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Raymond Jonathan Hah, MD

Associate Professor of Clinical Orthopaedic Surgery

Career Advisor- Orthopaedic Surgery

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Phone +1 323 442 5300
Email rhah@usc.edu
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Overview

Raymond Hah, M.D. is an Associate Professor of Clinical Orthopaedic Surgery at the Keck School of Medicine of USC, specializing in spine surgery. He has a special interest in minimally invasive surgery, adult spinal deformity, and complex spinal reconstruction. Dr. Hah believes in educating patients so they are equipped to make the best decisions regarding their health. He has found that a multi-disciplinary approach to treatment offers the best chance of sustained success. If surgery is necessary, he is committed to offering the most cutting edge technology and technique to maximize the patient’s experience and results. Dr. Hah is actively engaged in clinical research to improve the care of patients with spinal disorders. He also teaches medical students, residents, and fellows at Keck Medical Center of USC. Dr. Hah received his medical degree at Northwestern University, his residency at the LAC+USC Medical Center, and did a fellowship in spine surgery at the University of Wisconsin—Madison. He is an active member of the North American Spine Society, Lumbar Spine Research Society, AO Spine, and American Academy of Orthopaedic Surgeons.

Awards

  • NASS : Spineline 20 Under 40, 2021
  • AAOS: Best Poster Spine Section: A Nationwide Analysis of Geriatric Odontoid Fracture Incidence, Complicat, 2021
  • Los Angeles Magazine: Southern California Rising Star, 2017-2022
  • Pasadena Magazine: Top Doctor, 2016-2021

Publications

  • Artificial Intelligence vs Human Authorship in Spine Surgery Fellowship Personal Statements: Can ChatGPT Outperform Applicants? Global Spine J. 2025 May 20; 21925682251344248.. View in PubMed
  • Laminoplasty vs Laminectomy and Fusion for Cervical Myelopathy: Alarming Rates of Bias Global Spine J. 2025 May 16; 21925682251343833. . View in PubMed
  • Retropharyngeal Hematoma Following Anterior Cervical Discectomy and Fusion: Identifying Risk to Prevent a Life-Threatening Complication Global Spine J. 2025 May 16; 21925682251343839. . View in PubMed
  • Polyetheretherketone vs Titanium Cages in Spinal Fusion: Spin Bias in Abstracts of Systematic Reviews and Meta-Analyses Global Spine J. 2025 Apr 16; 21925682251336750. . View in PubMed
  • Staged Versus Same-Day Circumferential Lumbar Fusion for Degenerative Disease: Which is the Safer Approach? Global Spine J. 2025 Apr 14; 21925682251334122.. View in PubMed
  • Incidence and Predictors of Oral Steroid Use Shortly Following Lumbar Microdiscectomy Spine (Phila Pa 1976). 2025 Mar 20. . View in PubMed
  • Evolving Role of Lumbar Decompression: A Narrative Review Int J Spine Surg. 2025 Mar 06; 19(1):117-128. . View in PubMed
  • Nationwide Analysis of Sacroiliac Joint Fusion Trends: Regional Variations in Utilization and Population Characteristics Global Spine J. 2025 Mar; 15(2):518-525. . View in PubMed
  • Risk Factors for Postoperative Urinary Tract Infection in Patients Undergoing Arthrodesis for Spinal Deformity of Different Levels Int J Spine Surg. 2025 Feb 26. . View in PubMed
  • Predictors and Postoperative Complication Risks for Revision Discectomies Following Primary Lumbar Microdiscectomy Global Spine J. 2025 Feb 24; 21925682251323274. . View in PubMed
  • Burden and Predictors of Incisional Hernia Following Anterior Lumbar Fusion: A National Study Global Spine J. 2025 Feb 11; 21925682251320391. . View in PubMed
  • Complications and Clinical Outcomes of Anterior Lumbar Interbody Fusion in Patients With Primary Hypercoagulable Disorders Global Spine J. 2025 Feb 04; 21925682251316555. . View in PubMed
  • The change in lumbar lordosis from the standing to the lateral position: implications for lateral interbody fusion Eur Spine J. 2025 Jan; 34(1):148-155. . View in PubMed
  • National Trends in Lumbar Degenerative Spondylolisthesis With Stenosis Treated With Fusion Versus Decompression Neurospine. 2024 Dec; 21(4):1068-1077. . View in PubMed
  • Changes in Segmental and Lumbar Lordosis Following Lumbar Interbody Fusion: A Systematic Review and Meta-Analysis Clin Spine Surg. 2024 Nov 22. . View in PubMed
  • The Effect of Osteoporosis on Complications and Reoperation Rates After Surgical Management of Adult Thoracolumbar Spinal Deformity: A Systematic Review and Meta Analysis Global Spine J. 2024 Nov; 14(8):2420-2439. . View in PubMed
  • The Effect of COVID-19 on Spine Surgery Global Spine J. 2024 Nov; 14(8):2252-2258. . View in PubMed
  • Lumbar Fusions in Patients with Sickle Cell Disease: A Propensity-Matched Analysis of Postoperative Complications World Neurosurg. 2024 Oct; 190:e435-e442. . View in PubMed
  • Risk of Subsequent Hip Fractures across Varying Treatment Patterns for Index Vertebral Compression Fractures J Clin Med. 2024 Aug 14; 13(16). . View in PubMed
  • The Evolution of Risk Assessment in Spine Surgery: A Narrative Review World Neurosurg. 2024 Aug; 188:1-14. . View in PubMed
  • Cervical Spine Myelopathy Caused by Calcium Pyrophosphate Dihydrate Deposition of the Ligamentum Flavum: A Case Report Cureus. 2024 Aug; 16(8):e66869. . View in PubMed
  • Systematic Review and Meta-Analysis of the Effect of Osteoporosis on Fusion Rates and Complications Following Surgery for Degenerative Cervical Spine Pathology Int J Spine Surg. 2024 Jul 04; 18(3):277-286. . View in PubMed
  • Integration of Chronological Age Does Not Improve the Performance of a Mixed-Effect Model Using Comorbidity Burden and Frailty to Predict 90-Day Readmission After Surgery for Degenerative Scoliosis World Neurosurg. 2024 07; 187:e560-e567. . View in PubMed
  • The impact of enhanced recovery after surgery (ERAS) on opioid consumption and postoperative pain levels in elective spine surgery Clin Neurol Neurosurg. 2024 07; 242:108350. . View in PubMed
  • Patients with Hip Osteoarthritis Have a Higher Rate of Spinal Reoperation Following Lumbar Spinal Fusion J Bone Joint Surg Am. 2024 May 29. . View in PubMed
  • The Incidence of Double Crush Syndrome in Surgically Treated Patients Global Spine J. 2024 May; 14(4):1220-1226. . View in PubMed
  • Systematic Review and Meta-Analysis of the Effect of Osteoporosis on Reoperation Rates and Complications after Surgical Management of Lumbar Degenerative Disease J Bone Metab. 2024 May; 31(2):114-131. . View in PubMed
  • Top 25 Most Cited Articles on Intraoperative Computer Tomography-Guided Navigation in Spine SurgeryWorld Neurosurg. 2024 04; 184:322-330. e1. . View in PubMed
  • Top 25 Most-Cited Articles on Robotic-Assisted Lumbar Spine Surgery Int J Spine Surg. 2024 Mar 04; 18(1):37-46. . View in PubMed
  • Cervical Disc Arthroplasty: Rationale, Designs, and Results of Randomized Controlled Trials Int J Spine Surg. 2024 Feb 27. . View in PubMed
  • The Incidence of Vertebral Artery Injury in Cervical Spine Surgery World Neurosurg. 2024 01; 181:e841-e847. . View in PubMed
  • Preoperative Epidural Steroid Injection Does Not Increase Infection Risk Following Posterior Cervical Surgery Spine (Phila Pa 1976). 2023 Dec 01; 48(23):1658-1662. . View in PubMed
  • Surgical strategies for spinal infections: A narrative review N Am Spine Soc J. 2023 Dec; 16:100293. . View in PubMed
  • Increased dislocation rates following total hip arthroplasty in patients with ankylosing spondylitis Hip Int. 2023 Nov; 33(6):1026-1034. . View in PubMed
  • A Decreasing National Trend in Lumbar Disc Arthroplasty Global Spine J. 2023 Oct; 13(8):2271-2277. . View in PubMed
  • The Role of Sex Hormones in Degenerative Disc Disease Global Spine J. 2023 Sep; 13(7):2096-2099. . View in PubMed
  • Evaluating Changes to the Modified K-Line Using Kinematic MRIs Spine (Phila Pa 1976). 2023 Jun 15; 48(12):859-866. . View in PubMed
  • Complication Rates and Utilization Trends of 3-Level Posterior Column Osteotomy Compared to Single-Level Pedicle Subtraction Osteotomy Neurospine. 2023 Jun; 20(2):662-668. . View in PubMed
  • The Correlation Between Pelvic Motion and Lumbar Motion in Patients Presenting With a Lumbar Spinal Pathology: Implications for Assessing Dislocation Risk in Total Hip Arthroplasty Arthroplast Today. 2023 Apr; 20:101105. . View in PubMed
  • Are Cervical Disc Arthroplasty Medicare Reimbursement Trends Sustainable? Int J Spine Surg. 2023 Apr; 17(2):222-229.. View in PubMed
  • The Role of Psychosocial Screening in Patient Selection for Spine Surgery: A Review Int J Spine Surg. 2023 Apr; 17(2):309-317. . View in PubMed
  • Incidence of complications associated with cervical spine surgery and post-operative physical therapy and implications for timing of initiation of post-operative physical therapy: a retrospective database study Eur Spine J. 2023 01; 32(1):382-388. . View in PubMed
  • Secondary Fracture Rate After Vertebral Osteoporotic Compression Fracture Is Decreased by Anti-Osteoporotic Medication but Not Increased by Cement Augmentation J Bone Joint Surg Am. 2022 12 21; 104(24):2178-2185. . View in PubMed
  • Acute Operative Management of Osteoporotic Vertebral Compression Fractures Is Associated with Decreased Morbidity Asian Spine J. 2022 Oct; 16(5):634-642. . View in PubMed
  • The performance of frailty in predictive modeling of short-term outcomes in the surgical management of metastatic tumors to the spine Spine J. 2022 04; 22(4):605-615. . View in PubMed
  • Timing of Total Hip Arthroplasty Affects Lumbar Spinal Fusion Outcomes Clin Spine Surg. 2022 03 01; 35(2):E333-E338. . View in PubMed
  • Single position lumbar fusion: a systematic review and meta-analysis Spine J. 2022 03; 22(3):429-443. . View in PubMed
  • Complication Trends and Costs of Surgical Management in 11,086 Osteoporotic Patients Receiving Lumbar Fusion Spine (Phila Pa 1976). 2021 Nov 01; 46(21):1478-1484. . View in PubMed
  • The Impact of Physical Therapy Following Cervical Spine Surgery for Degenerative Spine Disorders: A Systematic Review Clin Spine Surg. 2021 10 01; 34(8):291-307. . View in PubMed
  • Venous Thromboembolism Prophylaxis in Elective Spine Surgery Global Spine J. 2021 Sep; 11(7):1148-1155. . View in PubMed
  • Intraoperative Neuromonitoring During Lateral Lumbar Interbody Fusion Neurospine. 2021 Sep; 18(3):430-436. . View in PubMed
  • The influence of modifiable risk factors on short-term postoperative outcomes following cervical spine surgery: A retrospective propensity score matched analysis EClinicalMedicine. 2021 Jun; 36:100889. . View in PubMed
  • Not without my attending: a survey of patient and family member attitudes and perceptions about concurrent and overlapping surgery Spine J. 2021 06; 21(6):889-898. . View in PubMed
  • Anterior Versus Posterior Decompression for Degenerative Thoracic Spine Diseases: A Comparison of Complications Global Spine J. 2021 May; 11(4):442-449. . View in PubMed
  • Global Spine J. 2021 Apr; 11(1_suppl):30S-36S. . View in PubMed
  • Semitendinosus Tendon Augmentation for Prevention of Proximal Junctional Failure Spine (Phila Pa 1976). 2021 Feb 15; 46(4):241-248. . View in PubMed
  • Comparison of Proximal Junctional Failure and Functional Outcomes Across Varying Definitions of Proximal Junctional Kyphosis World Neurosurg. 2021 02; 146:e100-e105. . View in PubMed
  • A Nationwide Analysis of Geriatric Odontoid Fracture Incidence, Complications, Mortality, and Cost Spine (Phila Pa 1976). 2021 Jan 15; 46(2):131-137. . View in PubMed
  • Biomechanical Analysis of an Anterior Cervical Discectomy and Fusion Pseudarthrosis Model Revised With Machined Interfacet Allograft Spacers Global Spine J. 2020 Dec; 10(8):973-981. . View in PubMed
  • Cervical Disc Replacement: Trends, Costs, and Complications Asian Spine J. 2020 Oct; 14(5):647-654. . View in PubMed
  • COVID-19 and Spine Surgery: A Review and Evolving Recommendations Global Spine J. 2020 Aug; 10(5):528-533. . View in PubMed
  • A Case Series of Retroperitoneal Lymphocele Following Anterior Lumbar Interbody Fusion World Neurosurg. 2020 08; 140:114-118. . View in PubMed
  • Response to Letter to the Editor Concerning “The True Effect of a Lumbar Dural Tear on Complications and Cost” Spine (Phila Pa 1976). 2020 Apr 01; 45(7):E414. . View in PubMed
  • The True Effect of a Lumbar Dural Tear on Complications and Cost Spine (Phila Pa 1976). 2020 Feb 01; 45(3):E155-E162. . View in PubMed
  • Frailty Syndrome and the Use of Frailty Indices as a Preoperative Risk Stratification Tool in Spine Surgery: A Review Asian Spine J. 2019 10; 13(5):861-873. . View in PubMed
  • The DOWN Questionnaire: A Novel Screening Tool for Cervical Spondylotic Myelopathy Global Spine J. 2019 Sep; 9(6):607-612. . View in PubMed
  • Lateral and Oblique Lumbar Interbody Fusion-Current Concepts and a Review of Recent Literature Curr Rev Musculoskelet Med. 2019 Jun 22; 305-310. . View in PubMed
  • Risk Factors for Postoperative Venous Thromboembolic Events in Patients Undergoing Lumbar Spine Surgery Global Spine J. 2019 Jun; 9(4):409-416. . View in PubMed
  • Tarlov Cysts in a Woman With Lumbar Pain J Orthop Sports Phys Ther. 2018 02; 48(2):121. . View in PubMed
  • The Clinical Correlations between Diabetes, Cigarette Smoking and Obesity on Intervertebral Degenerative Disc Disease of the Lumbar Spine Asian Spine J. 2017 Jun; 11(3):337-347. . View in PubMed
  • Bisphosphonate’s and Intermittent Parathyroid Hormone’s Effect on Human Spinal Fusion: A Systematic Review of the Literature Asian Spine J. 2017 Jun; 11(3):484-493. . View in PubMed
  • Reoperation Rates After Single-level Lumbar Discectomy Spine (Phila Pa 1976). 2017 Apr 15; 42(8):E496-E501. . View in PubMed
  • Assessment of Lowest Instrumented Vertebra Tilt on Radiographic Measurements in Lenke “C” Modifier Curves Undergoing Selective Thoracic Fusion in Adolescent Idiopathic Scoliosis Spine Deform. 2016 Mar; 4(2):125-130. . View in PubMed
  • Assessment of Lowest Instrumented Vertebra Tilt on Radiographic Measurements in Lenke “C” Modifier Curves Undergoing Selective Thoracic Fusion in Adolescent Idiopathic Scoliosis Spine Deform. 2016 Mar; 4(2):125-130. . View in PubMed

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