Faculty profile

Christopher Witiw

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Associate ProfessorDepartment of SurgeryUniversity of Toronto

Christopher Witiw

Associate Professor

Department of Surgery

Temerty Faculty of Medicine

University of Toronto

Toronto, Ontario, Canada

Supervision signals

Professors usually supervise graduate students in their department's programs.
15 publications in the last five years, latest in 2026.
Principal investigator on 1 research grant (1 CIHR), most recently in 2022.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

Citations

Collaborators

Grants

Publications by year

Counts cover the publications linked to this profile. Citations and the h-index appear when the source records them.

Education

Master of Science
Doctor of Medicine

Profiles and links

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Signals and details

Research

Read how they describe their research on their University of Toronto profile.

Degenerative Conditions Disability Osteoarthritis Surgical Intervention Work And Earnings

Latest papers

Association of loneliness and social isolation with postoperative outcomes: a retrospective registry study.
British journal of anaesthesia · 2026
Optimization and External Validation of a Deep Learning Model for Segmentation and Quantification of Traumatic Brain Injury Lesions on Head Computed Tomography.
Journal of neurotrauma · 2026
Nonfatal self-injury in the first year after surgery: a population-based epidemiologic study.
British journal of anaesthesia · 2026

All 17 publications

Latest funding

Traumatic spinal cord injury in older adults-access to specialized care and long-term health outcomes
CIHR · 2026 · Co-investigator
$351,900
Development and Testing of the Cervical Myelopathy Severity Index: A Patient Centered Outcome Measurement Tool to Facilitate Improved Clinical Care and Research in Degenerative Cervical Myelopathy
CIHR · 2024 · Co-investigator
$302,175
Effects of Surgical Intervention on Work and Earnings for Patients with Degenerative Conditions of the Spine, Hip and Knee in a National Canadian Cohort
CIHR · 2022 · Nominated PI
$290,699

All 3 grants and awards

17 publications.

Association of loneliness and social isolation with postoperative outcomes: a retrospective registry study.

Philip K, Jolly A, Diep C, Savage RD, Wijeysundera DN, Witiw C, Ladha KS

British journal of anaesthesia2026

DOI: 10.1016/j.bja.2025.09.004 PMID: 41136321

Optimization and External Validation of a Deep Learning Model for Segmentation and Quantification of Traumatic Brain Injury Lesions on Head Computed Tomography.

Mathieu F, Piçarra C, Malhotra A, Srbely J, Monteiro M, Winzeck S, Smith C, Newcombe V, Menon D, Witiw C, Scales D, Pirouzmand F, Glocker B

Journal of neurotrauma2026

DOI: 10.1177/08977151251408798 PMID: 41705651

Nonfatal self-injury in the first year after surgery: a population-based epidemiologic study.

Diep C, Daza JF, Lee S, Witiw C, Vigod S, Wijeysundera DN, Ladha KS

British journal of anaesthesia2026

DOI: 10.1016/j.bja.2025.12.027 PMID: 41577607

Predictors of Vertebral Compression Fracture Following Stereotactic Body Radiation Therapy in SINS Potentially Unstable Spinal Metastases.

Burgess L, Atenafu EG, Zeng KL, Chen H, Dinakaran D, Tseng CL, Detsky J, Soliman H, Mullins J, Larouche J, Witiw C, Maralani P, Whyne C, Hardisty M, Sahgal A

International journal of radiation oncology, biology, physics2026

DOI: 10.1016/j.ijrobp.2025.12.029 PMID: 41591323

Cost-Utility Analysis of Ligament Reconstruction Tendon Interposition Versus Suture Suspension Arthroplasty for Thumb Osteoarthritis

Wong CR, Zhu A, Urbach DR, Retrouvey H, Witiw C, Baltzer HL

Plastic and Reconstructive Surgery, Global Open20254 citations

DOI: 10.1097/gox.0000000000007186

Building a library of acute traumatic spinal cord injury images across Canada: a retrospective cohort study protocol

Rotem-Kohavi N, Humphreys S, Noonan VK, Cheng CL, Guay-Paquet M, Bouthillier M, Valošek J, Karthik EN, Lichtenstein E, Guenther N

BMJ Open20252 citations

DOI: 10.1136/bmjopen-2025-106818

Canadian Spine Society

Chan V, Gausper A, Liu A, Andras LM, Illingworth KD, Skaggs DL, Imbeault R, Dufresne J, Parent S, Deschênes S

Canadian Journal of Surgery2025

DOI: 10.1503/cjs.020125

Prognostic factors for local failure and overall survival in patients with epidural disease at the cauda equina following stereotactic body radiotherapy: a clinical, anatomic and dosimetric analysis.

Zayed S, Ruschin M, Atenafu EG, Chen H, Dinakaran D, Detsky J, Myrehaug S, Soliman H, Witiw C, Larouche J, Maralani P, Sahgal A, Tseng CL

Journal of neuro-oncology2025

DOI: 10.1007/s11060-025-05157-z PMID: 40670813

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.

Wong CR, Tu K, Hernandez A, Urbach DR, Witiw C, Hansen B, Ko A, Tsai P, Baltzer H

BMJ open2025

DOI: 10.1136/bmjopen-2025-105683 PMID: 41397747

Operative neurosurgery for traumatic subdural hematoma: association between trauma center variation and patient outcomes.

Vattipally VN, Ran KR, Mukherjee D, Suarez JI, Huang J, Bettegowda C, Haut ER, Sakran JV, Witiw C, Gomez D, Azad TD, Byrne JP

Journal of neurosurgery2025

DOI: 10.3171/2025.3.jns242811 PMID: 40712171

Profile data last refreshed on September 26, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Christopher Witiw

Research

Latest papers

Latest funding

Association of loneliness and social isolation with postoperative outcomes: a retrospective registry study.

Optimization and External Validation of a Deep Learning Model for Segmentation and Quantification of Traumatic Brain Injury Lesions on Head Computed Tomography.

Nonfatal self-injury in the first year after surgery: a population-based epidemiologic study.

Predictors of Vertebral Compression Fracture Following Stereotactic Body Radiation Therapy in SINS Potentially Unstable Spinal Metastases.

Cost-Utility Analysis of Ligament Reconstruction Tendon Interposition Versus Suture Suspension Arthroplasty for Thumb Osteoarthritis

Building a library of acute traumatic spinal cord injury images across Canada: a retrospective cohort study protocol

Canadian Spine Society

Prognostic factors for local failure and overall survival in patients with epidural disease at the cauda equina following stereotactic body radiotherapy: a clinical, anatomic and dosimetric analysis.

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.

Operative neurosurgery for traumatic subdural hematoma: association between trauma center variation and patient outcomes.

Traumatic spinal cord injury in older adults-access to specialized care and long-term health outcomes

Development and Testing of the Cervical Myelopathy Severity Index: A Patient Centered Outcome Measurement Tool to Facilitate Improved Clinical Care and Research in Degenerative Cervical Myelopathy

Effects of Surgical Intervention on Work and Earnings for Patients with Degenerative Conditions of the Spine, Hip and Knee in a National Canadian Cohort

Frequent collaborators

Arjun Sahgal

Jefferson Wilson

Sean Christie

Mark Driscoll

Eve Tsai

Jetan Badhiwala

Maryse Bouchard

Neil Duncan

Deepak Dinakaran

Maryse Fortin

David Lebel

Parham Rasoulinejad

Francois Mathieu

Mohit Kapoor

Teresa To

Frederick Zeiler

Markian Pahuta

Michael Fehlings

Michael Hardisty

Patrick Thornley

Koren Roach

Sean Barry

Mark Ruschin

Ervin Sejdic

Michael Asmussen

Andrew Howard

Wojtek Michalowski

Christopher Sun

Christopher Bailey

Sevan Hopyan

Karen Tu

Andrea Doria

Eric Parent

Simone Vigod

Brian Kwon

Sarvesh Logsetty

Julien Cohen-Adad

Damon Scales

Susan Jaglal

Janet Ronsky