evidence of bone graft substitute technology in lumbar spine surgery. Global Spine J. 2012 Dec; 2(4):239-48. PMID: 24353975.
      View in: PubMed
    117. Jacobs JJ, An HS. Commentary: Total disc arthroplasty and the bearing surface debate. Spine J. 2012 Aug; 12(8):702-4. PMID: 23021032.
      View in: PubMed
    118. Lotz JC, Haughton V, Boden SD, An HS, Kang JD, Masuda K, Freemont A, Berven S, Sengupta DK, Tanenbaum L, Maurer P, Ranganathan A, Alavi A, Marinelli NL. New treatments and imaging strategies in degenerative disease of the intervertebral disks. Radiology. 2012 Jul; 264(1):6-19. PMID: 22723559.
      View in: PubMed
    119. Ellman MB, Kim JS, An HS, Chen D, KC R, An J, Dittakavi T, van Wijnen AJ, Cs-Szabo G, Li X, Xiao G, An S, Kim SG, Im HJ. Toll-like receptor adaptor signaling molecule MyD88 on intervertebral disk homeostasis: in vitro, ex vivo studies. Gene. 2012 Sep 01; 505(2):283-90. PMID: 22692007.
      View in: PubMed
    120. Qasim M, Natarajan RN, An HS, Andersson GB. Initiation and progression of mechanical damage in the intervertebral disc under cyclic loading using continuum damage mechanics methodology: A finite element study. J Biomech. 2012 Jul 26; 45(11):1934-40. PMID: 22682891.
      View in: PubMed
    121. Hussain M, Natarajan RN, Chaudhary G, An HS, Andersson GB. Posterior facet load changes in adjacent segments due to moderate and severe degeneration in C5-C6 disc: a poroelastic C3-T1 finite element model study. J Spinal Disord Tech. 2012 Jun; 25(4):218-25. PMID: 22652989.
      View in: PubMed
    122. Khan SN, Braaksma B, An HS. Cervical pedicle subtraction osteotomy for fixed flexion deformities. Orthopedics. 2012 Jun; 35(6):484-9. PMID: 22691636.
      View in: PubMed
    123. Simon P, Espinoza Orías AA, Andersson GB, An HS, Inoue N. In vivo topographic analysis of lumbar facet joint space width distribution in healthy and symptomatic subjects. Spine (Phila Pa 1976). 2012 May 20; 37(12):1058-64. PMID: 22433501.
      View in: PubMed
    124. Takigawa T, Simon P, Espinoza Orías AA, Hong JT, Ito Y, Inoue N, An HS. Biomechanical comparison of occiput-C1-C2 fixation techniques: C0-C1 transarticular screw and direct occiput condyle screw. Spine (Phila Pa 1976). 2012 May 20; 37(12):E696-701. PMID: 22158063.
      View in: PubMed
    125. Kang J, An H, Hilibrand A, Yoon ST, Kavanagh E, Boden S. Grafton and local bone have comparable outcomes to iliac crest bone in instrumented single-level lumbar fusions. Spine (Phila Pa 1976). 2012 May 20; 37(12):1083-91. PMID: 22076647.
      View in: PubMed
    126. Hussain M, Nassr A, Natarajan RN, An HS, Andersson GB. Corpectomy versus discectomy for the treatment of multilevel cervical spine pathology: a finite element model analysis. Spine J. 2012 May; 12(5):401-8. PMID: 22572585.
      View in: PubMed
    127. Kim JS, Ellman MB, An HS, Yan D, van Wijnen AJ, Murphy G, Hoskin DW, Im HJ. Lactoferricin mediates anabolic and anti-catabolic effects in the intervertebral disc. J Cell Physiol. 2012 Apr; 227(4):1512-20. PMID: 21678402.
      View in: PubMed
    128. Singh K, Phillips FM, Park DK, Pelton MA, An HS, Goldberg EJ. Factors affecting reoperations after anterior cervical discectomy and fusion within and outside of a Federal Drug Administration investigational device exemption cervical disc replacement trial. Spine J. 2012 May; 12(5):372-8. PMID: 22425784.
      View in: PubMed
    129. Jacobson ME, Khan SN, An HS. C1-C2 posterior fixation: indications, technique, and results. Orthop Clin North Am. 2012 Jan; 43(1):11-8, vii. PMID: 22082625.
      View in: PubMed
    130. Ellman MB, Kim JS, An HS, Kroin JS, Li X, Chen D, Yan D, Buechter DD, Nakayama K, Liu B, Morgan S, Im HJ. The pathophysiologic role of the protein kinase Cd pathway in the intervertebral discs of rabbits and mice: in vitro, ex vivo, and in vivo studies. Arthritis Rheum. 2012 Jun; 64(6):1950-9. PMID: 22161873.
      View in: PubMed
    131. An HS, Kim EM, Lee JH, Noh JK, An CM, Yoon SJ, Park KD, Myeong JI. Population genetic structure of wild and hatchery black rockfish Sebastes inermis in Korea, assessed using cross-species microsatellite markers. Genet Mol Res. 2011 Oct 13; 10(4):2492-504. PMID: 22009861.
      View in: PubMed
    132. Kim JS, Kroin JS, Li X, An HS, Buvanendran A, Yan D, Tuman KJ, van Wijnen AJ, Chen D, Im HJ. The rat intervertebral disk degeneration pain model: relationships between biological and structural alterations and pain. Arthritis Res Ther. 2011; 13(5):R165. PMID: 21996269.
      View in: PubMed
    133. Hussain M, Natarajan RN, An HS, Andersson GB. Progressive disc degeneration at C5-C6 segment affects the mechanics between disc heights and posterior facets above and below the degenerated segment: A flexion-extension investigation using a poroelastic C3-T1 finite element model. Med Eng Phys. 2012 Jun; 34(5):552-8. PMID: 21925919.
      View in: PubMed
    134. Zhang Y, Drapeau S, An HS, Markova D, Lenart BA, Anderson DG. Histological features of the degenerating intervertebral disc in a goat disc-injury model. Spine (Phila Pa 1976). 2011 Sep 01; 36(19):1519-27. PMID: 21245789.
      View in: PubMed
    135. Hong JT, Takigawa T, Udayakunmar R, Shin HK, Simon P, Espinoza Orías AA, Inoue N, An HS. Biomechanical effect of the C2 laminar decortication on the stability of C2 intralaminar screw construct and biomechanical comparison of C2 intralaminar screw and C2 pars screw. Neurosurgery. 2011 Sep; 69(1 Suppl Operative):ons1-6; discussion ons6-7. PMID: 21415794.
      View in: PubMed
    136. Siemionow K, An H, Masuda K, Andersson G, Cs-Szabo G. The effects of age, sex, ethnicity, and spinal level on the rate of intervertebral disc degeneration: a review of 1712 intervertebral discs. Spine (Phila Pa 1976). 2011 Aug 01; 36(17):1333-9. PMID: 21217432.
      View in: PubMed
    137. An HS, Masuda K, Cs-Szabo G, Zhang Y, Chee A, Andersson GB, Im HJ, Thonar EJ, Kwon YM. Biologic repair and regeneration of the intervertebral disk. J Am Acad Orthop Surg. 2011 Jul; 19(7):450-2. PMID: 21724924.
      View in: PubMed
    138. Zhang Y, Chee A, Thonar EJ, An HS. Intervertebral disk repair by protein, gene, or cell injection: a framework for rehabilitation-focused biologics in the spine. PM R. 2011 Jun; 3(6 Suppl 1):S88-94. PMID: 21703587.
      View in: PubMed
    139. Hussain M, Nassr A, Natarajan RN, An HS, Andersson GB. Biomechanical effects of anterior, posterior, and combined anterior-posterior instrumentation techniques on the stability of a multilevel cervical corpectomy construct: a finite element model analysis. Spine J. 2011 Apr; 11(4):324-30. PMID: 21474084.
      View in: PubMed
    140. Hong JT, Tomoyuki T, Udayakumar R, Espinoza Orías AA, Inoue N, An HS. Biomechanical comparison of three different types of C7 fixation techniques. Spine (Phila Pa 1976). 2011 Mar 01; 36(5):393-8. PMID: 21325933.
      View in: PubMed
    141. Hussain M, Natarajan RN, Chaudhary G, An HS, Andersson GB. Simulation of inhomogeneous rather than homogeneous poroelastic tissue material properties within disc annulus and nucleus better predicts cervical spine response: a C3-T1 finite element model analysis under compression and moment loadings. Spine (Phila Pa 1976). 2011 Feb 15; 36(4):E245-55. PMID: 21270714.
      View in: PubMed
    142. Hong JT, Takigawa T, Sugisaki K, Espinoza Orías AA, Inoue N, An HS. Biomechanical and morphometric evaluation of occipital condyle for occipitocervical segmental fixation. Neurol Med Chir (Tokyo). 2011; 51(10):701-6. PMID: 22027245.
      View in: PubMed
    143. Hussain M, Natarajan RN, Chaudhary G, An HS, Andersson GB. Relative contributions of strain-dependent permeability and fixed charged density of proteoglycans in predicting cervical disc biomechanics: a poroelastic C5-C6 finite element model study. Med Eng Phys. 2011 May; 33(4):438-45. PMID: 21167763.
      View in: PubMed
    144. Kim JS, Ellman MB, An HS, van Wijnen AJ, Borgia JA, Im HJ. Insulin-like growth factor 1 synergizes with bone morphogenetic protein 7-mediated anabolism in bovine intervertebral disc cells. Arthritis Rheum. 2010 Dec; 62(12):3706-15. PMID: 20812336.
      View in: PubMed
    145. Hussain M, Natarajan RN, An HS, Andersson GB. Reduction in segmental flexibility because of disc degeneration is accompanied by higher changes in facet loads than changes in disc pressure: a poroelastic C5-C6 finite element investigation. Spine J. 2010 Dec; 10(12):1069-77. PMID: 21094468.
      View in: PubMed
    146. Takatori R, Tokunaga D, Hase H, Mikami Y, Ikeda T, Harada T, Imai K, Ito H, Nishimura T, An HS, Inoue N, Kubo T. Three-dimensional morphology and kinematics of the craniovertebral junction in rheumatoid arthritis. Spine (Phila Pa 1976). 2010 Nov 01; 35(23):E1278-84. PMID: 20736886.
      View in: PubMed
    147. Duan CY, Espinoza Orías AA, Shott S, An HS, Andersson GB, Hu JZ, Lu HB, Inoue N. In vivo measurement of the subchondral bone thickness of lumbar facet joint using magnetic resonance imaging. Osteoarthritis Cartilage. 2011 Jan; 19(1):96-102. PMID: 21034837.
      View in: PubMed
    148. Takigawa T, Espinoza Orías AA, An HS, Gohgi S, Udayakumar RK, Sugisaki K, Natarajan RN, Wimmer MA, Inoue N. Spinal kinematics and facet load transmission after total disc replacement. Spine (Phila Pa 1976). 2010 Oct 15; 35(22):E1160-6. PMID: 20881657.
      View in: PubMed
    149. Hussain M, Natarajan RN, An HS, Andersson GB. Patterns of height changes in anterior and posterior cervical disc regions affects the contact loading at posterior facets during moderate and severe disc degeneration: a poroelastic C5-C6 finite element model study. Spine (Phila Pa 1976). 2010 Aug 15; 35(18):E873-81. PMID: 21289493.
      View in: PubMed
    150. Anderson DG, Markova D, Adams SL, Pacifici M, An HS, Zhang Y. Fibronectin splicing variants in human intervertebral disc and association with disc degeneration. Spine (Phila Pa 1976). 2010 Aug 01; 35(17):1581-8. PMID: 20628340.
      View in: PubMed
    151. Weinstein JN, Tosteson TD, Lurie JD, Tosteson A, Blood E, Herkowitz H, Cammisa F, Albert T, Boden SD, Hilibrand A, Goldberg H, Berven S, An H. Surgical versus nonoperative treatment for lumbar spinal stenosis four-year results of the Spine Patient Outcomes Research Trial. Spine (Phila Pa 1976). 2010 Jun 15; 35(14):1329-38. PMID: 20453723.
      View in: PubMed
    152. Park DK, Lee MJ, Lin EL, Singh K, An HS, Phillips FM. The relationship of intrapsoas nerves during a transpsoas approach to the lumbar spine: anatomic study. J Spinal Disord Tech. 2010 Jun; 23(4):223-8. PMID: 20084033.
      View in: PubMed
    153. Hussain M, Natarajan RN, An HS, Andersson GB. Motion changes in adjacent segments due to moderate and severe degeneration in C5-C6 disc: a poroelastic C3-T1 finite element model study. Spine (Phila Pa 1976). 2010 Apr 20; 35(9):939-47. PMID: 20375779.
      View in: PubMed
    154. Otsuka Y, An HS, Ochia RS, Andersson GB, Espinoza Orías AA, Inoue N. In vivo measurement of lumbar facet joint area in asymptomatic and chronic low back pain subjects. Spine (Phila Pa 1976). 2010 Apr 15; 35(8):924-8. PMID: 20354471.
      View in: PubMed
    155. Park DK, An HS, Lurie JD, Zhao W, Tosteson A, Tosteson TD, Herkowitz H, Errico T, Weinstein JN. Does multilevel lumbar stenosis lead to poorer outcomes?: a subanalysis of the Spine Patient Outcomes Research Trial (SPORT) lumbar stenosis study. Spine (Phila Pa 1976). 2010 Feb 15; 35(4):439-46. PMID: 20081560.
      View in: PubMed
    156. Sugisaki K, An HS, Espinoza Orías AA, Rhim R, Andersson GB, Inoue N. In vivo three-dimensional morphometric analysis of the lumbar pedicle isthmus. Spine (Phila Pa 1976). 2009 Nov 15; 34(24):2599-604. PMID: 19910763.
      View in: PubMed
    157. Hussain M, Natarajan RN, Fayyazi AH, Braaksma BR, Andersson GB, An HS. Screw angulation affects bone-screw stresses and bone graft load sharing in anterior cervical corpectomy fusion with a rigid screw-plate construct: a finite element model study. Spine J. 2009 Dec; 9(12):1016-23. PMID: 19819193.
      View in: PubMed
    158. Deng Y, Lv G, An HS. En bloc spondylectomy for the treatment of spinal tuberculosis with fixed and sharply angulated kyphotic deformity. Spine (Phila Pa 1976). 2009 Sep 15; 34(20):2140-6. PMID: 19752699.
      View in: PubMed
    159. An HS. Making ethical decisions in current orthopedic practice. Am J Orthop (Belle Mead NJ). 2009 Aug; 38(8):382-3. PMID: 19809602.
      View in: PubMed
    160. Zhang Y, Markova D, Im HJ, Hu W, Thonar EJ, He TC, An HS, Phillips FM, Anderson DG. Primary bovine intervertebral disc cells transduced with adenovirus overexpressing 12 BMPs and Sox9 maintain appropriate phenotype. Am J Phys Med Rehabil. 2009 Jun; 88(6):455-63. PMID: 19454853.
      View in: PubMed
    161. Park DK, An HS. Problems related to cervical fusion: malalignment and nonunion. Instr Course Lect. 2009; 58:737-45. PMID: 19385582.
      View in: PubMed
    162. Singh K, Masuda K, Thonar EJ, An HS, Cs-Szabo G. Age-related changes in the extracellular matrix of nucleus pulposus and anulus fibrosus of human intervertebral disc. Spine (Phila Pa 1976). 2009 Jan 01; 34(1):10-6. PMID: 19127156.
      View in: PubMed
    163. Pearson AM, Lurie JD, Blood EA, Frymoyer JW, Braeutigam H, An H, Girardi FP, Weinstein JN. Spine patient outcomes research trial: radiographic predictors of clinical outcomes after operative or nonoperative treatment of degenerative spondylolisthesis. Spine (Phila Pa 1976). 2008 Dec 01; 33(25):2759-66. PMID: 19050582.
      View in: PubMed
    164. Li X, Phillips FM, An HS, Ellman M, Thonar EJ, Wu W, Park D, Im HJ. The action of resveratrol, a phytoestrogen found in grapes, on the intervertebral disc. Spine (Phila Pa 1976). 2008 Nov 15; 33(24):2586-95. PMID: 19011540.
      View in: PubMed
    165. Hong JT, Park DK, Lee MJ, Kim SW, An HS. Anatomical variations of the vertebral artery segment in the lower cervical spine: analysis by three-dimensional computed tomography angiography. Spine (Phila Pa 1976). 2008 Oct 15; 33(22):2422-6. PMID: 18923317.
      View in: PubMed
    166. Zhang Y, An HS, Tannoury C, Thonar EJ, Freedman MK, Anderson DG. Biological treatment for degenerative disc disease: implications for the field of physical medicine and rehabilitation. Am J Phys Med Rehabil. 2008 Sep; 87(9):694-702. PMID: 18716481.
      View in: PubMed
    167. An HS. New options in spine surgery--judgment is as important as ever. Am J Orthop (Belle Mead NJ). 2008 Aug; 37(8):397-8. PMID: 18836594.
      View in: PubMed
    168. Kim KW, Ha KY, Lee JS, Nam SW, Woo YK, Lim TH, An HS. Notochordal cells stimulate migration of cartilage end plate chondrocytes of the intervertebral disc in in vitro cell migration assays. Spine J. 2009 Apr; 9(4):323-9. PMID: 18619909.
      View in: PubMed
    169. Ellman MB, An HS, Muddasani P, Im HJ. Biological impact of the fibroblast growth factor family on articular cartilage and intervertebral disc homeostasis. Gene. 2008 Aug 15; 420(1):82-9. PMID: 18565695.
      View in: PubMed
    170. Takatori R, Tokunaga D, Inoue N, Hase H, Harada T, Suzuki H, Ito H, Nishimura T, An HS, Kubo T. In vivo segmental motion of the cervical spine in rheumatoid arthritis patients with atlantoaxial subluxation. Clin Exp Rheumatol. 2008 May-Jun; 26(3):442-8. PMID: 18578966.
      View in: PubMed
    171. Li X, An HS, Ellman M, Phillips F, Thonar EJ, Park DK, Udayakumar RK, Im HJ. Action of fibroblast growth factor-2 on the intervertebral disc. Arthritis Res Ther. 2008; 10(2):R48. PMID: 18435858.
      View in: PubMed
    172. Zhang Y, Phillips FM, Thonar EJ, Oegema T, An HS, Roman-Blas JA, He TC, Anderson DG. Cell therapy using articular chondrocytes overexpressing BMP-7 or BMP-10 in a rabbit disc organ culture model. Spine (Phila Pa 1976). 2008 Apr 15; 33(8):831-8. PMID: 18404100.
      View in: PubMed
    173. Singh K, Samartzis D, Biyani A, An HS. Lumbar spinal stenosis. J Am Acad Orthop Surg. 2008 Mar; 16(3):171-6. PMID: 18316715.
      View in: PubMed
    174. Singh K, Samartzis D, Somera AL, An HS. Cervical kyphosis and thoracic lordoscoliosis in a patient with cerebral palsy. Orthopedics. 2008 03; 31(3):276. PMID: 19292233.
      View in: PubMed
    175. An HS. Orthopedic surgeon in the ER: the importance of remembering the basics. Am J Orthop (Belle Mead NJ). 2008 Mar; 37(3):E46. PMID: 18438476.
      View in: PubMed
    176. Weinstein JN, Tosteson TD, Lurie JD, Tosteson AN, Blood E, Hanscom B, Herkowitz H, Cammisa F, Albert T, Boden SD, Hilibrand A, Goldberg H, Berven S, An H. Surgical versus nonsurgical therapy for lumbar spinal stenosis. N Engl J Med. 2008 Feb 21; 358(8):794-810. PMID: 18287602.
      View in: PubMed
    177. Natarajan RN, Williams JR, Lavender SA, An HS, Anderson GB. Relationship between disc injury and manual lifting: a poroelastic finite element model study. Proc Inst Mech Eng H. 2008 Feb; 222(2):195-207. PMID: 18441755.
      View in: PubMed
    178. Yamada M, Akeda K, Asanuma K, Thonar EJ, An HS, Uchida A, Masuda K. Effect of osteogenic protein-1 on the matrix metabolism of bovine tendon cells. J Orthop Res. 2008 Jan; 26(1):42-8. PMID: 17676621.
      View in: PubMed
    179. Patel KP, Sandy JD, Akeda K, Miyamoto K, Chujo T, An HS, Masuda K. Aggrecanases and aggrecanase-generated fragments in the human intervertebral disc at early and advanced stages of disc degeneration. Spine (Phila Pa 1976). 2007 Nov 01; 32(23):2596-603. PMID: 17978660.
      View in: PubMed
    180. Zhang Y, Anderson DG, Phillips FM, Thonar EJ, He TC, Pietryla D, An HS. Comparative effects of bone morphogenetic proteins and Sox9 overexpression on matrix accumulation by bovine anulus fibrosus cells: implications for anular repair. Spine (Phila Pa 1976). 2007 Nov 01; 32(23):2515-20. PMID: 17978648.
      View in: PubMed
    181. Kim KW, Ha KY, Lee JS, Rhyu KW, An HS, Woo YK. The apoptotic effects of oxidative stress and antiapoptotic effects of caspase inhibitors on rat notochordal cells. Spine (Phila Pa 1976). 2007 Oct 15; 32(22):2443-8. PMID: 18090083.
      View in: PubMed
    182. Samartzis D, Marco RA, Jenis LG, Khanna N, Banco RJ, Goldberg EJ, An HS. Characterization of graft subsidence in anterior cervical discectomy and fusion with rigid anterior plate fixation. Am J Orthop (Belle Mead NJ). 2007 Aug; 36(8):421-7. PMID: 17849027.
      View in: PubMed
    183. Ochia RS, Inoue N, Takatori R, Andersson GB, An HS. In vivo measurements of lumbar segmental motion during axial rotation in asymptomatic and chronic low back pain male subjects. Spine (Phila Pa 1976). 2007 Jun 01; 32(13):1394-9. PMID: 17545906.
      View in: PubMed
    184. Imai Y, Miyamoto K, An HS, Thonar EJ, Andersson GB, Masuda K. Recombinant human osteogenic protein-1 upregulates proteoglycan metabolism of human anulus fibrosus and nucleus pulposus cells. Spine (Phila Pa 1976). 2007 May 20; 32(12):1303-9; discussion 1310. PMID: 17515818.
      View in: PubMed
    185. Imai Y, Okuma M, An HS, Nakagawa K, Yamada M, Muehleman C, Thonar E, Masuda K. Restoration of disc height loss by recombinant human osteogenic protein-1 injection into intervertebral discs undergoing degeneration induced by an intradiscal injection of chondroitinase ABC. Spine (Phila Pa 1976). 2007 May 15; 32(11):1197-205. PMID: 17495776.
      View in: PubMed
    186. Aoki Y, An HS, Takahashi K, Miyamoto K, Lenz ME, Moriya H, Masuda K. Axonal growth potential of lumbar dorsal root ganglion neurons in an organ culture system: response of nerve growth factor-sensitive neurons to neuronal injury and an inflammatory cytokine. Spine (Phila Pa 1976). 2007 Apr 15; 32(8):857-63. PMID: 17426629.
      View in: PubMed
    187. Abe Y, Akeda K, An HS, Aoki Y, Pichika R, Muehleman C, Kimura T, Masuda K. Proinflammatory cytokines stimulate the expression of nerve growth factor by human intervertebral disc cells. Spine (Phila Pa 1976). 2007 Mar 15; 32(6):635-42. PMID: 17413467.
      View in: PubMed
    188. Turner TM, Urban RM, Singh K, Hall DJ, Renner SM, Lim TH, Tomlinson MJ, An HS. Vertebroplasty comparing injectable calcium phosphate cement compared with polymethylmethacrylate in a unique canine vertebral body large defect model. Spine J. 2008 May-Jun; 8(3):482-7. PMID: 18455113.
      View in: PubMed
    189. Akeda K, An HS, Pichika R, Patel K, Muehleman C, Nakagawa K, Uchida A, Masuda K. The expression of NG2 proteoglycan in the human intervertebral disc. Spine (Phila Pa 1976). 2007 Feb 01; 32(3):306-14. PMID: 17268261.
      View in: PubMed
    190. Ahn NU, Ahn UM, Ipsen B, An HS. Mechanical neck pain and cervicogenic headache. Neurosurgery. 2007 Jan; 60(1 Supp1 1):S21-7. PMID: 17204881.
      View in: PubMed
    191. Chujo T, An HS, Akeda K, Miyamoto K, Muehleman C, Attawia M, Andersson G, Masuda K. Effects of growth differentiation factor-5 on the intervertebral disc--in vitro bovine study and in vivo rabbit disc degeneration model study. Spine (Phila Pa 1976). 2006 Dec 01; 31(25):2909-17. PMID: 17139221.
      View in: PubMed
    192. Zhang Y, Kerns JM, Anderson DG, Lee YS, Chen EY, Tannoury C, An HS. Sensory neurons and fibers from multiple spinal cord levels innervate the rabbit lumbar disc. Am J Phys Med Rehabil. 2006 Nov; 85(11):865-71. PMID: 17079958.
      View in: PubMed
    193. Miyamoto K, Masuda K, Kim JG, Inoue N, Akeda K, Andersson GB, An HS. Intradiscal injections of osteogenic protein-1 restore the viscoelastic properties of degenerated intervertebral discs. Spine J. 2006 Nov-Dec; 6(6):692-703. PMID: 17088200.
      View in: PubMed
    194. An HS, Masuda K, Inoue N. Intervertebral disc degeneration: biological and biomechanical factors. J Orthop Sci. 2006 Oct; 11(5):541-52. PMID: 17013747.
      View in: PubMed
    195. Aoki Y, Akeda K, An H, Muehleman C, Takahashi K, Moriya H, Masuda K. Nerve fiber ingrowth into scar tissue formed following nucleus pulposus extrusion in the rabbit anular-puncture disc degeneration model: effects of depth of puncture. Spine (Phila Pa 1976). 2006 Oct 01; 31(21):E774-80. PMID: 17023838.
      View in: PubMed
    196. An HS. Artificial disc replacement: progress or hype? Am J Orthop (Belle Mead NJ). 2006 Sep; 35(9):405. PMID: 17036774.
      View in: PubMed
    197. Zhang Y, An HS, Thonar EJ, Chubinskaya S, He TC, Phillips FM. Comparative effects of bone morphogenetic proteins and sox9 overexpression on extracellular matrix metabolism of bovine nucleus pulposus cells. Spine (Phila Pa 1976). 2006 Sep 01; 31(19):2173-9. PMID: 16946650.
      View in: PubMed
    198. Singh K, An HS. Motion preservation technologies: alternatives to spinal fusion. Am J Orthop (Belle Mead NJ). 2006 Sep; 35(9):411-6. PMID: 17036776.
      View in: PubMed
    199. Ochia RS, Inoue N, Renner SM, Lorenz EP, Lim TH, Andersson GB, An HS. Three-dimensional in vivo measurement of lumbar spine segmental motion. Spine (Phila Pa 1976). 2006 Aug 15; 31(18):2073-8. PMID: 16915091.
      View in: PubMed
    200. An H, Phillips FM. The future of spinal fusion. Orthopedics. 2006 08; 29(8):683-4. PMID: 16924859.
      View in: PubMed
    201. Masuda K, An HS. Prevention of disc degeneration with growth factors. Eur Spine J. 2006 Aug; 15 Suppl 3:S422-32. PMID: 16865380.
      View in: PubMed
    202. Renner SM, Natarajan RN, Patwardhan AG, Havey RM, Voronov LI, Guo BY, Andersson GB, An HS. Novel model to analyze the effect of a large compressive follower pre-load on range of motions in a lumbar spine. J Biomech. 2007; 40(6):1326-32. PMID: 16843473.
      View in: PubMed
    203. Akeda K, An HS, Okuma M, Attawia M, Miyamoto K, Thonar EJ, Lenz ME, Sah RL, Masuda K. Platelet-rich plasma stimulates porcine articular chondrocyte proliferation and matrix biosynthesis. Osteoarthritis Cartilage. 2006 Dec; 14(12):1272-80. PMID: 16820306.
      View in: PubMed
    204. Aota Y, An HS, Imai Y, Thonar EJ, Muehleman C, Masuda K. Comparison of cellular response in bovine intervertebral disc cells and articular chondrocytes: effects .of lipopolysaccharide on proteoglycan metabolism. Cell Tissue Res. 2006 Dec; 326(3):787-93. PMID: 16788835.
      View in: PubMed
    205. Akeda K, An HS, Pichika R, Attawia M, Thonar EJ, Lenz ME, Uchida A, Masuda K. Platelet-rich plasma (PRP) stimulates the extracellular matrix metabolism of porcine nucleus pulposus and anulus fibrosus cells cultured in alginate beads. Spine (Phila Pa 1976). 2006 Apr 20; 31(9):959-66. PMID: 16641770.
      View in: PubMed
    206. Singh K, Samartzis D, Vaccaro AR, Andersson GB, An HS, Heller JG. Current concepts in the management of metastatic spinal disease. The role of minimally-invasive approaches. J Bone Joint Surg Br. 2006 Apr; 88(4):434-42. PMID: 16567775.
      View in: PubMed
    207. Masuda K, Imai Y, Okuma M, Muehleman C, Nakagawa K, Akeda K, Thonar E, Andersson G, An HS. Osteogenic protein-1 injection into a degenerated disc induces the restoration of disc height and structural changes in the rabbit anular puncture model. Spine (Phila Pa 1976). 2006 Apr 01; 31(7):742-54. PMID: 16582847.
      View in: PubMed
    208. An HS, Masuda K. Relevance of in vitro and in vivo models for intervertebral disc degeneration. J Bone Joint Surg Am. 2006 Apr; 88 Suppl 2:88-94. PMID: 16595451.
      View in: PubMed
    209. Andersson GB, An HS, Oegema TR, Setton LA. Intervertebral disc degeneration. Summary of an AAOS/NIH/ORS workshop, September 2005. J Bone Joint Surg Am. 2006 Apr; 88(4):895-9. PMID: 16595482.
      View in: PubMed
    210. Andersson GB, An HS, Oegema TR, Setton LA. Directions for future research. J Bone Joint Surg Am. 2006 Apr; 88 Suppl 2:110-4. PMID: 16595455.
      View in: PubMed
    211. An HS, Seldomridge JA. Spinal infections: diagnostic tests and imaging studies. Clin Orthop Relat Res. 2006 Mar; 444:27-33. PMID: 16523124.
      View in: PubMed
    212. Singh K, Samartzis D, Pennington WT, Wise J, An HS. Unusual presentation of a paraspinal mass with involvement of a lumbar facet joint and the epidural space. Orthopedics. 2006 03; 29(3):265-7. PMID: 16539207.
      View in: PubMed
    213. Miyamoto K, Masuda K, Inoue N, Okuma M, Muehleman C, An HS. Anti-adhesion properties of a thrombin-based hemostatic gelatin in a canine laminectomy model: a biomechanical, biochemical, and histologic study. Spine (Phila Pa 1976). 2006 Feb 15; 31(4):E91-7. PMID: 16481942.
      View in: PubMed
    214. Singh K, Samartzis D, Heller JG, An HS, Vaccaro AR. The management of complex soft-tissue defects after spinal instrumentation. J Bone Joint Surg Br. 2006 Jan; 88(1):8-15. PMID: 16365112.
      View in: PubMed
    215. Zhang Y, Li Z, Thonar EJ, An HS, He TC, Pietryla D, Phillips FM. Transduced bovine articular chondrocytes affect the metabolism of cocultured nucleus pulposus cells in vitro: implications for chondrocyte transplantation into the intervertebral disc. Spine (Phila Pa 1976). 2005 Dec 01; 30(23):2601-7. PMID: 16319745.
      View in: PubMed
    216. Singh K, Samartzis D, Vaccaro AR, Nassr A, Andersson GB, Yoon ST, Phillips FM, Goldberg EJ, An HS. Congenital lumbar spinal stenosis: a prospective, control-matched, cohort radiographic analysis. Spine J. 2005 Nov-Dec; 5(6):615-22. PMID: 16291100.
      View in: PubMed
    217. Singh K, Masuda K, An HS. Animal models for human disc degeneration. Spine J. 2005 Nov-Dec; 5(6 Suppl):267S-279S. PMID: 16291123.
      View in: PubMed
    218. Shen FH, Samartzis D, An HS. Cell technologies for spinal fusion. Spine J. 2005 Nov-Dec; 5(6 Suppl):231S-239S. PMID: 16291118.
      View in: PubMed
    219. Anderson DG, Yoon T, Shen F, Kang J, Phillips F, An H. Summary statement: biologic repair or regeneration of the intervertebral disc. Spine J. 2005 Nov-Dec; 5(6 Suppl):304S. PMID: 16291127.
      View in: PubMed
    220. Miyamoto K, An HS, Sah RL, Akeda K, Okuma M, Otten L, Thonar EJ, Masuda K. Exposure to pulsed low intensity ultrasound stimulates extracellular matrix metabolism of bovine intervertebral disc cells cultured in alginate beads. Spine (Phila Pa 1976). 2005 Nov 01; 30(21):2398-405. PMID: 16261116.
      View in: PubMed
    221. Lieberman I, Goins M, An H, Phillips F. Summary statement: kyphoplasty and nucleus pulposus prosthesis. Spine J. 2005 Nov-Dec; 5(6 Suppl):325S. PMID: 16291130.
      View in: PubMed
    222. An HS, Phillips FM. Editorial: are spine biologics the future in spinal surgery? Spine J. 2005 Nov-Dec; 5(6 Suppl):207S-208S. PMID: 16291114.
      View in: PubMed
    223. Singh K, Heller JG, Samartzis D, Price JS, An HS, Yoon ST, Rhee J, Ledlie JT, Phillips FM. Open vertebral cement augmentation combined with lumbar decompression for the operative management of thoracolumbar stenosis secondary to osteoporotic burst fractures. J Spinal Disord Tech. 2005 Oct; 18(5):413-9. PMID: 16189453.
      View in: PubMed
    224. Singh K, An HS, Samartzis D, Nassr A, Provus J, Hickey M, Andersson GB. A prospective cohort analysis of adjacent vertebral body bone mineral density in lumbar surgery patients with or without instrumented posterolateral fusion: a 9- to 12-year follow-up. Spine (Phila Pa 1976). 2005 Aug 01; 30(15):1750-5. PMID: 16094277.
      View in: PubMed
    225. Samartzis D, Shen FH, Goldberg EJ, An HS. Is autograft the gold standard in achieving radiographic fusion in one-level anterior cervical discectomy and fusion with rigid anterior plate fixation? Spine (Phila Pa 1976). 2005 Aug 01; 30(15):1756-61. PMID: 16094278.
      View in: PubMed
    226. Singh K, Samartzis D, An HS. Neurofibromatosis type I with severe dystrophic kyphoscoliosis and its operative management via a simultaneous anterior-posterior approach: a case report and review of the literature. Spine J. 2005 Jul-Aug; 5(4):461-6. PMID: 15996618.
      View in: PubMed
    227. Kim KW, Ha KY, Park JB, Woo YK, Chung HN, An HS. Expressions of membrane-type I matrix metalloproteinase, Ki-67 protein, and type II collagen by chondrocytes migrating from cartilage endplate into nucleus pulposus in rat intervertebral discs: a cartilage endplate-fracture model using an intervertebral disc organ culture. Spine (Phila Pa 1976). 2005 Jun 15; 30(12):1373-8. PMID: 15959365.
      View in: PubMed
    228. Kim KW, Kim YS, Ha KY, Woo YK, Park JB, Park WS, An HS. An autocrine or paracrine Fas-mediated counterattack: a potential mechanism for apoptosis of notochordal cells in intact rat nucleus pulposus. Spine (Phila Pa 1976). 2005 Jun 01; 30(11):1247-51. PMID: 15928547.
      View in: PubMed
    229. Zhang Y, An HS, Toofanfard M, Li Z, Andersson GB, Thonar EJ. Low-dose interleukin-1 partially counteracts osteogenic protein-1-induced proteoglycan synthesis by adult bovine intervertebral disk cells. Am J Phys Med Rehabil. 2005 May; 84(5):322-9. PMID: 15829778.
      View in: PubMed
    230. Hasegawa T, Inufusa A, Imai Y, Mikawa Y, Lim TH, An HS. Hydroxyapatite-coating of pedicle screws improves resistance against pull-out force in the osteoporotic canine lumbar spine model: a pilot study. Spine J. 2005 May-Jun; 5(3):239-43. PMID: 15863077.
      View in: PubMed
    231. Takegami K, An HS, Kumano F, Chiba K, Thonar EJ, Singh K, Masuda K. Osteogenic protein-1 is most effective in stimulating nucleus pulposus and annulus fibrosus cells to repair their matrix after chondroitinase ABC-induced in vitro chemonucleolysis. Spine J. 2005 May-Jun; 5(3):231-8. PMID: 15863076.
      View in: PubMed
    232. Aota Y, An HS, Homandberg G, Thonar EJ, Andersson GB, Pichika R, Masuda K. Differential effects of fibronectin fragment on proteoglycan metabolism by intervertebral disc cells: a comparison with articular chondrocytes. Spine (Phila Pa 1976). 2005 Apr 01; 30(7):722-8. PMID: 15803072.
      View in: PubMed
    233. Samartzis D, Khanna N, Shen FH, An HS. Update on bone morphogenetic proteins and their application in spine surgery. J Am Coll Surg. 2005 Feb; 200(2):236-48. PMID: 15664100.
      View in: PubMed
    234. Shuff C, An HS. Artificial disc replacement: the new solution for discogenic low back pain? Am J Orthop (Belle Mead NJ). 2005 Jan; 34(1):8-12. PMID: 15707133.
      View in: PubMed
    235. An HS. Focus on the spine. Am J Orthop (Belle Mead NJ). 2005 Jan; 34(1):7. PMID: 15707132.
      View in: PubMed
    236. Masuda K, Aota Y, Muehleman C, Imai Y, Okuma M, Thonar EJ, Andersson GB, An HS. A novel rabbit model of mild, reproducible disc degeneration by an anulus needle puncture: correlation between the degree of disc injury and radiological and histological appearances of disc degeneration. Spine (Phila Pa 1976). 2005 Jan 01; 30(1):5-14. PMID: 15626974.
      View in: PubMed
    237. An HS, Takegami K, Kamada H, Nguyen CM, Thonar EJ, Singh K, Andersson GB, Masuda K. Intradiscal administration of osteogenic protein-1 increases intervertebral disc height and proteoglycan content in the nucleus pulposus in normal adolescent rabbits. Spine (Phila Pa 1976). 2005 Jan 01; 30(1):25-31; discussion 31-2. PMID: 15626976.
      View in: PubMed
    238. Masuda K, Oegema TR, An HS. Growth factors and treatment of intervertebral disc degeneration. Spine (Phila Pa 1976). 2004 Dec 01; 29(23):2757-69. PMID: 15564925.
      View in: PubMed
    239. An HS, Anderson PA, Haughton VM, Iatridis JC, Kang JD, Lotz JC, Natarajan RN, Oegema TR, Roughley P, Setton LA, Urban JP, Videman T, Andersson GB, Weinstein JN. Introduction: disc degeneration: summary. Spine (Phila Pa 1976). 2004 Dec 01; 29(23):2677-8. PMID: 15564916.
      View in: PubMed
    240. Shen FH, Samartzis D, Jenis LG, An HS. Rheumatoid arthritis: evaluation and surgical management of the cervical spine. Spine J. 2004 Nov-Dec; 4(6):689-700. PMID: 15541704.
      View in: PubMed
    241. Masuda K, An HS. Growth factors and the intervertebral disc. Spine J. 2004 Nov-Dec; 4(6 Suppl):330S-340S. PMID: 15541686.
      View in: PubMed
    242. Shen FH, Samartzis D, Khanna N, Goldberg EJ, An HS. Comparison of clinical and radiographic outcome in instrumented anterior cervical discectomy and fusion with or without direct uncovertebral joint decompression. Spine J. 2004 Nov-Dec; 4(6):629-35. PMID: 15541694.
      View in: PubMed
    243. Samartzis D, Shen FH, Lyon C, Phillips M, Goldberg EJ, An HS. Does rigid instrumentation increase the fusion rate in one-level anterior cervical discectomy and fusion? Spine J. 2004 Nov-Dec; 4(6):636-43. PMID: 15541695.
      View in: PubMed
    244. Zhang Y, An HS, Song S, Toofanfard M, Masuda K, Andersson GB, Thonar EJ. Growth factor osteogenic protein-1: differing effects on cells from three distinct zones in the bovine intervertebral disc. Am J Phys Med Rehabil. 2004 Jul; 83(7):515-21. PMID: 15213475.
      View in: PubMed
    245. Renner SM, Lim TH, Kim WJ, Katolik L, An HS, Andersson GB. Augmentation of pedicle screw fixation strength using an injectable calcium phosphate cement as a function of injection timing and method. Spine (Phila Pa 1976). 2004 Jun 01; 29(11):E212-6. PMID: 15167670.
      View in: PubMed
    246. Kim KW, Chung JW, Park JB, Song SW, Ha KY, An HS. The course of the nerve root in the neural foramen and its relationship with foraminal entrapment or impingement in adult patients with lumbar isthmic spondylolisthesis and radicular pain. J Spinal Disord Tech. 2004 Jun; 17(3):220-5. PMID: 15167338.
      View in: PubMed
    247. Singh K, Vaccaro AR, Kim J, Lorenz EP, Lim TH, An HS. Enhancement of stability following anterior cervical corpectomy: a biomechanical study. Spine (Phila Pa 1976). 2004 Apr 15; 29(8):845-9. PMID: 15082982.
      View in: PubMed
    248. An HS, Singh K, Vaccaro AR, Wang G, Yoshida H, Eck J, McGrady L, Lim TH. Biomechanical evaluation of contemporary posterior spinal internal fixation configurations in an unstable burst-fracture calf spine model: special references of hook configurations and pedicle screws. Spine (Phila Pa 1976). 2004 Feb 01; 29(3):257-62. PMID: 14752346.
      View in: PubMed
    249. Samartzis D, Shen FH, Matthews DK, Yoon ST, Goldberg EJ, An HS. Comparison of allograft to autograft in multilevel anterior cervical discectomy and fusion with rigid plate fixation. Spine J. 2003 Nov-Dec; 3(6):451-9. PMID: 14609689.
      View in: PubMed
    250. Singh K, Vaccaro AR, Kim J, Lorenz EP, Lim TH, An HS. Biomechanical comparison of cervical spine reconstructive techniques after a multilevel corpectomy of the cervical spine. Spine (Phila Pa 1976). 2003 Oct 15; 28(20):2352-8; discussion 2358. PMID: 14560082.
      View in: PubMed
    251. Phillips FM, An H, Kang JD, Boden SD, Weinstein J. Biologic treatment for intervertebral disc degeneration: summary statement. Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S99. PMID: 12897482.
      View in: PubMed
    252. Weinstein JN, Boden SD, An H. Emerging technology in spine: should we rethink the past or move forward in spite of the past? Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S1. PMID: 12897466.
      View in: PubMed
    253. Ahn NU, Ahn UM, Andersson GB, An HS. Operative treatment of the patient with neck pain. Phys Med Rehabil Clin N Am. 2003 Aug; 14(3):675-92. PMID: 12948348.
      View in: PubMed
    254. An HS, Thonar EJ, Masuda K. Biological repair of intervertebral disc. Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S86-92. PMID: 12897480.
      View in: PubMed
    255. Biyani A, Andersson GB, Chaudhary H, An HS. Intradiscal electrothermal therapy: a treatment option in patients with internal disc disruption. Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S8-14. PMID: 12897468.
      View in: PubMed
    256. Sandhu HS, Boden SD, An H, Kang J, Weinstein J. BMPs and gene therapy for spinal fusion: summary statement. Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S85. PMID: 12897479.
      View in: PubMed
    257. An H, Boden SD, Kang J, Sandhu HS, Abdu W, Weinstein J. Summary statement: emerging techniques for treatment of degenerative lumbar disc disease. Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S24-5. PMID: 12897470.
      View in: PubMed
    258. Kang JD, An H, Boden S, Phillips F, Foley K, Abdu W. Cement augmentation of osteoporotic compression fractures and intraoperative navigation: summary statement. Spine (Phila Pa 1976). 2003 Aug 01; 28(15 Suppl):S62-3. PMID: 12897476.
      View in: PubMed
    259. Natarajan RN, Garretson RB, Biyani A, Lim TH, Andersson GB, An HS. Effects of slip severity and loading directions on the stability of isthmic spondylolisthesis: a finite element model study. Spine (Phila Pa 1976). 2003 Jun 01; 28(11):1103-12. PMID: 12782976.
      View in: PubMed
    260. Kim KW, Lim TH, Kim JG, Jeong ST, Masuda K, An HS. The origin of chondrocytes in the nucleus pulposus and histologic findings associated with the transition of a notochordal nucleus pulposus to a fibrocartilaginous nucleus pulposus in intact rabbit intervertebral discs. Spine (Phila Pa 1976). 2003 May 15; 28(10):982-90. PMID: 12768135.
      View in: PubMed
    261. Riew KD, McCulloch JA, Delamarter RB, An HS, Ahn NU. Microsurgery for degenerative conditions of the cervical spine. Instr Course Lect. 2003; 52:497-508. PMID: 12690876.
      View in: PubMed
    262. An HS, Ahn NU. Posterior decompressive procedures for the cervical spine. Instr Course Lect. 2003; 52:471-7. PMID: 12690873.
      View in: PubMed
    263. Eck JC, Humphreys SC, Lim TH, Jeong ST, Kim JG, Hodges SD, An HS. Biomechanical study on the effect of cervical spine fusion on adjacent-level intradiscal pressure and segmental motion. Spine (Phila Pa 1976). 2002 Nov 15; 27(22):2431-4. PMID: 12435970.
      View in: PubMed
    264. Goldberg EJ, Singh K, Van U, Garretson R, An HS. Comparing outcomes of anterior cervical discectomy and fusion in workman's versus non-workman's compensation population. Spine J. 2002 Nov-Dec; 2(6):408-14. PMID: 14589262.
      View in: PubMed
    265. Cs-Szabo G, Ragasa-San Juan D, Turumella V, Masuda K, Thonar EJ, An HS. Changes in mRNA and protein levels of proteoglycans of the anulus fibrosus and nucleus pulposus during intervertebral disc degeneration. Spine (Phila Pa 1976). 2002 Oct 15; 27(20):2212-9. PMID: 12394896.
      View in: PubMed
    266. Nallamshetty L, Ahn NU, Ahn UM, Buchowski JM, An HS, Rose PS, Garrett ES, Erkula G, Kebaish KM, Sponseller PD. Plain radiography of the lumbosacral spine in Marfan syndrome. Spine J. 2002 Sep-Oct; 2(5):327-33. PMID: 14589463.
      View in: PubMed
    267. Lim TH, Brebach GT, Renner SM, Kim WJ, Kim JG, Lee RE, Andersson GB, An HS. Biomechanical evaluation of an injectable calcium phosphate cement for vertebroplasty. Spine (Phila Pa 1976). 2002 Jun 15; 27(12):1297-302. PMID: 12065977.
      View in: PubMed
    268. Takegami K, Thonar EJ, An HS, Kamada H, Masuda K. Osteogenic protein-1 enhances matrix replenishment by intervertebral disc cells previously exposed to interleukin-1. Spine (Phila Pa 1976). 2002 Jun 15; 27(12):1318-25. PMID: 12065981.
      View in: PubMed
    269. Lim TH, Kim JG, Fujiwara A, Yoon TT, Lee SC, Ha JW, An HS. Biomechanical evaluation of diagonal fixation in pedicle screw instrumentation. Spine (Phila Pa 1976). 2001 Nov 15; 26(22):2498-503. PMID: 11707718.
      View in: PubMed
    270. Aota Y, Onari K, An HS, Yoshikawa K. Dorsal root ganglia morphologic features in patients with herniation of the nucleus pulposus: assessment using magnetic resonance myelography and clinical correlation. Spine (Phila Pa 1976). 2001 Oct 01; 26(19):2125-32. PMID: 11698891.
      View in: PubMed
    271. Renkens KL, Payner TD, Leipzig TJ, Feuer H, Morone MA, Koers JM, Lawson KJ, Lentz R, Shuey H, Conaway GL, Andersson GB, An HS, Hickey M, Rondinone JF, Shargill NS. A multicenter, prospective, randomized trial evaluating a new hemostatic agent for spinal surgery. Spine (Phila Pa 1976). 2001 Aug 01; 26(15):1645-50. PMID: 11474348.
      View in: PubMed
    272. Fujiwara A, An HS, Lim TH, Haughton VM. Morphologic changes in the lumbar intervertebral foramen due to flexion-extension, lateral bending, and axial rotation: an in vitro anatomic and biomechanical study. Spine (Phila Pa 1976). 2001 Apr 15; 26(8):876-82. PMID: 11317109.
      View in: PubMed
    273. Lim TH, Kwon H, Jeon CH, Kim JG, Sokolowski M, Natarajan R, An HS, Andersson GB. Effect of endplate conditions and bone mineral density on the compressive strength of the graft-endplate interface in anterior cervical spine fusion. Spine (Phila Pa 1976). 2001 Apr 15; 26(8):951-6. PMID: 11317120.
      View in: PubMed
    274. Fujiwara A, Tamai K, An HS, Lim TH, Yoshida H, Kurihashi A, Saotome K. Orientation and osteoarthritis of the lumbar facet joint. Clin Orthop Relat Res. 2001 Apr; (385):88-94. PMID: 11302332.
      View in: PubMed
    275. Jenis LG, An HS, Gordin R. Foraminal stenosis of the lumbar spine: a review of 65 surgical cases. Am J Orthop (Belle Mead NJ). 2001 Mar; 30(3):205-11. PMID: 11300129.
      View in: PubMed
    276. Koh YD, Kim JO, Choi CH, An HS. Pyogenic spondylitis in an S1-S2 immobile segment. Spine (Phila Pa 1976). 2001 Mar 01; 26(5):588-9. PMID: 11242391.
      View in: PubMed
    277. Chen BH, Natarajan RN, An HS, Andersson GB. Comparison of biomechanical response to surgical procedures used for cervical radiculopathy: posterior keyhole foraminotomy versus anterior foraminotomy and discectomy versus anterior discectomy with fusion. J Spinal Disord. 2001 Feb; 14(1):17-20. PMID: 11242270.
      View in: PubMed
    278. Vaccaro AR, Sharan AD, Tuan RS, Kang JD, An HS, Morone MA, Savas PE, Hilibrand AS, Abitbol JJ. The use of biologic materials in spinal fusion. Orthopedics. 2001 Feb; 24(2):191-7; quiz 198-9. PMID: 11284605.
      View in: PubMed
    279. Tanaka N, An HS, Lim TH, Fujiwara A, Jeon CH, Haughton VM. The relationship between disc degeneration and flexibility of the lumbar spine. Spine J. 2001 Jan-Feb; 1(1):47-56. PMID: 14588368.
      View in: PubMed
    280. Do Koh Y, Lim TH, Won You J, Eck J, An HS. A biomechanical comparison of modern anterior and posterior plate fixation of the cervical spine. Spine (Phila Pa 1976). 2001 Jan 01; 26(1):15-21. PMID: 11148640.
      View in: PubMed
    281. An HS, Andersson G, Lieberman I, Riew D, Transfeldt E. Minimally invasive surgery for lumbar degenerative disorders: Part II. Degenerative disc disease and lumbar stenosis. Am J Orthop (Belle Mead NJ). 2000 Dec; 29(12):937-42. PMID: 11140348.
      View in: PubMed
    282. Fujiwara A, Lim TH, An HS, Tanaka N, Jeon CH, Andersson GB, Haughton VM. The effect of disc degeneration and facet joint osteoarthritis on the segmental flexibility of the lumbar spine. Spine (Phila Pa 1976). 2000 Dec 01; 25(23):3036-44. PMID: 11145815.
      View in: PubMed
    283. An HS, Andersson G, Lieberman I, Riew D, Transfeldt E. Minimally invasive surgery for lumbar degenerative disorders. Part I. Indications and patient selection; surgical procedures for herniated discs. Am J Orthop (Belle Mead NJ). 2000 Nov; 29(11):856-62. PMID: 11079103.
      View in: PubMed
    284. Fujiwara A, Tamai K, Yoshida H, Kurihashi A, Saotome K, An HS, Lim TH. Anatomy of the iliolumbar ligament. Clin Orthop Relat Res. 2000 Nov; (380):167-72. PMID: 11064987.
      View in: PubMed
    285. Jenis LG, An HS, Simpson JM. A prospective comparison of the standard and reverse robinson cervical grafting techniques: radiographic and clinical analyses. J Spinal Disord. 2000 Oct; 13(5):369-73. PMID: 11052344.
      View in: PubMed
    286. Fujiwara A, Tamai K, An HS, Kurihashi T, Lim TH, Yoshida H, Saotome K. The relationship between disc degeneration, facet joint osteoarthritis, and stability of the degenerative lumbar spine. J Spinal Disord. 2000 Oct; 13(5):444-50. PMID: 11052356.
      View in: PubMed
    287. Jenis LG, An HS. Neck pain secondary to radiculopathy of the fourth cervical root: an analysis of 12 surgically treated patients. J Spinal Disord. 2000 Aug; 13(4):345-9. PMID: 10941895.
      View in: PubMed
    288. Jenis LG, An HS, Stein R, Young B. Prospective comparison of the effect of direct current electrical stimulation and pulsed electromagnetic fields on instrumented posterolateral lumbar arthrodesis. J Spinal Disord. 2000 Aug; 13(4):290-6. PMID: 10941887.
      View in: PubMed
    289. Hasegawa T, An HS, Inufusa A, Mikawa Y, Watanabe R. The effect of age on inflammatory responses and nerve root injuries after lumbar disc herniation: an experimental study in a canine model. Spine (Phila Pa 1976). 2000 Apr 15; 25(8):937-40. PMID: 10767805.
      View in: PubMed
    290. Natarajan RN, Chen BH, An HS, Andersson GB. Anterior cervical fusion: a finite element model study on motion segment stability including the effect of osteoporosis. Spine (Phila Pa 1976). 2000 Apr 15; 25(8):955-61. PMID: 10767808.
      View in: PubMed
    291. Lee SW, Lim TH, You JW, An HS. Biomechanical effect of anterior grafting devices on the rotational stability of spinal constructs. J Spinal Disord. 2000 Apr; 13(2):150-5. PMID: 10780691.
      View in: PubMed
    292. Jenis LG, An HS. Spine update. Lumbar foraminal stenosis. Spine (Phila Pa 1976). 2000 Feb 01; 25(3):389-94. PMID: 10703115.
      View in: PubMed
    293. Fujiwara A, Tamai K, An HS, Shimizu K, Yoshida H, Saotome K. The interspinous ligament of the lumbar spine. Magnetic resonance images and their clinical significance. Spine (Phila Pa 1976). 2000 Feb 01; 25(3):358-63. PMID: 10703110.
      View in: PubMed
    294. Tanaka N, Fujimoto Y, An HS, Ikuta Y, Yasuda M. The anatomic relation among the nerve roots, intervertebral foramina, and intervertebral discs of the cervical spine. Spine (Phila Pa 1976). 2000 Feb 01; 25(3):286-91. PMID: 10703098.
      View in: PubMed
    295. Haughton VM, Schmidt TA, Keele K, An HS, Lim TH. Flexibility of lumbar spinal motion segments correlated to type of tears in the annulus fibrosus. J Neurosurg. 2000 Jan; 92(1 Suppl):81-6. PMID: 10616062.
      View in: PubMed
    296. An HS, Wise JJ, Xu R. Anatomy of the cervicothoracic junction: a study of cadaveric dissection, cryomicrotomy, and magnetic resonance imaging. J Spinal Disord. 1999 Dec; 12(6):519-25. PMID: 10598995.
      View in: PubMed
    297. An HS, Simpson JM, Stein R. Outpatient laminotomy and discectomy. J Spinal Disord. 1999 Jun; 12(3):192-6. PMID: 10382771.
      View in: PubMed
    298. Jenis LG, Dunn EJ, An HS. Metastatic disease of the cervical spine. A review. Clin Orthop Relat Res. 1999 Feb; (359):89-103. PMID: 10078132.
      View in: PubMed
    299. Fujiwara A, Tamai K, Yamato M, An HS, Yoshida H, Saotome K, Kurihashi A. The relationship between facet joint osteoarthritis and disc degeneration of the lumbar spine: an MRI study. Eur Spine J. 1999; 8(5):396-401. PMID: 10552323.
      View in: PubMed
    300. An HS. Cervical spine trauma. Spine (Phila Pa 1976). 1998 Dec 15; 23(24):2713-29. PMID: 9879097.
      View in: PubMed
    301. Schmidt TA, An HS, Lim TH, Nowicki BH, Haughton VM. The stiffness of lumbar spinal motion segments with a high-intensity zone in the anulus fibrosus. Spine (Phila Pa 1976). 1998 Oct 15; 23(20):2167-73. PMID: 9802156.
      View in: PubMed
    302. Humphreys SC, An HS, Eck JC, Coppes M, Lim TH, Estkowski L. Oblique MRI as a useful adjunct in evaluation of cervical foraminal impingement. J Spinal Disord. 1998 Aug; 11(4):295-9. PMID: 9726297.
      View in: PubMed
    303. Nguyen-minh C, Haughton VM, An HS, You JW, Wook S, Ho KC. Contrast media of high and low molecular weights in the detection of recurrent herniated disks. AJNR Am J Neuroradiol. 1998 May; 19(5):889-93. PMID: 9613505.
      View in: PubMed
    304. An HS, Benoit PR. Saline injection technique to confirm pedicle screw path: a cadaveric study. Am J Orthop (Belle Mead NJ). 1998 May; 27(5):362-5. PMID: 9604108.
      View in: PubMed
    305. Andreshak TG, An HS, Hall J, Stein B. Lumbar spine surgery in the obese patient. J Spinal Disord. 1997 Oct; 10(5):376-9. PMID: 9355052.
      View in: PubMed
    306. Lim TH, Eck JC, An HS, McGrady LM, Harris GF, Haughton VM. A noninvasive, three-dimensional spinal motion analysis method. Spine (Phila Pa 1976). 1997 Sep 01; 22(17):1996-2000. PMID: 9306529.
      View in: PubMed
    307. An HS, Coppes MA. Posterior cervical fixation for fracture and degenerative disc disease. Clin Orthop Relat Res. 1997 Feb; (335):101-11. PMID: 9020210.
      View in: PubMed
    308. Lim TH, An HS, Hong JH, Ahn JY, You JW, Eck J, McGrady LM. Biomechanical evaluation of anterior and posterior fixations in an unstable calf spine model. Spine (Phila Pa 1976). 1997 Feb 01; 22(3):261-6. PMID: 9051887.
      View in: PubMed
    309. Vaccaro AR, An HS, Betz RR, Cotler JM, Balderston RA. The management of acute spinal trauma: prehospital and in-hospital emergency care. Instr Course Lect. 1997; 46:113-25. PMID: 9143955.
      View in: PubMed
    310. An HS. Cervical root entrapment. Hand Clin. 1996 Nov; 12(4):719-30. PMID: 8953291.
      View in: PubMed
    311. Inufusa A, An HS, Lim TH, Hasegawa T, Haughton VM, Nowicki BH. Anatomic changes of the spinal canal and intervertebral foramen associated with flexion-extension movement. Spine (Phila Pa 1976). 1996 Nov 01; 21(21):2412-20. PMID: 8923625.
      View in: PubMed
    312. Infusa A, An HS, Glover JM, McGrady L, Lim TH, Riley LH. The ideal amount of lumbar foraminal distraction for pedicle screw instrumentation. Spine (Phila Pa 1976). 1996 Oct 01; 21(19):2218-23. PMID: 8902965.
      View in: PubMed
    313. Nowicki BH, Haughton VM, Schmidt TA, Lim TH, An HS, Riley LH, Yu L, Hong JW. Occult lumbar lateral spinal stenosis in neural foramina subjected to physiologic loading. AJNR Am J Neuroradiol. 1996 Oct; 17(9):1605-14. PMID: 8896609.
      View in: PubMed
    314. Lim TH, Eck JC, An HS, Hong JH, Ahn JY, You JW. Biomechanics of transfixation in pedicle screw instrumentation. Spine (Phila Pa 1976). 1996 Oct 01; 21(19):2224-9. PMID: 8902966.
      View in: PubMed
    315. Ebraheim NA, An HS, Xu R, Ahmad M, Yeasting RA. The quantitative anatomy of the cervical nerve root groove and the intervertebral foramen. Spine (Phila Pa 1976). 1996 Jul 15; 21(14):1619-23. PMID: 8839462.
      View in: PubMed
    316. Hasegawa T, Mikawa Y, Watanabe R, An HS. Morphometric analysis of the lumbosacral nerve roots and dorsal root ganglia by magnetic resonance imaging. Spine (Phila Pa 1976). 1996 May 01; 21(9):1005-9. PMID: 8724082.
      View in: PubMed
    317. Lim TH, An HS, Hasegawa T, McGrady L, Hasanoglu KY, Wilson CR. Prediction of fatigue screw loosening in anterior spinal fixation using dual energy x-ray absorptiometry. Spine (Phila Pa 1976). 1995 Dec 01; 20(23):2565-8; discussion 2569. PMID: 8610251.
      View in: PubMed
    318. An HS, Simpson JM, Glover JM, Stephany J. Comparison between allograft plus demineralized bone matrix versus autograft in anterior cervical fusion. A prospective multicenter study. Spine (Phila Pa 1976). 1995 Oct 15; 20(20):2211-6. PMID: 8545714.
      View in: PubMed
    319. Toth JM, An HS, Lim TH, Ran Y, Weiss NG, Lundberg WR, Xu RM, Lynch KL. Evaluation of porous biphasic calcium phosphate ceramics for anterior cervical interbody fusion in a caprine model. Spine (Phila Pa 1976). 1995 Oct 15; 20(20):2203-10. PMID: 8545713.
      View in: PubMed
    320. An HS, Lim TH, You JW, Hong JH, Eck J, McGrady L. Biomechanical evaluation of anterior thoracolumbar spinal instrumentation. Spine (Phila Pa 1976). 1995 Sep 15; 20(18):1979-83. PMID: 8578371.
      View in: PubMed
    321. An HS, Andreshak TG, Nguyen C, Williams A, Daniels D. Can we distinguish between benign versus malignant compression fractures of the spine by magnetic resonance imaging? Spine (Phila Pa 1976). 1995 Aug 15; 20(16):1776-82. PMID: 7502133.
      View in: PubMed
    322. Vaccaro AR, Rizzolo SJ, Balderston RA, Allardyce TJ, Garfin SR, Dolinskas C, An HS. Placement of pedicle screws in the thoracic spine. Part II: An anatomical and radiographic assessment. J Bone Joint Surg Am. 1995 Aug; 77(8):1200-6. PMID: 7642665.
      View in: PubMed
    323. Lim TH, An HS, Evanich C, Hasanoglu KY, McGrady L, Wilson CR. Strength of anterior vertebral screw fixation in relationship to bone mineral density. J Spinal Disord. 1995 Apr; 8(2):121-5. PMID: 7606118.
      View in: PubMed
    324. An HS, Lynch K, Toth J. Prospective comparison of autograft vs. allograft for adult posterolateral lumbar spine fusion: differences among freeze-dried, frozen, and mixed grafts. J Spinal Disord. 1995 Apr; 8(2):131-5. PMID: 7606120.
      View in: PubMed
    325. Nguyen C, Haughton VM, Ho KC, An HS, Myklebust JB, Hasegawa T, Xu R, Harb JM. Contrast enhancement in spinal nerve roots: an experimental study. AJNR Am J Neuroradiol. 1995 Feb; 16(2):265-8. PMID: 7726071.
      View in: PubMed
    326. Hasegawa T, An HS, Haughton VM, Nowicki BH. Lumbar foraminal stenosis: critical heights of the intervertebral discs and foramina. A cryomicrotome study in cadavera. J Bone Joint Surg Am. 1995 Jan; 77(1):32-8. PMID: 7822353.
      View in: PubMed
    327. An HS, Vaccaro A, Cotler JM, Lin S. Spinal disorders at the cervicothoracic junction. Spine (Phila Pa 1976). 1994 Nov 15; 19(22):2557-64. PMID: 7855681.
      View in: PubMed
    328. An HS, Xu R, Lim TH, McGrady L, Wilson C. Prediction of bone graft strength using dual-energy radiographic absorptiometry. Spine (Phila Pa 1976). 1994 Oct 15; 19(20):2358-62; discussion 2362-3. PMID: 7846582.
      View in: PubMed
    329. An HS, Silveri CP, Simpson JM, File P, Simmons C, Simeone FA, Balderston RA. Comparison of smoking habits between patients with surgically confirmed herniated lumbar and cervical disc disease and controls. J Spinal Disord. 1994 Oct; 7(5):369-73. PMID: 7819635.
      View in: PubMed
    330. An HS, Nguyen C, Haughton VM, Ho KC, Hasegawa T. Gadolinium-enhancement characteristics of magnetic resonance imaging in distinguishing herniated intervertebral disc versus scar in dogs. Spine (Phila Pa 1976). 1994 Sep 15; 19(18):2089-94; discussion 2095. PMID: 7825051.
      View in: PubMed
    331. An HS, Haughton VM. Nondiscogenic lumbar radiculopathy: imaging considerations. Semin Ultrasound CT MR. 1993 Dec; 14(6):414-24. PMID: 8297634.
      View in: PubMed
    332. Simpson JM, Silveri CP, Balderston RA, Simeone FA, An HS. The results of operations on the lumbar spine in patients who have diabetes mellitus. J Bone Joint Surg Am. 1993 Dec; 75(12):1823-9. PMID: 8258554.
      View in: PubMed
    333. Hasegawa T, An HS, Haughton VM. Imaging anatomy of the lateral lumbar spinal canal. Semin Ultrasound CT MR. 1993 Dec; 14(6):404-13. PMID: 8297633.
      View in: PubMed
    334. Vaccaro AR, An HS, Cotler JM, Ahmad S, Jordan AG. Recurrent cervical subluxations in a patient with gout and endstage renal disease. Orthopedics. 1993 Nov; 16(11):1273-6. PMID: 8290403.
      View in: PubMed
    335. An HS, Evanich CJ, Nowicki BH, Haughton VM. Ideal thickness of Smith-Robinson graft for anterior cervical fusion. A cadaveric study with computed tomographic correlation. Spine (Phila Pa 1976). 1993 Oct 15; 18(14):2043-7. PMID: 8272957.
      View in: PubMed
    336. Simpson JM, Silveri CP, Simeone FA, Balderston RA, An HS. Thoracic disc herniation. Re-evaluation of the posterior approach using a modified costotransversectomy. Spine (Phila Pa 1976). 1993 Oct 01; 18(13):1872-7. PMID: 8235875.
      View in: PubMed
    337. Albert TJ, Balderston RA, Heller JG, Herkowitz HN, Garfin SR, Tomany K, An HS, Simeone FA. Upper lumbar disc herniations. J Spinal Disord. 1993 Aug; 6(4):351-9. PMID: 8219549.
      View in: PubMed
    338. Albert TJ, Levine MJ, An HS, Cotler JM, Balderston RA. Concomitant noncontiguous thoracolumbar and sacral fractures. Spine (Phila Pa 1976). 1993 Aug; 18(10):1285-91. PMID: 8211360.
      View in: PubMed
    339. Nguyen CM, Haughton VM, Ho KC, An HS. MR contrast enhancement: an experimental study in postlaminectomy epidural fibrosis. AJNR Am J Neuroradiol. 1993 Jul-Aug; 14(4):997-1002. PMID: 8352176.
      View in: PubMed
    340. An HS, Munk R. Osteomyelitis of the posterior elements of the cervical spine in an infant. Orthopedics. 1993 May; 16(5):618-20. PMID: 8327390.
      View in: PubMed
    341. Vaccaro AR, An HS, Lin S, Sun S, Balderston RA, Cotler JM. Noncontiguous injuries of the spine. J Spinal Disord. 1992 Sep; 5(3):320-9. PMID: 1520991.
      View in: PubMed
    342. An HS, Simpson JM, Ebraheim NA, Jackson WT, Moore J, O'Malley NP. Low lumbar burst fractures: comparison between conservative and surgical treatments. Orthopedics. 1992 Mar; 15(3):367-73. PMID: 1553331.
      View in: PubMed
    343. An HS, Gordin R, Renner K. Anatomic considerations for plate-screw fixation of the cervical spine. Spine (Phila Pa 1976). 1991 Oct; 16(10 Suppl):S548-51. PMID: 1801270.
      View in: PubMed
    344. An HS, Vaccaro A, Cotler JM, Lin S. Low lumbar burst fractures. Comparison among body cast, Harrington rod, Luque rod, and Steffee plate. Spine (Phila Pa 1976). 1991 Aug; 16(8 Suppl):S440-4. PMID: 1838448.
      View in: PubMed
    345. An HS, Vaccaro AR, Dolinskas CA, Cotler JM, Balderston RA, Bauerle WB. Differentiation between spinal tumors and infections with magnetic resonance imaging. Spine (Phila Pa 1976). 1991 Aug; 16(8 Suppl):S334-8. PMID: 1785083.
      View in: PubMed
    346. Ebraheim NA, Rusin JJ, An HS, Coombs RJ, Jackson WT, Munk RL. Percutaneous computed tomography stabilization of moderate to severe slipped capital femoral epiphysis. Orthopedics. 1991 Aug; 14(8):859-63; discussion 863-4. PMID: 1923967.
      View in: PubMed
    347. Kupcha PC, An HS, Cotler JM. Gunshot wounds to the cervical spine. Spine (Phila Pa 1976). 1990 Oct; 15(10):1058-63. PMID: 2263972.
      View in: PubMed
    348. An HS, Vaccaro A, Simeone FA, Balderston RA, O'Neill D. Herniated lumbar disc in patients over the age of fifty. J Spinal Disord. 1990 Jun; 3(2):143-6. PMID: 2151986.
      View in: PubMed
    349. Simpson JM, Ebraheim NA, An HS, Jackson WT. Posterolateral bone graft of the tibia. Clin Orthop Relat Res. 1990 Feb; (251):200-6. PMID: 2295176.
      View in: PubMed
    350. An HS, Wojcieszek JM, Cooke RF, Limbird R, Jackson WT. Simultaneous ipsilateral intertrochanteric and subcapital fracture of the hip. A case report. Orthopedics. 1989 May; 12(5):721-3. PMID: 2657683.
      View in: PubMed
    351. An HS, Loder RT. Intraarticular entrapment of a displaced olecranon fracture. A case report. Orthopedics. 1989 Feb; 12(2):289-91. PMID: 2922364.
      View in: PubMed
    352. Ebraheim NA, An HS, Jackson WT, Brown JA. Internal fixation of the unstable cervical spine using posterior Roy-Camille plates: preliminary report. J Orthop Trauma. 1989; 3(1):23-8. PMID: 2709200.
      View in: PubMed
    353. An HS, Ebraheim NA, Savolaine ER, Fenton P, Poka A, Jackson WT. The value of internal oblique radiographs for posterolateral bone grafting of the tibia. Clin Orthop Relat Res. 1989 Jan; (238):209-10. PMID: 2642774.
      View in: PubMed
    354. An HS, Southworth SR, Jackson WT, Russ B. Cigarette smoking and Dupuytren's contracture of the hand. J Hand Surg Am. 1988 Nov; 13(6):872-4. PMID: 3225413.
      View in: PubMed
    355. An HS, Jackson WT, Hawthorne KB. Osteolysis of the pubic bone simulating malignancy. A case report and review of literature. Orthopedics. 1988 Jun; 11(6):951-4. PMID: 3290874.
      View in: PubMed
    356. An HS, Hawthorne KB, Jackson WT. Reflex sympathetic dystrophy and cigarette smoking. J Hand Surg Am. 1988 May; 13(3):458-60. PMID: 3379291.
      View in: PubMed
    357. Ebraheim NA, An HS, Jackson WT, Pearlstein SR, Burgess A, Tscherne H, Hass N, Kellam J, Wipperman BU. Scapulothoracic dissociation. J Bone Joint Surg Am. 1988 Mar; 70(3):428-32. PMID: 3346268.
      View in: PubMed
    358. An HS, Vonderbrink JP, Ebraheim NA, Shiple F, Jackson WT. Open scapulothoracic dissociation with intact neurovascular status in a child. J Orthop Trauma. 1988; 2(1):36-8. PMID: 3225700.
      View in: PubMed
    359. An HS, Ebraheim N, Kim K, Jackson WT, Kane JT. Heterotopic ossification and pseudoarthrosis in the shoulder following encephalitis. A case report and review of the literature. Clin Orthop Relat Res. 1987 Jun; (219):291-8. PMID: 3107863.
      View in: PubMed
    360. An HS, Namey TC, Kim K. Essential cryoglobulinemia associated with intense and persistent synovitis of the knee. Clin Orthop Relat Res. 1987 Feb; (215):173-8. PMID: 3802635.
      View in: PubMed
    361. An HS, Jackson WT, Hawthorne K, Ebraheim N. Transient simultaneous sciatic and femoral nerve palsy secondary to iliacus and gluteal hematomas following heparinization for pulmonary embolus in a patient with posterior hip dislocation. J Orthop Trauma. 1987; 1(2):174-6. PMID: 3506594.
      View in: PubMed
    362. An HS, Simpson JM, Gale S, Jackson WT. Acute anterior compartment syndrome in the thigh: a case report and review of the literature. J Orthop Trauma. 1987; 1(2):180-2. PMID: 3506596.
      View in: PubMed
    363. An HS, Howard JM, Kim K. Fracture of heterotopic ossification of the abdominal wall. A case report. Ohio State Med J. 1985 Aug; 81(8):591-3. PMID: 2931657.
      View in: PubMed
    An's Networks
    Click the "See All" links for more information and interactive visualizations!
    Concepts Expand Description
    _
    Co-Authors Expand Description
    _
    Similar People Expand Description
    _
    Same Department Expand Description
    Physical Neighbors Expand Description
    _