- Total Knee Arthroplasty Outcomes
- Knee injuries and reconstruction techniques
- Osteoarthritis Treatment and Mechanisms
- Lower Extremity Biomechanics and Pathologies
- Sports injuries and prevention
- Shoulder Injury and Treatment
- Orthopaedic implants and arthroplasty
- Orthopedic Surgery and Rehabilitation
- Tendon Structure and Treatment
- Bone fractures and treatments
- Musculoskeletal synovial abnormalities and treatments
- Hip disorders and treatments
- Musculoskeletal Disorders and Rehabilitation
- Medical and Biological Sciences
- Foot and Ankle Surgery
- Adhesion, Friction, and Surface Interactions
- Diabetic Foot Ulcer Assessment and Management
- Bone and Joint Diseases
- Anesthesia and Pain Management
- Musculoskeletal pain and rehabilitation
- Advanced Fiber Optic Sensors
- Muscle activation and electromyography studies
- Tribology and Wear Analysis
- Nail Diseases and Treatments
- Dupuytren's Contracture and Treatments
Western University
2016-2025
Fowler Kennedy Sport Medicine Clinic
2016-2025
London Health Sciences Centre
2017-2024
Vanderbilt University
2024
University of California, Los Angeles
2024
Brown University
2022
Western University of Health Sciences
2016-2022
Lawson Health Research Institute
2021-2022
Slocum Research and Education Foundation
2019-2022
Vanderbilt University Medical Center
2017-2021
Purpose To determine the effects of increasing anterior-posterior (A-P) tibial slope on knee kinematics and in situ forces cruciate ligaments. Methods Ten cadaveric knees were studied using a robotic testing system three loading conditions: (1) 200 N axial compression; (2) 134 A-P load; (3) combined loads. Resulting determined before after 5-mm anterior opening wedge osteotomy. each ligament determined. Results Tibial was increased from 8.8 ± 1.8 ° to 13.2 2.1 °, causing an shift resting...
Background and Purpose Although various hop tests have been proposed as performance-based outcome measures following anterior cruciate ligament (ACL) reconstruction, limited reports of their measurement properties exist. The purpose this study was to investigate the reliability longitudinal validity data obtained from during rehabilitation after ACL reconstruction. Subjects Forty-two patients, 15 45 years age, who had undergone reconstruction participated in study. Methods Measures design...
The efficacy of arthroscopic surgery for the treatment osteoarthritis knee is unknown.We conducted a single-center, randomized, controlled trial in patients with moderate-to-severe knee. Patients were randomly assigned to surgical lavage and débridement together optimized physical medical therapy or alone. primary outcome was total Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) score (range, 0 2400; higher scores indicate more severe symptoms) at 2 years follow-up....
Background: To date, studies directly comparing the rerupture rate in patients with an Achilles tendon rupture who are treated surgical repair nonoperatively have been inconclusive but pooled relative risk of favored repair. In all one study, limb was immobilized for six to eight weeks. Published animals and humans shown a benefit early functional stimulus healing tendons. The purpose present study compare outcomes acute operative accelerated rehabilitation similar alone. Methods: Patients...
Background: Most surgeons believe that graft choice for anterior cruciate ligament (ACL) reconstruction is an important factor related to outcome; however, revision may be limited due previously used grafts. Hypotheses: Autograft use would result in increased sports function, activity level, and decreased osteoarthritis symptoms (as measured by validated patient-reported outcome instruments). failure reoperation rate 2 years after ACL reconstruction. Study Design: Cohort study; Level of...
Previously reported complications in medial opening wedge (MOW) high tibial osteotomy (HTO) vary considerably both rate and severity.(1) To determine the rates of adverse events MOW HTO classified into different grades severity based on treatments required (2) to compare patient-reported outcomes between event classifications.Case series; Level evidence, 4.All patients receiving at a single medical center from 2005 2009 were included. Internal fixation was used all cases, with either...
Revision ACL surgery has become increasingly common. Successful revision requires a thorough preoperative evaluation, including detailed history and physical radiographic examination. Preoperative planning is imperative for successful outcome, as it limits the potential repeating errors that led to failure of primary procedure. This begins with determination mechanism failure. Often, well secondary cause can be identified. Determination etiology first step in carefully constructed treatment...
Background Previous studies have shown that increasing tibial slope can shift the resting position of tibia anteriorly. As a result, sagittal osteotomies alter recently been proposed for treatment posterior cruciate ligament (PCL) injuries. Hypotheses Increasing with an osteotomy shifts anteriorly in PCL-deficient knee, thereby partially reducing “sag” associated PCL injury. This from increased causes decrease translation compared knee response to and axial compressive loads. Study Design...
Background: At the time of anterior cruciate ligament (ACL) reconstruction, there are usually concurrent meniscal and articular cartilage injuries. It is unclear if a significant difference between intra-articular injuries at primary ACL reconstruction compared with revision reconstruction. Purpose: To compare found surgery to determine associations specific findings. Study Design: Cohort study (prevalence); Level evidence, 2. Methods: Primary surgeries were identified from Multicenter...
Abstract Objective To estimate the test–retest reliability of peak external knee adduction moment during walking in patients with medial compartment osteoarthritis (OA), and to describe interpretation reported values. Methods A total 31 diagnosed OA confined primarily underwent quantitative gait analyses 2 separate test sessions at least 24 hours apart within 1 week. The was calculated for each patient session based on mean 5 trials. Reliability estimated using intraclass correlation...
Abstract Objective To evaluate the effect of medial opening wedge high tibial osteotomy on gait, radiographic, and patient‐reported outcomes over a 2‐year postoperative period in patients with varus alignment compartment knee osteoarthritis, to identify significant predictors outcome. Methods We used an observational cohort study design prospectively administered 3‐dimensional quantitative gait analysis, hip ankle weight‐bearing radiographs, preoperatively 6, 12, 18, 24 months...
The factors that lead to patients failing multiple anterior cruciate ligament (ACL) reconstructions are not well understood.Multiple-revision ACL reconstruction will have different characteristics than first-time revision in terms of previous and current graft selection, mode failure, chondral/meniscal injuries, surgical charactieristics.Case-control study; Level evidence, 3.A prospective multicenter database was utilized for the time period from March 2006 June 2011. Patients were divided...
Background Radiographic measures of lower limb malalignment are used to indicate abnormal loading the knee and plan corrective procedures. Hypotheses Weightbearing status during hip-to-ankle radiographs will significantly affect measures; in single-limb standing be most highly correlated external adduction moment gait, a proposed dynamic measure functional joint load. Study Design Controlled laboratory study. Methods Mechanical axis angle was measured 40 patients with varus gonarthrosis from...
This study evaluated the reliability of lower limb frontal plane alignment measures obtained from plain radiographs measured manually and digitized images using a custom computer software package (TheHTO Pro; Fowler Kennedy Sport Medicine Clinic, London, Ontario, Canada). Radiographic measurements used in planning high tibial osteotomy, including mechanical axis angle deviation, were on 42 hip-to-ankle two separate occasions by different raters (A.V.S., J.J.D.). Intraclass correlation...
Background Despite a lack of evidence for their effectiveness, functional knee braces are commonly prescribed to patients after anterior cruciate ligament (ACL) reconstruction. Purpose This trial was conducted compare postoperative outcomes in using an ACL brace and neoprene sleeve. Hypothesis Patients will have superior than those Study Design Randomized controlled clinical trial; Level evidence, 1. Methods One hundred fifty were randomized receive (n = 76) or sleeve 74) at 6-week visit...
Background: Revision anterior cruciate ligament (ACL) reconstruction has been documented to have worse outcomes compared with primary ACL reconstructions. Purpose/Hypothesis: The purpose of this study was determine if the prevalence, location, and/or degree meniscal and chondral damage noted at time revision predicts activity level, sports function, osteoarthritis symptoms 2-year follow-up. hypothesis that loss high-grade will result in lower levels, decreased participation, more pain,...