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Raghu N. Natarajan

TitleProfessor
InstitutionRush University, Rush Medical College
DepartmentOrthopedic Surgery
Address1611 W. Harrison St.
Chicago IL 60612
Phone312-942-5367
Fax312-942-2101
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    My Scopus ID is 35571584200.
    My NIH COMMONS name is RNATARAJAN.


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    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.
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    1. Oe S, Narita K, Hasegawa K, Natarajan RN, Yamato Y, Hasegawa T, Yoshida G, Banno T, Arima H, Mihara Y, Ushirozako H, Ide K, Yamada T, Watanabe Y, Matsuyama Y. Longer Screws Can Reduce the Stress on the Upper Instrumented Vertebra With Long Spinal Fusion Surgery: A Finite Element Analysis Study. Global Spine J. 2021 May 18; 21925682211018467. PMID: 34002639.
      View in: PubMed
    2. Natarajan RN, Watanabe K, Hasegawa K. Posterior bone graft in lumbar spine surgery reduces the stress in the screw-rod system- A finite element study. J Mech Behav Biomed Mater. 2020 04; 104:103628. PMID: 31929096.
      View in: PubMed
    3. Natarajan RN, Watanabe K, Hasegawa K. Biomechanical Analysis of a Long-Segment Fusion in a Lumbar Spine-A Finite Element Model Study. J Biomech Eng. 2018 09 01; 140(9). PMID: 29801167.
      View in: PubMed
    4. Bresnahan LE, Smith JS, Ogden AT, Quinn S, Cybulski GR, Simonian N, Natarajan RN, Fessler RD, Fessler RG. Assessment of Paraspinal Muscle Cross-sectional Area After Lumbar Decompression: Minimally Invasive Versus Open Approaches. Clin Spine Surg. 2017 04; 30(3):E162-E168. PMID: 28323694.
      View in: PubMed
    5. Natarajan RN, Andersson GB. Lumbar disc degeneration is an equally important risk factor as lumbar fusion for causing adjacent segment disc disease. J Orthop Res. 2017 01; 35(1):123-130. PMID: 27152925.
      View in: PubMed
    6. 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
    7. 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
    8. 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
    9. 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
    10. 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
    11. 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.
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    12. 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
    13. 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
    14. Rajasekaran S, Natarajan RN, Babu JN, Kanna PR, Shetty AP, Andersson GB. Lumbar vertebral growth is governed by "chondral growth force response curve" rather than "Hueter-Volkmann law": a clinico-biomechanical study of growth modulation changes in childhood spinal tuberculosis. Spine (Phila Pa 1976). 2011 Oct 15; 36(22):E1435-45. PMID: 21343857.
      View in: PubMed
    15. 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.
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    16. 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
    17. 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.
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    18. 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.
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    19. 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.
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    20. 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.
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    21. 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.
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    22. Bresnahan L, Fessler RG, Natarajan RN. Evaluation of change in muscle activity as a result of posterior lumbar spine surgery using a dynamic modeling system. Spine (Phila Pa 1976). 2010 Jul 15; 35(16):E761-7. PMID: 20634658.
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    23. 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
    24. 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.
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    25. Ruberté LM, Natarajan RN, Andersson GB. Influence of single-level lumbar degenerative disc disease on the behavior of the adjacent segments--a finite element model study. J Biomech. 2009 Feb 09; 42(3):341-8. PMID: 19136113.
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    26. Lavender SA, Li YC, Natarajan RN, Andersson GB. Does the asymmetry multiplier in the 1991 NIOSH lifting equation adequately control the biomechanical loading of the spine? Ergonomics. 2009 Jan; 52(1):71-9. PMID: 19308820.
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    27. Bresnahan L, Ogden AT, Natarajan RN, Fessler RG. A biomechanical evaluation of graded posterior element removal for treatment of lumbar stenosis: comparison of a minimally invasive approach with two standard laminectomy techniques. Spine (Phila Pa 1976). 2009 Jan 01; 34(1):17-23. PMID: 19127157.
      View in: PubMed
    28. Natarajan RN, Lavender SA, An HA, Andersson GB. Biomechanical response of a lumbar intervertebral disc to manual lifting activities: a poroelastic finite element model study. Spine (Phila Pa 1976). 2008 Aug 15; 33(18):1958-65. PMID: 18708928.
      View in: PubMed
    29. 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.
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    30. Williams JR, Natarajan RN, Andersson GB. Inclusion of regional poroelastic material properties better predicts biomechanical behavior of lumbar discs subjected to dynamic loading. J Biomech. 2007; 40(9):1981-7. PMID: 17156786.
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    31. 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.
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    32. Natarajan RN, Williams JR, Andersson GB. Modeling changes in intervertebral disc mechanics with degeneration. J Bone Joint Surg Am. 2006 Apr; 88 Suppl 2:36-40. PMID: 16595441.
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    33. Natarajan RN, Williams JR, Andersson GB. Recent advances in analytical modeling of lumbar disc degeneration. Spine (Phila Pa 1976). 2004 Dec 01; 29(23):2733-41. PMID: 15564922.
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    34. 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.
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    35. 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.
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    36. Surace MF, Berzins A, Urban RM, Jacobs JJ, Berger RA, Natarajan RN, Andriacchi TP, Galante JO. Coventry Award paper. Backsurface wear and deformation in polyethylene tibial inserts retrieved postmortem. Clin Orthop Relat Res. 2002 Nov; (404):14-23. PMID: 12439232.
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    37. Berzins A, Jacobs JJ, Berger R, Ed C, Natarajan R, Andriacchi T, Galante JO. Surface damage in machined ram-extruded and net-shape molded retrieved polyethylene tibial inserts of total knee replacements. J Bone Joint Surg Am. 2002 Sep; 84(9):1534-40. PMID: 12208909.
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    38. Natarajan RN, Andersson GB, Patwardhan AG, Verma S. Effect of annular incision type on the change in biomechanical properties in a herniated lumbar intervertebral disc. J Biomech Eng. 2002 Apr; 124(2):229-36. PMID: 12002133.
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    39. 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.
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    40. Weinans H, Sumner DR, Igloria R, Natarajan RN. Sensitivity of periprosthetic stress-shielding to load and the bone density-modulus relationship in subject-specific finite element models. J Biomech. 2000 Jul; 33(7):809-17. PMID: 10831755.
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    41. 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.
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    42. Natarajan RN, Andersson GB. The influence of lumbar disc height and cross-sectional area on the mechanical response of the disc to physiologic loading. Spine (Phila Pa 1976). 1999 Sep 15; 24(18):1873-81. PMID: 10515010.
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    43. Natarajan RN, Andersson GB, Patwardhan AG, Andriacchi TP. Study on effect of graded facetectomy on change in lumbar motion segment torsional flexibility using three-dimensional continuum contact representation for facet joints. J Biomech Eng. 1999 Apr; 121(2):215-21. PMID: 10211456.
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    44. Lavender SA, Li YC, Andersson GB, Natarajan RN. The effects of lifting speed on the peak external forward bending, lateral bending, and twisting spine moments. Ergonomics. 1999 Jan; 42(1):111-25. PMID: 9973875.
      View in: PubMed
    45. Wimmer MA, Andriacchi TP, Natarajan RN, Loos J, Karlhuber M, Petermann J, Schneider E, Rosenberg AG. A striated pattern of wear in ultrahigh-molecular-weight polyethylene components of Miller-Galante total knee arthroplasty. J Arthroplasty. 1998 Jan; 13(1):8-16. PMID: 9493532.
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    46. Sumner DR, Berzins A, Turner TM, Igloria R, Natarajan RN. Initial in vitro stability of the tibial component in a canine model of cementless total knee replacement. J Biomech. 1994 Jul; 27(7):929-39. PMID: 8063843.
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    47. Freeman PM, Natarajan RN, Kimura JH, Andriacchi TP. Chondrocyte cells respond mechanically to compressive loads. J Orthop Res. 1994 May; 12(3):311-20. PMID: 8207584.
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    48. Natarajan RN, Ke JH, Andersson GB. A model to study the disc degeneration process. Spine (Phila Pa 1976). 1994 Feb 01; 19(3):259-65. PMID: 8171355.
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    49. Wasielewski RC, Galante JO, Leighty RM, Natarajan RN, Rosenberg AG. Wear patterns on retrieved polyethylene tibial inserts and their relationship to technical considerations during total knee arthroplasty. Clin Orthop Relat Res. 1994 Feb; (299):31-43. PMID: 8119035.
      View in: PubMed
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