Faculty profile

Stephen Lewis

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Associate ProfessorDepartment of SurgeryUniversity of Toronto

Stephen Lewis

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.
115 publications in the last five years, latest in 2026.
Senior (last) author on 11 recent papers, a sign of leading a research group.

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

Academic metrics

283

Publications

6,919

Citations

227

Collaborators

Grants

Publications by year

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

Profiles and links

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Signals and details

Research

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

Latest papers

Extent of Fatty Infiltration of Lumbar Paraspinal Muscles as a Proxy for Frailty and Its Relationship with Perioperative Outcomes in Patients Undergoing Elective Spinal Surgery.
Global spine journal · 2026
AO Spine Knowledge Forums Promote Collaboration and Elevate the Impact of Research: A Bibliometric Analysis.
Global spine journal · 2026
Adipofascial Flap Coverage of Lumbosacral Soft Tissue Defect With Persistent CSF Leak in Revision Spine Surgery
JBJS Case Connector · 2026 · first author

All 283 publications

Latest funding

Biomechanical determinants of surgical outcomes in adolescents with a Paediatric Spinal deformity.
CIHR · 2010 · Co-investigator
$87,752

All 1 grants and awards

From the 150 most recent of 283 publications.

Extent of Fatty Infiltration of Lumbar Paraspinal Muscles as a Proxy for Frailty and Its Relationship with Perioperative Outcomes in Patients Undergoing Elective Spinal Surgery.

Kulkarni R, Walton C, D'Amico C, Bertolino M, Silvestre J, Rivas G, Lewis S, Nielsen C, Glaser J, Reitman C, Lawrence J, Ravinsky R

Global spine journal20264 citationsOpen Access

DOI: 10.1177/21925682251359536 PMID: 40634128

AO Spine Knowledge Forums Promote Collaboration and Elevate the Impact of Research: A Bibliometric Analysis.

de Souza DN, Kurland DB, Vialle L, Schnake KJ, Kurpad SN, Lewis SJ, Schroeder GD, Yoon ST, Boriani S, Gokaslan Z, Rhines LD, Sahgal A, Fisher C, Laufer I

Global spine journal20263 citationsOpen Access

DOI: 10.1177/21925682251351012 PMID: 40513712

Adipofascial Flap Coverage of Lumbosacral Soft Tissue Defect With Persistent CSF Leak in Revision Spine Surgery

Stephen J. Lewis, Fan Jiang, Ian H.Y. Wong, Hailey Bensky, Siba Haykal

JBJS Case Connector2026First author

DOI: 10.2106/jbjs.cc.25.00670 PMID: 42531425

Listhesis and Spinopelvic Inclination of Upper Instrumented Vertebra Region and the Implications on Proximal Junctional Kyphosis.

Diebo BG, Balmaceno-Criss M, Daher M, Lafage R, Singh M, Ames CP, Burton D, Lewis S, Klineberg EO, Eastlack R, Gupta M, Mundis G, Gum JL, Hamilton KD, Hostin R, Passias PG, Protopsaltis T, Kebaish K, Shaffrey C, Smith JS, Line B, Bess S, Kim HJ, Lenke LG, Schwab F, Lafage V, Daniels AH, International Spine Study Group

Spine2026

DOI: 10.1097/brs.0000000000005484 PMID: 40898909

Timing of thromboprophylaxis in acute spinal cord injury patients: a TQIP study in 15,960 patients.

Abbas A, Koucheki R, Toor J, Fowler R, Nathens AB, Yee A, Lewis S, Wilson JR, Witiw CD, Fehlings MG, Whyne C, Badhiwala J

The spine journal : official journal of the North American Spine Society2026Open Access

DOI: 10.1016/j.spinee.2026.04.017 PMID: 41985683

A Global Survey on Intra-operative Neuromonitoring (IONM) Practices, Attitudes Towards Its Use, and Barriers Among Spine Surgeons.

Abolfotouh S, Alnouri M, Lewis S, Kumar K, Abolfotouh MA

Global spine journal2026Open Access

DOI: 10.1177/21925682261465345 PMID: 42359614

Understanding the Research Needs and Educational Methods of Surgeons to Help Guide Future Spine Deformity Research: A Survey of AO Spine Members

Marta M. Morawska, Nicole Lewis, Justin S. Smith, David W. Polly, Saumyajit Basu, Eric Klineberg, So Kato, Sigurd Berven, Ferrán Pellisé, Yong Qiu, Ahmet Alanay, Çağlar Yılgör, Michael Kelly, Kenny Kwan, Lawrence G. Lenke, Stephen J. Lewis, AO Spine Knowledge Forum Deformity

Global Spine Journal2026Open Access

DOI: 10.1177/21925682261482073 PMID: 42664305

Clinical and Economic Burden of Poor Bone Health in Adult Spinal Deformity Surgery: A Multicenter Cohort Study.

Passias PG, Daher M, Chatzis KD, Lafage V, Lafage R, Nayak P, Schoenfeld A, Khalife M, Haddad S, Ferrero E, Line B, Diebo B, Daniels AH, Mullin JP, Hamilton DK, Buell T, Okonkwo DO, Gum J, Theologis A, Mummaneni P, Chou D, Mundis G, Lau D, Bunch J, Carlson B, Lewis S, Scheer J, Eastlack R, Kebaish K, Gupta M, Kim HJ, Soroceanu A, Mikula A, Protopsaltis T, Yagi M, Hosogane N, Lenke L, Hostin R, Smith J, Klineberg E, Ames C, Schwab F, Bess S, Shaffrey C, International Spine Study Group

Spine2026

DOI: 10.1097/brs.0000000000005785 PMID: 42430752

Suspected contaminant source and early deep wound infections in posterior instrumented fusion involving the lumbosacral region: a multicenter analysis.

Ivasyk I, Shenoy DA, Yang LZ, Hu B, Lewis S, Klineberg E, Lenke LG, Smith JS, Polly D, Nielsen C, Lehman RA, Sardar ZM, Shaffrey CI, Rocos B

Spine deformity2026

DOI: 10.1007/s43390-026-01418-7 PMID: 42143193

Preoperative alignment and risk of proximal junctional failure : a framework for upper instrumented vertebra selection in adult spinal deformity.

Hills J, Lenke LG, Smith JS, Shaffrey CI, Lafage V, Lafage R, Bess S, Kelly MP, International Spine Study Group, International Spine Study Group member, Turner J, Uribe J, Daniels A, Diebo B, Lenke LG, Chou D, Shaffrey CI, Passias PG, Hostin R, Kim HJ, Kebaish K, Lee S, Burton DC, Carlson B, Bunch J, Schwab FJ, Lafage V, Lafage R, Protopsaltis TS, Lau D, Bess S, Line B, Kelly MP, Mundis GM, Eastlack RK, Klineberg EO, Ames CP, Mumanneni P, Theologis A, Alan N, Yoon J, Soroceanu A, Gum JL, Hamilton K, Okonkwo D, Buell T, Lewis S, Smith JS, Gupta MC, Greenberg J, Anand N, Scheer J, Fu KM, Park P, Javidan Y, Wang M, Stephens B, Zuckerman S

The bone & joint journal2026

DOI: 10.1302/0301-620x.108b7.bjj-2025-1405.r1 PMID: 42379558

Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.

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Stephen Lewis

Research

Latest papers

Latest funding

Extent of Fatty Infiltration of Lumbar Paraspinal Muscles as a Proxy for Frailty and Its Relationship with Perioperative Outcomes in Patients Undergoing Elective Spinal Surgery.

AO Spine Knowledge Forums Promote Collaboration and Elevate the Impact of Research: A Bibliometric Analysis.

Adipofascial Flap Coverage of Lumbosacral Soft Tissue Defect With Persistent CSF Leak in Revision Spine Surgery

Listhesis and Spinopelvic Inclination of Upper Instrumented Vertebra Region and the Implications on Proximal Junctional Kyphosis.

Timing of thromboprophylaxis in acute spinal cord injury patients: a TQIP study in 15,960 patients.

A Global Survey on Intra-operative Neuromonitoring (IONM) Practices, Attitudes Towards Its Use, and Barriers Among Spine Surgeons.

Understanding the Research Needs and Educational Methods of Surgeons to Help Guide Future Spine Deformity Research: A Survey of AO Spine Members

Clinical and Economic Burden of Poor Bone Health in Adult Spinal Deformity Surgery: A Multicenter Cohort Study.

Suspected contaminant source and early deep wound infections in posterior instrumented fusion involving the lumbosacral region: a multicenter analysis.

Preoperative alignment and risk of proximal junctional failure : a framework for upper instrumented vertebra selection in adult spinal deformity.

Biomechanical determinants of surgical outcomes in adolescents with a Paediatric Spinal deformity.

Frequent collaborators

Michael Fehlings

Eric Massicotte

David Lebel

Rajiv Gandhi

Anthony Perruccio

Peter Coyte

Arjun Sahgal

Albert Yee

Sean Christie

Christopher Bailey

Jefferson Wilson

Stefan Parent

Brian Kwon

Thomas Oxland

Markian Pahuta

Jérôme Paquet

John Street

Kevin Gurr

Eve Tsai

Christopher Witiw

Aaron Michael Gazendam

Ming Tsao

Eugene Yu

Hossein Mehdian

Ahmed Cherry

Lynda Bélanger

Nicholas Shkumat

Christian Zaarour

Nizar Mahomed

Julia Sorbara