Christopher Witiw

MD, MS, FRCSC

Investigator

Biography

Christopher Witiw entered the neurosurgery residency program at the University of Toronto after completing his MD at the University of Manitoba in 2012. During his residency he completed a MS degree with a focus on Health Economics at The University of Chicago after receiving an award from the Canadian Institutes of Health Research. His thesis on the value of surgery for Degenerative Cervical Myelopathy was awarded the prestigious Outstanding Paper Award from the North American Spine Society in 2016. He has received numerous other awards including the Shafie S. Fazel Outstanding Resident Surgeon and Investigator Award from the University of Toronto Department of Surgery and the Alan R. Hudson Neurosurgery Resident Teaching Award from the University of Toronto Division of Neurosurgery. After obtaining his FRCSC in Neurosurgery in 2018, Chris undertook a subspecialty fellowship in Complex and Minimally Invasive Spine Surgery at Rush University Medical Center in Chicago. Chris returns to Toronto as a Surgeon Investigator at St. Michael’s Hospital where his clinical work is directed toward treating the full spectrum of spinal disorders. He has a specific interest in minimally invasive approaches to spinal conditions. Chris’ research work is centered on Health Economics and Health Services pertinent to spinal pathology and he is especially interested in ‘big data’ analytics as a means to optimize efficiency and quality of spine surgery.

Spine Research Program 

 

Recent Publications

  1. Malhotra, AK, Nathens, AB, Shakil, H, Karthikeyan, V, Lozano, CS, Badhiwala, JH et al.. Predicting Return Home After Moderate-to-Severe Traumatic Brain Injury. Neurology. 2026;106 (4):e214571. doi: 10.1212/WNL.0000000000214571. PubMed PMID:41604614 .
  2. Burgess, L, Atenafu, EG, Zeng, KL, Chen, H, Dinakaran, D, Tseng, CL et al.. Predictors of Vertebral Compression Fracture Following Stereotactic Body Radiation Therapy in SINS Potentially Unstable Spinal Metastases. Int J Radiat Oncol Biol Phys. 2026; :. doi: 10.1016/j.ijrobp.2025.12.029. PubMed PMID:41591323 .
  3. Diep, C, Daza, JF, Lee, S, Witiw, C, Vigod, S, Wijeysundera, DN et al.. Nonfatal self-injury in the first year after surgery: a population-based epidemiologic study. Br J Anaesth. 2026; :. doi: 10.1016/j.bja.2025.12.027. PubMed PMID:41577607 .
  4. Shakil, H, Malhotra, AK, Bondzi-Simpson, A, Essa, A, Karthikeyan, V, Lozano, CS et al.. Influence of socioeconomic status on health outcomes after treatment of spinal metastases. J Neurosurg Spine. 2026; :1-10. doi: 10.3171/2025.8.SPINE25567. PubMed PMID:41569697 .
  5. Essa, A, Malhotra, AK, Shakil, H, Byrne, JP, Badhiwala, J, Nathens, AB et al.. Trends and Impact of Pharmacological VTE Prophylaxis Timing for Traumatic Cervical Spinal Cord Injury Across North American Trauma Centers. J Bone Joint Surg Am. 2026;108 (1):51-59. doi: 10.2106/JBJS.24.00563. PubMed PMID:41498771 .
  6. Rotem-Kohavi, N, Humphreys, S, Noonan, VK, Cheng, CL, Guay-Paquet, M, Bouthillier, M et al.. Building a library of acute traumatic spinal cord injury images across Canada: a retrospective cohort study protocol. BMJ Open. 2025;15 (12):e106818. doi: 10.1136/bmjopen-2025-106818. PubMed PMID:41448680 PubMed Central PMC12750750.
  7. Malhotra, AK, Shakil, H, Karthikeyan, V, Lozano, CS, Witiw, CD, Wilson, JR et al.. Forecasting the Impact of Fully Automated Vehicle Adoption on US Road Traffic Injuries. JAMA Surg. 2025; :. doi: 10.1001/jamasurg.2025.5711. PubMed PMID:41432949 PubMed Central PMC12728724.
  8. Wong, CR, Tu, K, Hernandez, A, Urbach, DR, Witiw, C, Hansen, B et al.. Development and validation of a case identification algorithm for hand trauma patients using health administrative data and the epidemiology of hand trauma in a universal healthcare system. BMJ Open. 2025;15 (12):e105683. doi: 10.1136/bmjopen-2025-105683. PubMed PMID:41397747 PubMed Central PMC12706216.
  9. Chan, V, Gausper, A, Liu, A, Andras, LM, Illingworth, KD, Skaggs, DL et al.. Canadian Spine Society: 25th Annual Scientific Conference, February 25 to 28, 2025, Fairmont Le Manoir Richelieu, La Malbaie, Charlevoix, Que., Canada. Can J Surg. 2025;68 (6suppl3):S58-S132. doi: 10.1503/cjs.020125. PubMed PMID:41386990 PubMed Central PMC12705198.
  10. Lozano, CS, Karthikeyan, V, Shakil, H, Malhotra, AK, Pedro, KM, Reda, L et al.. Patient, Hospital and Geographic Factors Associated With Intraoperative Neuromonitoring for Cervical Spine Surgery: A National Analysis. Spine (Phila Pa 1976). 2025; :. doi: 10.1097/BRS.0000000000005575. PubMed PMID:41277759 .
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Affiliations & Other Activities

Assistant Professor, Division of Neurosurgery, University of Toronto