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Ahmad Nassr, M.D.

  1. Orthopedic Surgeon
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Publications

  1. Bak AB, Moghaddamjou A, Alvi M, Ahn H, Farhadi HF, Shaffrey CI, Nassr A, Mummaneni P, Arnold PM, Jacobs WB, Riew KD, Kelly M, Brodke DS, Vaccaro AR, Hilibrand AS, Wilson J, Harrop JS, Yoon ST, Kim KD, Fourney DR, Santaguida C, Massicotte EM, Kopjar B, Fehlings M. Postoperative C5 Palsy after Anterior or Posterior Decompression for Degenerative Cervical Myelopathy: A Subgroup Analysis of the Multicenter, Prospective, Randomized, Phase III, CSM-Protect Clinical Trial. Spine (Phila Pa 1976). 2024 Apr 15 [Epub ahead of print]
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  2. Levy HA, Pinter ZW, Pumford A, Salmons HI, Townsley S, Katsos K, Reed R, Chen S, Abode-Iyamah K, Deen HG, Clarke M, Bydon M, Fogelson JL, Elder BD, Currier B, Freedman BA, Nassr AN, Karamian BA, Sebastian AS. The Effect of C2 Muscular Exposure Technique on Radiographic and Clinical Outcomes After C2-T2 Posterior Cervical Fusion. Clin Spine Surg. 2024 Apr 10 [Epub ahead of print]
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  3. Pennington Z, Mikula AL, Lakomkin N, Martini M, Pinter ZW, Shafi M, Hamouda A, Bydon M, Clarke MJ, Freedman BA, Krauss WE, Nassr AN, Sebastian AS, Fogelson JL, Elder BD. Bone Quality as Measured by Hounsfield Units More Accurately Predicts Proximal Junctional Kyphosis than Vertebral Bone Quality Following Long-Segment Thoracolumbar Fusion. World Neurosurg. 2024 Apr 6 Epub 2024 Apr 06
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  4. Levy HA, Pinter ZW, Pumford A, Padilla S, Salmons HI, Townsley S, Katsos K, Clarke M, Bydon M, Fogelson JL, Elder BD, Currier B, Freedman BA, Nassr AN, Karamian BA, Sebastian AS. The effect of C2 screw type on perioperative outcomes and long-term stability after C2-T2 posterior cervical decompression and fusion. Eur Spine J. 2024 Apr 2 Epub 2024 Apr 02
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  5. Sullivan MH, Yu L, Schueler BA, Nassr A, Guerin J, Milbrandt TA, Larson AN. Radiation exposure in navigated techniques for AIS: is there a difference between pre-operative CT and intraoperative CT? Spine Deform. 2024 Mar; 12 (2):349-356 Epub 2023 Oct 23
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  6. Swart A, Hamouda A, Pennington Z, Lakomkin N, Mikula AL, Martini ML, Shafi M, Subramaniam T, Sebastian AS, Freedman BA, Nassr AN, Fogelson JL, Elder BD. Significant Reduction in Bone Density as Measured by Hounsfield Units in Patients with Ankylosing Spondylitis or Diffuse Idiopathic Skeletal Hyperostosis. J Clin Med. 2024 Mar 1; 13 (5) Epub 2024 Mar 01
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  7. Swart A, Hamouda AM, Pennington Z, Mikula AL, Martini M, Lakomkin N, Shafi M, Nassr AN, Sebastian AS, Fogelson JL, Freedman BA, Elder BD. Reduced Bone Density Based on Hounsfield Units After Long-Segment Spinal Fusion with Harrington Rods. World Neurosurg. 2024 Feb 17 [Epub ahead of print]
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  8. Pinter Z, Honig R, Sebastian A, Nassr A, Freedman B, Yaszemski M, Huddleston P 3rd, Berbari E, Currier B. Does Intrawound Vancomycin Decrease Postoperative Surgical Site Infection in Spine Surgery: A Retrospective Case-control Study. Clin Spine Surg. 2024 Feb 5 Epub 2024 Feb 05
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  9. Hamouda AM, Pennington Z, Astudillo Potes M, Mikula AL, Lakomkin N, Martini ML, Abode-Iyamah KO, Freedman BA, McClendon J Jr, Nassr AN, Sebastian AS, Fogelson JL, Elder BD. The Predictors of Incidental Durotomy in Patients Undergoing Pedicle Subtraction Osteotomy for the Correction of Adult Spinal Deformity. J Clin Med. 2024 Jan 7; 13 (2) Epub 2024 Jan 07
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  10. Nassr A. CORR Insights(R): Does A Hinged Operating Table Facilitate Sagittal Correction in Transforaminal Lumbar Interbody Fusion With Smith-Peterson Osteotomy? A Radiographic Analysis. Clin Orthop Relat Res. 2024 Jan 2 Epub 2024 Jan 02
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  11. Levy HA, Pinter ZW, Honig R, Salmons HI 4th, Hobson SL, Karamian BA, Freedman BA, Elder BD, Fogelson JL, Nassr AN, Sebastian AS. A Standardized Curriculum Improves Trainee Rod Bending Proficiency in Spinal Deformity Surgery. Results of a Prospective Randomized Controlled Educational Study. J Am Acad Orthop Surg. 2024 Jan 1; 32 (1):e17-e25 Epub 2023 July 25
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  12. Pennington Z, Mikula AL, Lakomkin N, Martini M, Clarke MJ, Sebastian AS, Freedman BA, Rose PS, Karim SM, Nassr A, Bydon M, Kowalchuk RO, Merrell KW, Krauss WE, Fogelson JL, Elder BD. Comparison of Hounsfield units and vertebral bone quality score for the prediction of time to pathologic fracture in mobile spine metastases treated with radiotherapy. J Neurosurg Spine. 2024 Jan 1; 40 (1):19-27 Epub 2023 Oct 13
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  13. Bernatz JT, Naylor RM, Goh BC, Brinjikji W, Sebastian A, Freedman B, Nassr A. Iatrogenic vertebral artery injury with concomitant contralateral idiopathic vertebral artery dissection managed with intravascular intervention: a case report. J Spine Surg. 2023 Dec 25; 9 (4):479-486 Epub 2023 Nov 29
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  14. Bernatz JT, Goh BC, Skjaerlund JD, Mikula AL, Johnson SE, Bydon M, Fogelson J, Elder B, Huddleston P, Karim M, Nassr A, Sebastian A, Freedman B. Intraoperative Surgeon Assessment of Bone: Correlation to Bone Mineral Density, CT Hounsfield units and Vertebral Bone Quality. Spine (Phila Pa 1976). 2023 Oct 19 [Epub ahead of print]
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  15. Martini ML, Mikula AL, Lakomkin N, Pennington Z, Everson MC, Hamouda AM, Bydon M, Freedman B, Sebastian AS, Nassr A, Anderson PA, Baffour F, Kennel KA, Fogelson J, Elder B. Opportunistic CT-Based Hounsfield Units Strongly Correlate with Biomechanical CT Measurements in the Thoracolumbar Spine. Spine (Phila Pa 1976). 2023 Sep 7 Epub 2023 Sept 07
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  16. Fehlings MG, Moghaddamjou A, Harrop JS, Stanford R, Ball J, Aarabi B, Freeman BJC, Arnold PM, Guest JD, Kurpad SN, Schuster JM, Nassr A, Schmitt KM, Wilson JR, Brodke DS, Ahmad FU, Yee A, Ray WZ, Brooks NP, Wilson J, Chow DS, Toups EG, Kopjar B. Safety and Efficacy of Riluzole in Acute Spinal Cord Injury Study (RISCIS): A Multi-Center, Randomized, Placebo-Controlled, Double-Blinded Trial. J Neurotrauma. 2023 Sep; 40 (17-18):1878-1888 Epub 2023 July 13
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  17. Pinter ZW, Reed R, Townsley SE, Mikula AL, Dittman L, Xiong A, Skjaerlund J, Michalopoulos GD, Currier B, Nassr A, Fogelson JL, Freedman BA, Bydon M, Kepler CK, Wagner SC, Elder BD, Sebastian AS. Titanium Cervical Cage Subsidence: Postoperative Computed Tomography Analysis Defining Incidence and Associated Risk Factors. Global Spine J. 2023 Sep; 13 (7):1703-1715 Epub 2021 Sept 24
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  18. Pinter ZW, Salmons HI 4th, Townsley S, Omar A, Michalopoulos G, Freedman BA, Currier BL, Elder BD, Nassr AN, Bydon M, Fogelson J, Sebastian AS. Semispinalis Cervicis Sarcopenia is Associated With Worsening Cervical Sagittal Balance and Junctional Alignment Following Posterior Cervical Fusion for Myelopathy. Clin Spine Surg. 2023 Aug 1; 36 (7):E288-E293 Epub 2022 Aug 09
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  19. Samartzis D, Aboushaala K, Albert TJ, Cha T, Chee A, Diwan AD, Espinoza-Orias A, Hu SS, Inoue N, Jacobs JJ, Lenke LG, Louie PK, Martin JT, Nassr A, Oh C, Phillips FM, Riew KD, Shen FH, Tannoury C, Vaccaro AR, Wong AYL, Yoon ST. Howard S. An: 2023 International Society for the Study of the Lumbar Spine Wiltse Lifetime Achievement Award. Spine (Phila Pa 1976). 2023 Jun 1; 48 (11):810-813 Epub 2023 Mar 17
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  20. Pinter ZW, Reed R, Townsley SE, Mikula AL, Lakomkin N, Kazarian E, Michalopoulos GD, Freedman BA, Currier BL, Elder BD, Bydon M, Fogelson J, Sebastian AS, Nassr AN. Paraspinal Sarcopenia is Associated With Worse Patient-Reported Outcomes Following Laminoplasty for Degenerative Cervical Myelopathy. Spine (Phila Pa 1976). 2023 Jun 1; 48 (11):772-781 Epub 2023 Mar 27
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  21. Maamari J, Grach SL, Passerini M, Kinzelman-Vesely EA, Nassr A, Carr C, Diehn FE, Tande AJ, Murad MH, Berbari EF. The use of MRI, PET/CT, and nuclear scintigraphy in the imaging of pyogenic native vertebral osteomyelitis: a systematic review and meta-analysis. Spine J. 2023 Jun; 23 (6):868-876 Epub 2023 Feb 07
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  22. Samartzis D, Aboushaala K, Albert TJ, Cha T, Chee A, Diwan AD, Espinoza-Orias A, Hu SS, Inoue N, Jacobs JJ, Lenke LG, Louie PK, Martin JT, Nassr A, Oh C, Phillips FM, Riew KD, Shen FH, Tannoury C, Vaccaro AR, Wong AYL, Yoon ST. Howard S. An: 2023 International Society for the Study of the Lumbar Spine Wiltse Lifetime Achievement Award. Spine (Phila Pa 1976). 2023 Jun 1; 48 (11):810-813 Epub 2023 Mar 17
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  23. Samartzis D, Aboushaala K, Albert TJ, Cha T, Chee A, Diwan AD, Espinoza-Orias A, Hu SS, Inoue N, Jacobs JJ, Lenke LG, Louie PK, Martin JT, Nassr A, Oh C, Phillips FM, Riew KD, Shen FH, Tannoury C, Vaccaro AR, Wong AYL, Yoon ST. Howard S. An: 2023 International Society for the Study of the Lumbar Spine Wiltse Lifetime Achievement Award. Spine (Phila Pa 1976). 2023 Jun 1; 48 (11):810-813 Epub 2023 Mar 17
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  24. Salmons HI, Pinter ZW, Streufert B, Sebastian AS, Nassr A, Investigation Performed at the Mayo Clinic, Rochester, MN. Performing 2-Stage Circumferential Fusion in an Adolescent With High-Grade Spondylolisthesis: A Surgical Technique. Clin Spine Surg. 2023 May 1; 36 (4):163-168 Epub 2022 Sept 23
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  25. Pinter ZW, Mikula AL, Reed R, Lakomkin N, Townsley SE, Wright B, Kazarian E, Michalopoulos GD, Currier B, Freedman BA, Bydon M, Elder BD, Fogelson J, Sebastian AS, Nassr A. Is Severe Neck Pain a Contraindication to Performing Laminoplasty in Patients With Cervical Spondylotic Myelopathy? Clin Spine Surg. 2023 Apr 1; 36 (3):127-133 Epub 2023 Mar 13
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  26. Masud S, Piche JD, Muralidharan A, Nassr A, Aleem I. Do Patients Accurately Recall Their Preoperative Symptoms After Elective Orthopedic Procedures? Cureus. 2023 Mar; 15 (3):e36810 Epub 2023 Mar 28
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  27. Pinter ZW, Freedman BA, Nassr A, Sebastian AS, Coric D, Welch WC, Steinmetz MP, Robbins SE, Ament J, Anand N, Arnold P, Baron E, Huang J, Whitmore R, Whiting D, Tahernia D, Sandhu F, Chahlavi A, Cheng J, Chi J, Pirris S, Groff M, Fabi A, Meyer S, Kushwaha V, Kent R, DeLuca S, Smorgick Y, Anekstein Y, TOPS Study Group. A Prospective Study of Lumbar Facet Arthroplasty in the Treatment of Degenerative Spondylolisthesis and Stenosis: Results from the Total Posterior Spine System (TOPS) IDE Study. Clin Spine Surg. 2023 Mar 1; 36 (2):E59-E69 Epub 2022 Aug 03
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  28. Pinter ZW, Mikula AL, Townsley SE, Salmons Iv HI, Lakomkin N, Michalopoulos GD, Nassr A, Freedman BA, Bydon M, Fogelson J, Sebastian AS, Elder BD. Lower Hounsfield Units and Severe Multifidus Sarcopenia Are Independent Predictors of Increased Risk for Proximal Junctional Kyphosis and Failure Following Thoracolumbar Fusion. Spine (Phila Pa 1976). 2023 Feb 15; 48 (4):223-231 Epub 2022 Nov 02
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  29. Pinter ZW, Mikula A, Shirley M, Xiong AS, Michalopoulos G, Ghaith AK, Wagner S, Elder BD, Freedman BA, Nassr A, Bydon M, Currier B, Kaye ID, Kepler C, Sebastian AS. Risk factors for allograft subsidence following anterior cervical discectomy and fusion. World Neurosurgery. 2023 Feb; 170:E700-11
  30. Pinter ZW, Mikula A, Shirley M, Xiong A, Michalopoulos G, Ghaith AK, Wagner S, Elder BD, Freedman BA, Nassr A, Bydon M, Currier B, Kaye ID, Kepler C, Sebastian AS. Risk Factors for Allograft Subsidence Following Anterior Cervical Discectomy and Fusion. World Neurosurg. 2023 Feb; 170:e700-e711 Epub 2022 Nov 26
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  31. Sullivan MH, Carlson BC, Milbrandt TA, Stans AA, Shaughnessy WJ, Nassr A, Larson AN. Sacropelvic fixation with S2-Alar-Iliac (S2AI) screws via CT-guided navigation J POSNA. 2023.
  32. Pinter ZW, Skjaerlund J, Michalopoulos GD, Nathani KR, Bydon M, Nassr A, Sebastian AS, Freedman BA. Dynamic Radiographs Are Unreliable to Assess Arthrodesis Following Cervical Fusion: A Modeled Radiostereometric Analysis of Cervical Motion. Spine (Phila Pa 1976). 2023 Jan 15; 48 (2):127-136 Epub 2022 Sept 06
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  33. Coric D, Nassr A, Kim PK, Welch WC, Robbins S, DeLuca S, Whiting D, Chahlavi A, Pirris SM, Groff MW, Chi JH, Huang JH, Kent R, Whitmore RG, Meyer SA, Arnold PM, Patel AI, Orr RD, Krishnaney A, Boltes P, Anekstein Y, Steinmetz MP. Prospective, randomized controlled multicenter study of posterior lumbar facet arthroplasty for the treatment of spondylolisthesis. J Neurosurg Spine. 2023 Jan 1; 38 (1):115-125 Epub 2022 Sept 23
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  34. Pinter ZW, Moore EJ, Rose PS, Nassr AN, Currier BL. En bloc resection of a high cervical chordoma followed by reconstruction with a free vascularized fibular graft: illustrative case. J Neurosurg Case Lessons. 2022 Dec 19; 4 (25)
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  35. Mikula AL, Lakomkin N, Pennington Z, Nassr A, Freedman B, Sebastian AS, Bydon M, Elder BD, Fogelson JL. Lumbar Lordosis Correction With Transforaminal Lumbar Interbody Fusion in Adult Spinal Deformity Patients with Minimum 2-Year Follow-up. World Neurosurg. 2022 Nov; 167:e295-e302 Epub 2022 Aug 08
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  36. Pinter ZW, Salmons HI 4th, Townsley S, Omar A, Freedman BA, Currier BL, Elder BD, Nassr AN, Bydon M, Wagner SC, Sebastian AS. Multifidus Sarcopenia Is Associated With Worse Patient-reported Outcomes Following Posterior Cervical Decompression and Fusion. Spine (Phila Pa 1976). 2022 Oct 15; 47 (20):1426-1434 Epub 2022 July 01
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  37. Pinter ZW, Mikula A, Shirley M, Xiong A, Wagner S, Elder BD, Freedman BA, Nassr A, Bydon M, Currier B, Kaye ID, Kepler C, Sebastian AS. Allograft Subsidence Decreases Postoperative Segmental Lordosis With Minimal Effect on Global Alignment Following ACDF. Global Spine J. 2022 Oct; 12 (8):1723-1730 Epub 2021 Jan 21
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  38. Streufert BD, Onyedimma C, Yolcu YU, Ghaith AK, Elder BD, Nassr A, Currier B, Sebastian AS, Bydon M. Rheumatoid Arthritis in Spine Surgery: A Systematic Review and Meta-Analysis. Global Spine J. 2022 Sep; 12 (7):1583-1595 Epub 2022 Mar 18
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  39. Benson JC, Lehman VT, Sebastian AS, Larson NA, Nassr A, Diehn FE, Wald JT, Murthy NS. Successful fusion versus pseudarthrosis after spinal instrumentation: a comprehensive imaging review. Neuroradiology. 2022 Sep; 64 (9):1719-1728 Epub 2022 June 14
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  40. Pinter ZW, Bou Monsef J, Monsef JB, Salmons HI, Sebastian AS, Freedman BA, Currier BL, Elder BD, Nassr AN. Does Preoperative Bone Mineral Density Impact Fusion Success in Anterior Cervical Spine Surgery? A Prospective Cohort Study. World Neurosurg. 2022 Aug; 164:e830-e834 Epub 2022 May 20
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  41. St Jeor JD, Jackson TJ, Xiong AE, Freedman BA, Sebastian AS, Currier BL, Fogelson JL, Bydon M, Nassr A, Elder BD. Average Lumbar Hounsfield Units Predicts Osteoporosis-Related Complications Following Lumbar Spine Fusion. Global Spine J. 2022 Jun; 12 (5):851-857 Epub 2020 Nov 23
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  42. Pinter ZW, Karamian B, Bou Monsef J, Mao J, Xiong A, Bowles DR, Conaway WK, Reiter DM, Honig R, Currier B, Nassr A, Freedman BA, Bydon M, Elder BD, Kaye ID, Kepler C, Schroeder G, Vaccaro A, Wagner S, Sebastian AS. Cervical Alignment and Proximal and Distal Junctional Failure in Posterior Cervical Fusion: A Multicenter Comparison of 2 Surgical Approaches. Clin Spine Surg. 2022 Jun 1; 35 (5):E451-E456 Epub 2021 Dec 15
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  43. Mikula AL, Lakomkin N, Pennington Z, Pinter ZW, Nassr A, Freedman B, Sebastian AS, Abode-Iyamah K, Bydon M, Ames CP, Fogelson JL, Elder BD. Association between lower Hounsfield units and proximal junctional kyphosis and failure at the upper thoracic spine. J Neurosurg Spine. 2022 May 13; 1-9 [Epub ahead of print]
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  44. Pinter ZW, Salmons HI 4th, Townsley SE, Xiong A, Michalopoulos GD, El Sammak S, Currier B, Nassr A, Freedman BA, Bydon M, Elder BD, Wagner S, Sebastian AS. Improved Sagittal Alignment Is Associated with Early Postoperative Neck Disability and Pain-Related Patient-Reported Outcomes Following Posterior Cervical Decompression and Fusion for Myelopathy. World Neurosurg. 2022 May; 161:e654-e663 Epub 2022 Feb 23
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  45. Colantonio DF, Nassr A, Freedman BA, Elder BD, Bydon M, Helgeson MD, Kepler CK, Sebastian AS, Wagner SC. The Effect of Preoperative Mental Health Status on Outcomes After Anterior Cervical Discectomy and Fusion. Int J Spine Surg. 2022 Apr; 16 (2):233-239
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  46. Piche J, Butt BB, Ahmady A, Park P, Patel R, Nassr A, Aleem I. Lateral Lumbar Corpectomy: Indications and Surgical Technique with Review of the Literature Seminars in Spine Surgery. 2022.
  47. Kolz JM, Pinter ZW, Sebastian AS, Freedman BA, Elder BD, Nassr AN. Postoperative and Intraoperative Cement Augmentation for Spinal Fusion. World Neurosurg. 2022 Apr; 160:e454-e463 Epub 2022 Jan 18
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  48. Jackson TJ, Freedman BA, Morris JM, Currier BL, Nassr A. Cervical myelopathy in a patient with Klippel-Feil syndrome treated with a patient-specific custom cervical spine locking plate. Spinal Cord Ser Cases. 2022 Jan 14; 8 (1):6
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  49. Butt BB, Kagan D, Gagnier J, Wasserman R, Nassr A, Patel R, Aleem I. Do Patients Accurately Recall Their Pain Levels Following Epidural Steroid Injection? A Cohort Study of Recall Bias in Patient-Reported Outcomes. Pain Physician. 2022 Jan; 25 (1):59-66
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  50. Mikula AL, Fogelson JL, Lakomkin N, Flanigan PM, Pinter ZW, Doan MK, Bydon M, Nassr A, Freedman B, Sebastian AS, Abode-Iyamah K, Anderson PA, Elder BD. Lower Hounsfield Units at the Upper Instrumented Vertebrae are Significantly Associated With Proximal Junctional Kyphosis and Failure Near the Thoracolumbar Junction. Oper Neurosurg (Hagerstown). 2021 Sep 15; 21 (4):270-275
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  51. Mikula AL, St Jeor JD, Naylor RM, Bernatz JT, Patel NP, Fogelson JL, Larson AN, Nassr A, Sebastian AS, Freedman B, Currier BL, Bydon M, Kennel KA, Yaszemski MJ, Anderson PA, Elder BD. Teriparatide Treatment Increases Hounsfield Units in the Thoracic Spine, Lumbar Spine, Sacrum, and Ilium Out of Proportion to the Cervical Spine. Clin Spine Surg. 2021 Aug 1; 34 (7):E370-E376
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  52. Kerezoudis P, Alvi MA, Freedman BA, Nassr A, Bydon M. Utilization Trends of Recombinant Human Bone Morphogenetic Protein in the United States. Spine (Phila Pa 1976). 2021 Jul 1; 46 (13):874-881
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  53. Wagner SC, Nassr A, Freedman BA, Elder BD, Bydon M, Sebastian AS. The Single Assessment Numeric Evaluation (SANE) after anterior cervical discectomy and fusion: A pilot study. J Clin Neurosci. 2021 Jun; 88:95-101 Epub 2021 Apr 02
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  54. Kolz JM, Hobson SL, Currier BL, Nassr AN. C1 and C2 Fractures Above a Previous Fusion Treated with Internal Fixation without Fusion: A Case Report. JBJS Case Connect. 2021 Apr 14; 11 (2)
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  55. Kolz JM, Freedman BA, Nassr AN. The Value of Cement Augmentation in Patients With Diminished Bone Quality Undergoing Thoracolumbar Fusion Surgery: A Review. Global Spine J. 2021 Apr; 11 (1_suppl):37S-44S
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  56. Pinter ZW, Wagner S, Fredericks D Jr, Xiong A, Helgeson M, Currier B, Freedman BA, Kepler C, Elder BD, Bydon M, Nassr A, Sebastian AS. Cervical Paraspinal Muscle Fatty Degeneration Is Not Associated with Muscle Cross-sectional Area: Qualitative Assessment Is Preferable for Cervical Sarcopenia. Clin Orthop Relat Res. 2021 Apr 1; 479 (4):726-732
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  57. Fehlings MG, Badhiwala JH, Ahn H, Farhadi HF, Shaffrey CI, Nassr A, Mummaneni P, Arnold PM, Jacobs WB, Riew KD, Kelly M, Brodke DS, Vaccaro AR, Hilibrand AS, Wilson J, Harrop JS, Yoon ST, Kim KD, Fourney DR, Santaguida C, Massicotte EM, Kopjar B. Safety and efficacy of riluzole in patients undergoing decompressive surgery for degenerative cervical myelopathy (CSM-Protect): a multicentre, double-blind, placebo-controlled, randomised, phase 3 trial. Lancet Neurol. 2021 Feb; 20 (2):98-106 Epub 2020 Dec 22
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  58. Pinter ZW, Sebastian AS, Currier BL, Nassr A. Surgical treatment of concomitant atlantoaxial instability and subaxial spondylotic stenosis in rheumatoid arthritis-a case report. Spinal Cord Ser Cases. 2021 Jan 19; 7 (1):2
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  59. Kolz JM, Christensen TC, Diehn FE, Sebastian AS, Currier BL, Nassr AN. Nonsurgical Management of Combined Occipitocervical and Atlantoaxial Distraction Injuries: A Case Report. JBJS Case Connect. 2021 Jan 14; 11 (1):e20.00228
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  60. Tomov M, Alvi MA, Elminawy M, Currier B, Yaszemski M, Nassr A, Huddleston P, Sebastian A, Bydon M, Freedman B. An Objective and Reliable Method for Identifying Sarcopenia in Lumbar Spine Surgery Patients: Using Morphometric Measurements on Computed Tomography Imaging. Asian Spine J. 2020 Dec; 14 (6):814-820 Epub 2020 May 29
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  61. Yolcu YU, Zreik J, Alvi MA, Wanderman NR, Carlson BC, Nassr A, Fogelson JL, Elder BD, Freedman BA, Bydon M. Use of teriparatide prior to lumbar fusion surgery lowers two-year complications for patients with poor bone health. Clin Neurol Neurosurg. 2020 Nov; 198:106244 Epub 2020 Sept 21
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  62. Bydon M, Moinuddin FM, Yolcu YU, Wahood W, Alvi MA, Goyal A, Elminawy M, Galeano-Garces C, Dudakovic A, Nassr A, Larson AN, van Wijnen AJ. Lumbar intervertebral disc mRNA sequencing identifies the regulatory pathway in patients with disc herniation and spondylolisthesis. Gene. 2020 Aug 5; 750:144634 Epub 2020 Mar 30
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  63. Flanigan PM, Mikula AL, Peters PA, Oushy S, Fogelson JL, Bydon M, Freedman BA, Sebastian AS, Currier BL, Nassr A, Kennel KA, Anderson PA, Polly DW, Elder BD. Regional improvements in lumbosacropelvic Hounsfield units following teriparatide treatment. Neurosurg Focus. 2020 Aug; 49 (2):E11
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  64. St Jeor JD, Jackson TJ, Xiong AE, Kadri A, Freedman BA, Sebastian AS, Currier BL, Nassr A, Fogelson JL, Kennel KA, Anderson PA, Elder BD. Osteoporosis in spine surgery patients: what is the best way to diagnose osteoporosis in this population? Neurosurg Focus. 2020 Aug; 49 (2):E4
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  65. Pinter ZW, Wagner SC, Fredericks DR Jr, Xiong A, Freedman BA, Elder BD, Nassr A, Bydon M, Kepler CK, Sebastian AS. Higher Paraspinal Muscle Density Effect on Outcomes After Anterior Cervical Discectomy and Fusion. Global Spine J. 2020 Jul 7; 2192568220935108 Epub 2020 July 07
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  66. Kolz JM, Alvi MA, Bhatti AR, Tomov MN, Bydon M, Sebastian AS, Elder BD, Nassr AN, Fogelson JL, Currier BL, Freedman BA. Anterior Cervical Osteophyte Resection for Treatment of Dysphagia. Global Spine J. 2020 Mar 20; 2192568220912706 [Epub ahead of print]
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  67. Wallace N, Schaffer NE, Freedman BA, Nassr A, Currier BL, Patel R, Aleem IS. Computer-assisted navigation in complex cervical spine surgery: tips and tricks. J Spine Surg. 2020 Mar; 6 (1):136-144
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  68. Aleem IS, Tan LA, Nassr A, Riew KD. Infection prevention in cervical spine surgery. J Spine Surg. 2020 Mar; 6 (1):334-339
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  69. Aleem IS, Tan LA, Nassr A, Riew KD. Surgical Site Infection Prevention Following Spine Surgery. Global Spine J. 2020 Jan; 10 (1 Suppl):92S-98S Epub 2020 Jan 06
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  70. Mikhail C, Pennington Z, Arnold PM, Brodke DS, Chapman JR, Chutkan N, Daubs MD, DeVine JG, Fehlings MG, Gelb DE, Ghobrial GM, Harrop JS, Hoelscher C, Jiang F, Knightly JJ, Kwon BK, Mroz TE, Nassr A, Riew KD, Sekhon LH, Smith JS, Traynelis VC, Wang JC, Weber MH, Wilson JR, Witiw CD, Sciubba DM, Cho SK. Minimizing Blood Loss in Spine Surgery. Global Spine J. 2020 Jan; 10 (1 Suppl):71S-83S Epub 2020 Jan 06
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  71. Wanderman N, Robinson W, Carlson B, Bydon M, Currier B, Huddleston P, Nassr A, Freedman B. Tranexamic Acid in Thoracic and Lumbar Fusions and Perioperative Blood Loss. Clin Spine Surg. 2019 Dec; 32 (10):E462-E468
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  72. Mikula AL, Puffer RC, Jeor JDS, Bernatz JT, Fogelson JL, Larson AN, Nassr A, Sebastian AS, Freedman BA, Currier BL, Bydon M, Yaszemski MJ, Anderson PA, Elder BD. Teriparatide treatment increases Hounsfield units in the lumbar spine out of proportion to DEXA changes. J Neurosurg Spine. 2019 Oct 18; 1-6 [Epub ahead of print]
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  73. Aleem IS, Alder J, Popper J, Freedman B, Nassr A, Bydon M, Yaszemski MJ, Currier BL. A Novel Anatomic Landmark to Assess Adequate Decompression in Anterior Cervical Spine Surgery: The Posterior Endplate Valley (PEV). Clin Spine Surg. 2019 Oct; 32 (8):345-349
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  74. Sebastian AS, Wanderman NR, Currier BL, Pichelmann MA, Treder VM, Fogelson JL, Clarke MJ, Nassr AN. Prospective Evaluation of Radiculitis following Bone Morphogenetic Protein-2 Use for Transforaminal Interbody Arthrodesis in Spine Surgery. Asian Spine J. 2019 Aug; 13 (4):544-555 Epub 2019 Mar 15
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  75. Law L, Hunt CL, van Wijnen AJ, Nassr A, Larson AN, Eldrige JS, Mauck WD, Pingree MJ, Yang J, Muir CW, Erwin PJ, Bydon M, Qu W. Office-Based Mesenchymal Stem Cell Therapy for the Treatment of Musculoskeletal Disease: A Systematic Review of Recent Human Studies. Pain Med. 2019 Aug 1; 20 (8):1570-1583
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  82. Mundell BF, Gates MJ, Kerezoudis P, Alvi MA, Freedman BA, Nassr A, Hohmann SF, Bydon M. Does patient selection account for the perceived cost savings in outpatient spine surgery? A meta-analysis of current evidence and analysis from an administrative database. J Neurosurg Spine. 2018 Dec 1; 29 (6):687-695
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  84. Ahmed AT, Abdel-Rahman O, Morsy M, Mustafa K, Testini P, Aleem IS, Murad MH, Nassr A. Management of Sacrococcygeal Chordoma: A Systematic Review and Meta-analysis of Observational Studies. Spine (Phila Pa 1976). 2018 Oct 1; 43 (19):E1157-E1169
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  85. Fehlings MG, Kopjar B, Ahn H, Farhadi F, Shaffrey CI, Nassr A, Mummaneni PV, Arnold PM, Jacobs B, Riew D, Brodke DS, Vaccaro AR, Hilibrand AS, Wilson JD, Harrop JS, Yoon ST, Kim K, Fourney DR, Santaguida C. 172 Role of the Sodium/Glutamate Blocker Riluzole in Enhancing Functional Outcomes in Patient Undergoing Surgery for Degenerative Cervical Myelopathy: Results of the Prospective, Multicenter Double-Blind Controlled CSM-Protect Randomized Controlled Trial Neurosurgery. 2018; 65(CN Suppl 1):105-106.
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  87. Bjerke BT, Zarrabian M, Aleem IS, Fogelson JL, Currier BL, Freedman BA, Bydon M, Nassr A. Incidence of Osteoporosis-Related Complications Following Posterior Lumbar Fusion. Global Spine J. 2018 Sep; 8 (6):563-569 Epub 2017 Dec 10
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  88. Kerezoudis P, Goncalves S, Cesare JD, Alvi MA, Kurian DP, Sebastian AS, Nassr A, Bydon M. Comparing outcomes of fusion versus repeat discectomy for recurrent lumbar disc herniation: A systematic review and meta-analysis. Clin Neurol Neurosurg. 2018 Aug; 171:70-78 Epub 2018 May 29
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  90. Riester SM, Lin Y, Wang W, Cong L, Mohamed Ali AM, Peck SH, Smith LJ, Currier BL, Clark M, Huddleston P, Krauss W, Yaszemski MJ, Morrey ME, Abdel MP, Bydon M, Qu W, Larson AN, van Wijnen AJ, Nassr A. RNA sequencing identifies gene regulatory networks controlling extracellular matrix synthesis in intervertebral disk tissues. J Orthop Res. 2018 May; 36 (5):1356-1369 Epub 2018 Jan 10
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  91. Wanderman NR, Francois EL, Nassr A, Sebastian AS. Is Minimally Invasive Transforaminal Interbody Fusion Superior to Traditional Open Technique? Clin Spine Surg. 2018 May; 31 (4):139-142
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  94. Sebastian AS, Ahmed A, Vernon B, Nguyen EC, Aleem I, Clarke MJ, Currier BL, Anderson P, Bydon M, Nassr A. Effect of an Adjustable Hinged Operating Table on Lumbar Lordosis During Lumbar Surgery. Spine (Phila Pa 1976). 2018 Feb 15; 43 (4):302-306
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  96. Wanderman NR, Mallet C, Giambini H, Bao N, Zhao C, An KN, Freedman BA, Nassr A. An Ovariectomy-Induced Rabbit Osteoporotic Model: A New Perspective. Asian Spine J. 2018 Feb; 12 (1):12-17 Epub 2018 Feb 07
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  97. Tomov M, Tou K, Winkel R, Puffer R, Bydon M, Nassr A, Huddleston P, Yaszemski M, Currier B, Freedman B. Does Subcutaneous Infiltration of Liposomal Bupivacaine Following Single-Level Transforaminal Lumbar Interbody Fusion Surgery Improve Immediate Postoperative Pain Control? Asian Spine J. 2018 Feb; 12 (1):85-93 Epub 2018 Feb 07
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  100. Kepler CK, Vaccaro AR, Fleischman AN, Traynelis VC, Patel AA, Dekutoski MB, Harrop J, Wood KB, Schroeder GD, Bransford R, Aarabi B, Okonkwo DO, Arnold PM, Fehlings MG, Nassr A, Shaffrey C, Yoon ST, Kwon B. Treatment of Axis Body Fractures: A Systematic Review. Clin Spine Surg. 2017 Dec; 30 (10):442-456
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  101. Mirza AK, Alvi MA, Naylor RM, Kerezoudis P, Krauss WE, Clarke MJ, Shepherd DL, Nassr A, DeMartino RR, Bydon M. Management of major vascular injury during pedicle screw instrumentation of thoracolumbar spine. Clin Neurol Neurosurg. 2017 Dec; 163:53-59 Epub 2017 Oct 16
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  102. Cloud BA, Zhao KD, Ellingson AM, Nassr A, Windebank AJ, An KN. Increased Seat Dump Angle in a Manual Wheelchair Is Associated With Changes in Thoracolumbar Lordosis and Scapular Kinematics During Propulsion. Arch Phys Med Rehabil. 2017 Oct; 98 (10):2021-2027.e2 Epub 2017 Mar 18
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  103. Grauberger J, Kerezoudis P, Choudhry AJ, Alvi MA, Nassr A, Currier B, Bydon M. Allegations of Failure to Obtain Informed Consent in Spinal Surgery Medical Malpractice Claims. JAMA Surg. 2017 Jun 21; 152 (6):e170544 Epub 2017 June 21
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  104. Hunt C, Her Y, Law L, Bydon M, Nassr A, Smith J, Mauch Mauck W, Eldrige J, Malanga G, Qu W. Five Generations of Cell Preparation: A translational framework for categorizing regenerative stem cell therapies. Journal of the American Academy of Regenerative Medicine. 2017; 1(1).
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  106. Nassr A, Aleem IS, Eck JC, Woods B, Ponnappan RK, Donaldson WF 3rd, Kang JD. Does Resection of the Posterior Longitudinal Ligament Impact the Incidence of C5 Palsy After Cervical Corpectomy Procedures?: A Review of 459 Consecutive Cases. Spine (Phila Pa 1976). 2017 Apr 1; 42 (7):E392-E397
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  107. Ailon T, Smith JS, Nassr A, Smith ZA, Hsu WK, Fehlings MG, Fish DE, Wang JC, Hilibrand AS, Mummaneni PV, Chou D, Sasso RC, Traynelis VC, Arnold PM, Mroz TE, Buser Z, Lord EL, Massicotte EM, Sebastian AS, Than KD, Steinmetz MP, Smith GA, Pace J, Corriveau M, Lee S, Riew KD, Shaffrey C. Rare Complications of Cervical Spine Surgery: Pseudomeningocoele. Global Spine J. 2017 Apr; 7 (1 Suppl):109S-114S Epub 2017 Apr 01
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  108. Schroeder GD, Hilibrand AS, Arnold PM, Fish DE, Wang JC, Gum JL, Smith ZA, Hsu WK, Gokaslan ZL, Isaacs RE, Kanter AS, Mroz TE, Nassr A, Sasso RC, Fehlings MG, Buser Z, Bydon M, Cha PI, Chatterjee D, Gee EL, Lord EL, Mayer EN, McBride OJ, Nguyen EC, Roe AK, Tortolani PJ, Stroh DA, Yanez MY, Riew KD. Epidural Hematoma Following Cervical Spine Surgery. Global Spine J. 2017 Apr; 7 (1 Suppl):120S-126S Epub 2017 Apr 01
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  109. Hsu WK, Kannan A, Mai HT, Fehlings MG, Smith ZA, Traynelis VC, Gokaslan ZL, Hilibrand AS, Nassr A, Arnold PM, Mroz TE, Bydon M, Massicotte EM, Ray WZ, Steinmetz MP, Smith GA, Pace J, Corriveau M, Lee S, Isaacs RE, Wang JC, Lord EL, Buser Z, Riew KD. Epidemiology and Outcomes of Vertebral Artery Injury in 16 582 Cervical Spine Surgery Patients: An AOSpine North America Multicenter Study. Global Spine J. 2017 Apr; 7 (1 Suppl):21S-27S Epub 2017 Apr 01
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  110. Hershman SH, Kunkle WA, Kelly MP, Buchowski JM, Ray WZ, Bumpass DB, Gum JL, Peters CM, Singhatanadgige W, Kim JY, Smith ZA, Hsu WK, Nassr A, Currier BL, Rahman RK, Isaacs RE, Smith JS, Shaffrey C, Thompson SE, Wang JC, Lord EL, Buser Z, Arnold PM, Fehlings MG, Mroz TE, Riew KD. Esophageal Perforation Following Anterior Cervical Spine Surgery: Case Report and Review of the Literature. Global Spine J. 2017 Apr; 7 (1 Suppl):28S-36S Epub 2017 Apr 01
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  112. Peterson JC, Arnold PM, Smith ZA, Hsu WK, Fehlings MG, Hart RA, Hilibrand AS, Nassr A, Rahman RK, Tannoury CA, Tannoury T, Mroz TE, Currier BL, De Giacomo AF, Fogelson JL, Jobse BC, Massicotte EM, Riew KD. Misplaced Cervical Screws Requiring Reoperation. Global Spine J. 2017 Apr; 7 (1 Suppl):46S-52S Epub 2017 Apr 01
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  118. Maloney PR, Halasz SR, Mallory GW, Grassner L, Jacob JT, Nassr A, Clarke MJ. The effect of diabetes mellitus on 30-day outcomes following single-level open lumbar microdiscectomy: an aged-matched case-control study. J Neurosurg Sci. 2017 Feb; 61 (1):1-7 Epub 2015 May 20
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  128. Giambini H, Dragomir-Daescu D, Nassr A, Yaszemski MJ, Zhao C. Quantitative computed tomography protocols affect material mapping and quantitative computed tomography-based finite-element analysis predicted stiffness Journal Of Biomechanical Engineering-transactions Of The Asme. 2016 Sep; 138(9):091003. Epub 1900 Jan 01.
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  130. Baghdadi YM, Moussallem CD, Shuaib MA, Clarke MJ, Dekutoski MB, Nassr AN. Lumbar Spinous Process-Splitting Laminoplasty: A Novel Technique for Minimally Invasive Lumbar Decompression. Orthopedics. 2016 Sep 1; 39 (5):e950-6 Epub 2016 June 24
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  133. Diehn FE, Maus TP, Morris JM, Carr CM, Kotsenas AL, Luetmer PH, Lehman VT, Thielen KR, Nassr A, Wald JT. Uncommon Manifestations of Intervertebral Disk Pathologic Conditions. Radiographics. 2016 May-Jun; 36: (3)801-23.
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  140. Ponnappan RK, Khan M, Matzon JL, Sheikh ES, Tucker BS, Pepe MD, Tjoumakaris FP, Nassr AN. Clinical differentiation of upper extremity pain etiologies. J Am Acad Orthop Surg. 2015 Aug; 23(8):492-500.
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  146. Hunt CL, Shen S, Nassr A, van Wijnen AJ, Larson AN, Eldrige JS, Mauck WD, Pingree MJ, Erwin PJ, Bydon M, Qu W. Current understanding of safety and efficacy of stem cell therapy for discogenic pain. A systematic review of human studies Techniques in Regional Anesthesia and Pain Management. 2015; 19(1-2):32-7. Epub 1900 Jan 01.
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  155. Khalil JG, Nassr A, Diehn FE, Campeau NG, Atkinson JL, Sia IG, Hanna A. Thoracolumbosacral spinal subdural abscess: magnetic resonance imaging appearance and limited surgical management. Spine (Phila Pa 1976). 2013 Jun 1; 38 (13):E844-7
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  157. Giambini H, Khosla S, Nassr A, Zhao C, An KN. Longitudinal changes in lumbar bone mineral density distribution may increase the risk of wedge fractures. Clin Biomech (Bristol, Avon). 2013 Jan; 28 (1):10-4 Epub 2012 Nov 08
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  158. Khalil JG, Nassr A, Maus TP. Physiologic imaging of the spine. Radiol Clin North Am. 2012 Jul; 50(4):599-611.
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  159. Sahota S, Nassr A, Khan MH, Marsh RW, Moran SL, Arnold PM, Dekutoski MB. Treatment of a thoracic dural-pleural fistula with a vascularized omental flap: a case report. Spine (Phila Pa 1976). 2012 May 15; 37(11):E683-5.
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  160. 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. Epub 2012 May 08.
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  161. Nassr A, Eck JC, Ponnappan RK, Zanoun RR, Donaldson WF 3rd, Kang JD. The incidence of C5 palsy after multilevel cervical decompression procedures: a review of 750 consecutive cases. Spine (Phila Pa 1976). 2012 Feb 1; 37 (3):174-8
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  162. 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.
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  163. Nassr A, Khan MH, Ali MH, Espiritu MT, Hanks SE, Lee JY, Donaldson WF, Kang JD. Donor-site complications of autogenous nonvascularized fibula strut graft harvest for anterior cervical corpectomy and fusion surgery: experience with 163 consecutive cases. Spine J. 2009 Nov; 9(11):893-8. Epub 2009 Jun 13.
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  164. Mikhael MM, Huddleston PM, Nassr A. Postoperative culture positive surgical site infections after the use of irradiated allograft, nonirradiated allograft, or autograft for spinal fusion. Spine (Phila Pa 1976). 2009 Oct 15; 34 (22):2466-8
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  165. Lee JY, Nassr A, Eck JC, Vaccaro AR. Controversies in the treatment of cervical spine dislocations. Spine J. 2009 May; 9(5):418-23. Epub 2009 Feb 23.
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  166. Grauer JN, Vaccaro AR, Lee JY, Nassr A, Dvorak MF, Harrop JS, Dailey AT, Shaffrey CI, Arnold PM, Brodke DS, Rampersaud R. The timing and influence of MRI on the management of patients with cervical facet dislocations remains highly variable: a survey of members of the Spine Trauma Study Group. J Spinal Disord Tech. 2009 Apr; 22(2):96-9.
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  167. Nassr A, Lee JY, Bashir RS, Rihn JA, Eck JC, Kang JD, Lim MR. Does incorrect level needle localization during anterior cervical discectomy and fusion lead to accelerated disc degeneration? Spine (Phila Pa 1976). 2009 Jan 15; 34(2):189-92.
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  168. Arnold PM, Brodke DS, Rampersaud YR, Harrop JS, Dailey AT, Shaffrey CI, Grauer JN, Dvorak MF, Bono CM, Wilsey JT, Lee JY, Nassr A, Vaccaro AR, Spine Trauma Study Group. Differences between neurosurgeons and orthopedic surgeons in classifying cervical dislocation injuries and making assessment and treatment decisions: a multicenter reliability study. Am J Orthop. 2009; 38(10):E156-E161.
  169. Nassr A, Larson AN, Crane B, Hammerberg KW, Sturm PF, Mardjetko SM. Iatrogenic thoracic outlet syndrome secondary to vertical expandable prosthetic titanium rib expansion thoracoplasty: pathogenesis and strategies for prevention/treatment. J Pediatr Orthop. 2009 Jan-Feb; 29(1):31-4.
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  170. Dailey AT, Shaffrey CI, Rampersaud R, Lee J, Brodke DS, Arnold P, Nassr A, Harrop JS, Grauer J, Bono CM, Dvorak M, Vaccaro A. Utility of helical computed tomography in differentiating unilateral and bilateral facet dislocations. J Spinal Cord Med. 2009; 32(1):43-8.
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  171. Kalisvaart MM, Nassr A, Eck JC. C5 palsy after cervical decompression procedures. Neurosurgery Quarterly. 2009; 19(4):276-82.
  172. Nassr A, Lee JY, Dvorak MF, Harrop JS, Dailey AT, Shaffrey CI, Arnold PM, Brodke DS, Rampersaud R, Grauer JN, Winegar C, Vaccaro AR. Variations in surgical treatment of cervical facet dislocations. Spine (Phila Pa 1976). 2008 Apr 01; 33: (7)E188-93.
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  173. Donaldson WF 3rd, Hanks SE, Nassr A, Vogt MT, Lee JY. Cervical spine injuries associated with the incorrect use of airbags in motor vehicle collisions. Spine (Phila Pa 1976). 2008 Mar 15; 33: (6)631-4.
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  174. Goldberg SH, Omid R, Nassr AN, Beck R, Cohen MS. Osseous anatomy of the distal humerus and proximal ulna: implications for total elbow arthroplasty. J Shoulder Elbow Surg. 2007 May-Jun; 16(3 Suppl):S39-46. Epub 2006 Sep 20.
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  175. Lee JY, Nassr A, Ponnappan RK. Epidural hematoma causing paraplegia after a fluoroscopically guided cervical nerve-root injection. A case report. J Bone Joint Surg. 2007; 89(9):2037-9.
  176. 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.
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  177. 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. 2005 Aug 1; 30(15):1750-5.
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