Allan Liew

ORCID: 0000-0001-9107-9241
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About
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Research Areas
  • Hip and Femur Fractures
  • Pelvic and Acetabular Injuries
  • Bone fractures and treatments
  • Cardiac, Anesthesia and Surgical Outcomes
  • Orthopedic Surgery and Rehabilitation
  • Shoulder Injury and Treatment
  • Knee injuries and reconstruction techniques
  • Lower Extremity Biomechanics and Pathologies
  • Foot and Ankle Surgery
  • Hip disorders and treatments
  • Musculoskeletal pain and rehabilitation
  • Shoulder and Clavicle Injuries
  • Sports injuries and prevention
  • Anesthesia and Pain Management
  • Osteoarthritis Treatment and Mechanisms
  • Reconstructive Surgery and Microvascular Techniques
  • Spinal Fractures and Fixation Techniques
  • Elbow and Forearm Trauma Treatment
  • Nerve Injury and Rehabilitation
  • Pediatric Pain Management Techniques
  • Urinary Tract Infections Management
  • Spine and Intervertebral Disc Pathology
  • Mental Health and Patient Involvement
  • Opioid Use Disorder Treatment
  • Emergency and Acute Care Studies

University of Ottawa
2011-2025

McMaster University
2024-2025

Ottawa Hospital
2007-2023

University of Toronto
2021

Western University
1997-2007

Hospital for Special Surgery
2001-2005

NewYork–Presbyterian Hospital
2005

City University of New York
2005

New York Hospital Queens
2005

St Joseph's Health Centre
2000

Objective: This study was designed to evaluate the postimpact response of articular cartilage in rabbit knee after a single traumatic episode. Design: A novel servo-controlled Rabbit Impact Test System (RITS) developed apply well-defined trauma femoral condyle knee. The RITS first used an vitro determine appropriate stress cause damage without bone fracture. Viable knees (n = 18) were impacted with stresses 15 50 MPa at rate 420 MPa/s, latter corresponding joint impact rates commonly seen...

10.1097/01.bot.0000162768.83772.18 article EN Journal of Orthopaedic Trauma 2005-07-29

To assess the accuracy of a new radiographic measurement distal tibia and fibula on lateral view ankle in normal adults: anteroposterior tibiofibular (APTF) ratio.Thirty adults without history trauma or disease were included. Bilateral ankles x-rayed with true ankle. A line from anterior tibial physis scar to posterior cortex, passing by intersection was drawn. The APTF ratio calculated as segment segment. measurements done 3 independent evaluators. Intra- interobserver reliability obtained...

10.1097/bot.0b013e31826623cc article EN Journal of Orthopaedic Trauma 2012-07-06
Kyle Gouveia Sheila Sprague Jodi Gallant Gina Del Fabbro Jordan Leonard and 95 more Sofia Bzovsky Paula McKay Jason W. Busse Mohit Bhandari Gerard P. Slobogean Lehana Thabane Randi E. McCabe Emil H. Schemitsch Gordon Guyatt P.J. Devereaux Ida Leah Gitajn Matilda E. Nowakowski Eleni G. Hapidou Delia Chiaramonte Henrick Kehlet James S. Khan Aresh Sepehri Natalie Fleming Christy Shibu Diane Heels‐Ansdell Brad Petrisor Dale Williams Bill Ristevski Jamal Al-Asiri Herman Johal Matthew Denkers Kris Rajaratnam Sarah MacRae Kaitlyn Pusztai Sara Renaud Nicki Johal Steven Papp Karl‐André Lalonde Bradley Meulenkamp Allan Liew Manisha Mistry Braden Gammon Wade Gofton Geoffrey Wilkin Melanie Dodd-Moher Dávid Puskás Travis Marion Tina Lefrancois Jubin Payandeh Claude Cullinan Tracy Wilson Kurt Droll Michael Riediger Rabail Siddiqui Shalyn Littlefield Simrun Chahal Paige Wagar Prism S. Schneider Tosin Ogunleye Tanya Cherppukaran Karin Lienhard Nicholas Smith Sarah Anthony Krista Butt LaShann Selby Murali Kovvur Joshua E. Lawrence Skyler Sampson Kristin Turner Todd Jaeblon Haley K. Demyanovich Sneh Talwar Caroline Benzel Theresa A. Chockbengboun Devin S. Mullin Paul J. Appleton John J. Wixted Edward K. Rodriguez Michael F. McTague Katiri Wagner Kristina Brackpool Kate Hegermiller Nhi Nguyen Roman M. Natoli Courteney L. Fentz Maricela Diaz Jill Niceley Tammy Garrett Kyle J. Jeray Thomas M. Schaller Michael S. Sridhar John D. Adams Richard W. Gurich Stephanie L. Tanner Kyle Adams Michelle Donohue Emily Bray Calleigh Brignull Harper Sprouse Christina Tieszer

Extremity fractures are common, and most managed operatively; however, despite successful reduction, up to half of patients report persistent post-surgical pain. Furthermore, psychological factors such as stress, distress, anxiety, depression, catastrophizing, fear-avoidance behaviors have been associated with the development chronic The purpose this pilot study was examine feasibility a randomized controlled trial determine effect in-person cognitive behavioral therapy (CBT) vs. usual care...

10.1186/s40814-023-01430-y article EN cc-by Pilot and Feasibility Studies 2024-01-06
Kyle Gouveia Sheila Sprague Jodi Gallant Sarah MacRae Gina Del Fabbro and 90 more Sofia Bzovsky Paula McKay Herman Johal Jason W. Busse Mohit Bhandari Gerard P. Slobogean Lehana Thabane Randi E. McCabe Emil H. Schemitsch Gordon Guyatt PJ Devereaux Lehana Thabane Mohit Bhandari Ida Leah Gitajn Gerard P. Slobogean Emil H. Schemitsch Randi E. McCabe Matilda E. Nowakowski Eleni G. Hapidou Delia Chiaramonte Henrick Kehlet James S. Khan Matilda E. Nowakowski Aresh Sepehri Natalie Fleming Christy Shibu Diane Heels‐Ansdell Brad Petrisor Dale Williams Bill Ristevski Jamal Al-Asiri Matthew Denkers Kris Rajaratnam Kaitlyn Pusztai Sara Renaud Nicki Johal Steven Papp Karl‐André Lalonde Bradley Meulenkamp Allan Liew Manisha Mistry Braden Gammon Wade Gofton Geoffrey Wilkin Melanie Dodd-Moher Prism S. Schneider Tosin Ogunleye Tanya Cherppukaran Karin Lienhard Nicholas Smith Sarah Anthony Krista Butt Gerard P. Slobogean LaShann Selby Murali Kovvur Joshua E. Lawrence Skyler Sampson Kristin Turner Todd Jaeblon Haley K. Demyanovich Sneh Talwar Caroline Benzel Ida Leah Gitajn Theresa A. Chockbengboun Devin S. Mullin Paul J. Appleton John J. Wixted Edward K. Rodriguez Michael F. McTague Katiri Wagner Kristina Brackpool Kate Hegermiller Nhi Nguyen Roman M. Natoli Courteney L. Fentz Maricela Diaz Jill Niceley Tammy Garrett Jonathan Robin Kyle J. Jeray Thomas M. Schaller Michael S. Sridhar John D. Adams Richard W. Gurich Stephanie L. Tanner Kyle Adams Michelle Donohue Emily Bray Calleigh Brignull Harper Sprouse

Outcomes following surgery to operatively manage extremity fractures are variable, and up two-thirds of patients report chronic post-surgical pain. Preliminary evidence suggests that psychotherapy directed at improving coping skills reducing somatic vigilance may improve outcomes among fracture patients. The objective this pilot study was test the feasibility acceptability a randomized controlled trial comparing an online cognitive behavioural therapy (CBT) program versus usual care in with...

10.1186/s40814-024-01592-3 article EN cc-by-nc-nd Pilot and Feasibility Studies 2025-01-11

This propensity-matched cohort study aimed to determine if adding adductor canal block (ACB) local infiltration analgesia (LIA) reduces immediate postoperative opioid use in ACL reconstruction and assess variations based on graft type. retrospective analyzed reconstructions performed from 2019 2021. Patients were included they received either LIA alone or a combination of ACB. demographic surgical factors, perioperative consumption was assessed. Subgroup analysis conducted autograft type...

10.1016/j.arthro.2025.01.042 article EN cc-by-nc-nd Arthroscopy The Journal of Arthroscopic and Related Surgery 2025-02-01

OBJECTIVES: To evaluate a new compartment pressure monitor reporting continuous pressures and its contribution to Acute Compartment Syndrome (ACS) diagnosis. METHODS: Design : Multicenter, non-randomized, prospective study. Setting: Six Level-I Trauma Centers. Patient Selection Criteria: Enrolled were patients with acute long bone fractures (OTA 11-13, 2R, 2U, 31-33, 41-43) where the Micro Electric Mechanical Sensor (MEMS) device was inserted either pre- or post-operatively into most likely...

10.1097/bot.0000000000002980 article EN Journal of Orthopaedic Trauma 2025-04-08

Proximal humerus fractures are the third most common fracture in elderly population and expected to increase due aging population. Surgical fixation with locking plate technology has increased over last decade despite a lack of proven superiority literature. Three previous randomized controlled trials have not shown difference patient-centered outcomes when comparing non-operative treatment open reduction internal fixation. Low patient enrollment other methodological concerns however limit...

10.1186/s12891-018-2223-3 article EN cc-by BMC Musculoskeletal Disorders 2018-08-18

➤ A preoperative computed tomography scan may be considered to improve surgical planning, as secondary fracture lines are poorly visualized on radiographs. Oblique internal and external rotation fluoroscopic views used intraoperatively fully evaluate the medial lateral facet articular reduction if direct assessment by visualization or palpation is not completed. Partial patellectomy for inferior pole fractures should avoided, bone-preserving procedures recommended. arthrotomy of...

10.2106/jbjs.20.01478 article EN Journal of Bone and Joint Surgery 2021-09-27

Negative-pressure wound therapy (NPWT) can improve fasciotomy closure, but its effects on skeletal muscle are largely unknown. The purpose of this study was to evaluate NPWT after for compartment syndrome in an animal model and assess regional variability fiber regeneration.Compartment induced the hindlimb twenty-two adult female pigs with use a continuous intracompartmental serum-infusion model. Fasciotomy performed six hours, animals were randomized receive either wet-to-dry gauze...

10.2106/jbjs.m.01010 article EN Journal of Bone and Joint Surgery 2014-08-20

Objective: To determine if geriatric intertrochanteric hip fracture patients achieve equivalent postoperative functional status after management with either a short (180-200 mm) or long (260-460 InterTAN intramedullary device. Design: Retrospective review of prospective randomized control trial. Setting: Four Level I Trauma Centers. Patients/Participants: One hundred eight OTA/AO classification 31A-1 and 31A-2 fractures were included in the study. Intervention: Internal fixation using an IT...

10.1097/bot.0000000000001409 article EN Journal of Orthopaedic Trauma 2019-04-01

(1) Assess outcomes of acetabular open reduction and internal fixation (ORIF) in the elderly, (2) investigate factors influencing outcome, (3) compare after low-energy high-energy mechanisms injury.Retrospective case series.Level 1 trauma center.Seventy-eight patients older than 60 years (age: 70.1 ± 7.4; 73.1% males).ORIF for fractures.Complications, reoperation rates, Oxford Hip Score (OHS), joint preservation development symptomatic osteoarthritis. Cases with osteoarthritis, OHS < 34,...

10.1097/bot.0000000000002224 article EN Journal of Orthopaedic Trauma 2021-07-20

There have been no studies assessing the optimal biomechanical tension of suture button constructs. The purpose this study was to assess tensioning fixation and its ability maintain reduction under loaded conditions using a stress computed tomography (CT) model.Ten cadaveric lower limbs disarticulated at knee were used. placed in modified ankle load frame that allowed for application sustained torsional axial or combined torsional/axial loads. syndesmosis deep deltoid ligaments complex...

10.1097/bot.0000000000000737 article EN Journal of Orthopaedic Trauma 2016-10-15
Jason W. Busse Sheila Sprague Gina Del Fabbro Paula McKay Lehana Thabane and 95 more Randi E. McCabe Matilda E. Nowakowski Christy Shibu Natalie Fleming Herman Johal Gerard P. Slobogean Roman M. Natoli Ida Leah Gitajn Prism S. Schneider P.J. Devereaux Emil H. Schemitsch Mohit Bhandari Gordon Guyatt Eleni G. Hapidou Delia Chiaramonte Henrick Kehlet James S. Khan Aaron J. Johnson Diane Heels‐Ansdell Sofia Bzovsky Brad Petrisor Dale Williams Bill Ristevski Jamal Al-Asiri Matthew Denkers Kris Rajaratnam Jodi Gallant Sarah MacRae Kaitlyn Pusztai Sara Renaud Nicki Johal Steven Papp Karl‐André Lalonde Bradley Meulenkamp Allan Liew Manisha Mistry Braden Gammon Wade Gofton Geoffrey Wilkin Melanie Dodd-Moher Dávid Puskás Travis Marion Tina Lefrancois Jubin Payandeh Claude Cullinan Tracy Wilson Kurt Droll Michael Riediger Rabail Siddiqui Shalyn Littlefield Simrun Chahal Paige Wagar Prism S. Schneider Tosin Ogunleye Tanya Cherppukaran Karin Lienhard Nicholas Smith Sarah Anthony Krista Butt LaShann Selby Murali Kovvur Joshua E. Lawrence Skyler Sampson Kristin Turner Todd Jaeblon Haley K. Demyanovich Sneh Talwar Caroline Benzel Theresa A. Chockbengboun Devin S. Mullin Logan M. Bateman Melanie L. Christian Peter DePalo Paul J. Appleton John J. Wixted Edward K. Rodriguez Michael F. McTague Katiri Wagner Kristina Brackpool Kate Hegermiller Nhi Nguyen Courteney L. Fentz Maricela Diaz Jill Niceley Kyle J. Jeray Thomas M. Schaller Michael S. Sridhar John D. Adams Richard W. Gurich Stephanie L. Tanner Kyle Adams Michelle Donohue Emily Bray Calleigh Brignull Harper Sprouse

Chronic, non-cancer pain affects approximately 20-30% of the population in North America, Europe, and Australia, with surgery trauma frequently cited as inciting events. Prospective studies fracture patients have demonstrated an association between somatic pre-occupation, poor coping, low recovery expectations following persistent pain, functional limitations, lower rates return to work. Psychological interventions, such cognitive behavioural therapy (CBT), that are designed modify unhelpful...

10.1186/s13063-022-06835-3 article EN cc-by Trials 2022-10-22
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