Henry Ahn

MD, FRCSC, PhD

Investigator

Biography

Dr. Henry Ahn is an orthopaedic surgeon and Associate Scientist in the Li Ka Shing Knowledge Institute at St. Michael’s Hospital.  He has a PhD in Clinical Epidemiology from the Institute of Health Policy, Management and Evaluation (IHPME) at the University of Toronto. His clinical practice is focused on the management of polytrauma patients with significant orthopaedic injuries, spinal cord injuries, along with complex adult spinal disorders. Dr. Ahn is a member of the University of Toronto Spine Program and is a Principal Investigator with the Rick Hansen Registry.  He has a research interest in the management of spinal cord injury and the epidemiology of spinal cord injury incorporating large databases, prospective cohort studies, along with randomized control trials.

Recent Publications

  1. Frihagen, F, Comeau-Gauthier, M, Axelrod, D, Bzovsky, S, Poolman, R, Heels-Ansdell, D et al.. Who, if anyone, may benefit from a total hip arthroplasty after a displaced femoral neck fracture?: a post hoc subgroup analysis of the HEALTH trial. Bone Jt Open. 2022;3 (8):611-617. doi: 10.1302/2633-1462.38.BJO-2022-0074.R1. PubMed PMID:35909342 PubMed Central PMC9422900.
  2. Cushnie, D, Soroceanu, A, Stratton, A, Dea, N, Finkelstein, J, Bailey, CS et al.. Outcome of spine surgery in patients with depressed mental states: a Canadian spine outcome research network study. Spine J. 2022; :. doi: 10.1016/j.spinee.2022.05.012. PubMed PMID:35671946 .
  3. Borges, FK, Devereaux, PJ, Cuerden, M, Sontrop, JM, Bhandari, M, Guerra-Farfán, E et al.. Accelerated Surgery Versus Standard Care in Hip Fracture (HIP ATTACK-1): A Kidney Substudy of a Randomized Clinical Trial. Am J Kidney Dis. 2022; :. doi: 10.1053/j.ajkd.2022.01.431. PubMed PMID:35346742 .
  4. Iorio-Morin, C, Fisher, CG, Abraham, E, Nataraj, A, Attabib, N, Paquet, J et al.. Low-back pain after lumbar discectomy for disc herniation: what can you tell your patient?. J Neurosurg Spine. 2021;35 (6):715-721. doi: 10.3171/2021.2.SPINE201625. PubMed PMID:34450579 .
  5. Inculet, C, Urquhart, JC, Rasoulinejad, P, Hall, H, Fisher, C, Attabib, N et al.. Factors associated with using an interbody fusion device for low-grade lumbar degenerative versus isthmic spondylolisthesis: a retrospective cohort study. J Neurosurg Spine. 2021; :1-9. doi: 10.3171/2020.11.SPINE201261. PubMed PMID:34214985 .
  6. Glennie, RA, Canizares, M, Perruccio, AV, Abraham, E, Nicholls, F, Nataraj, A et al.. The impact of pathoanatomical diagnosis on elective spine surgery patient expectations: a Canadian Spine Outcomes and Research Network study. J Neurosurg Spine. 2021; :1-8. doi: 10.3171/2020.11.SPINE201490. PubMed PMID:34020418 .
  7. Slobogean, GP, Sprague, S, Bzovsky, S, Scott, T, Thabane, L, Heels-Ansdell, D et al.. Fixation using Alternative Implants for the Treatment of Hip Fractures (FAITH-2): The Exploratory Health-Related Quality of Life and Patient-Reported Functional Outcomes of a Multi-Centre 2 × 2 Factorial Randomized Controlled Pilot Trial in Young Femoral Neck Fracture Patients. Injury. 2021;52 (10):3051-3059. doi: 10.1016/j.injury.2021.02.030. PubMed PMID:33618847 .
  8. Fehlings, MG, Badhiwala, JH, Ahn, H, Farhadi, HF, Shaffrey, CI, Nassr, A et al.. 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;20 (2):98-106. doi: 10.1016/S1474-4422(20)30407-5. PubMed PMID:33357512 .
  9. Würdemann, FS, Poolman, RW, Krijnen, P, Bzovsky, S, Sprague, S, Kaptein, BL et al.. Clockwise Torque of Sliding Hip Screws: Is There a Right Side?. J Orthop Trauma. 2020;34 Suppl 3 :S76-S80. doi: 10.1097/BOT.0000000000001934. PubMed PMID:33027170 .
  10. MacDonald, DRW, Neilly, D, Schneider, PS, Bzovsky, S, Sprague, S, Axelrod, D et al.. Venous Thromboembolism in Hip Fracture Patients: A Subanalysis of the FAITH and HEALTH Trials. J Orthop Trauma. 2020;34 Suppl 3 :S70-S75. doi: 10.1097/BOT.0000000000001939. PubMed PMID:33027169 .
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Affiliations & Other Activities

  • Assistant Professor, Division of Orthopaedic Surgery, University of Toronto
  • Assistant Professor, University of Toronto Spine Program, University of Toronto