A5029427833- Orthopaedic implants and arthroplasty
- Total Knee Arthroplasty Outcomes
- Orthopedic Infections and Treatments
- Hip disorders and treatments
- Shoulder Injury and Treatment
- Knee injuries and reconstruction techniques
- Orthopedic Surgery and Rehabilitation
- Elbow and Forearm Trauma Treatment
- Advanced Numerical Analysis Techniques
- Pelvic and Acetabular Injuries
- Lower Extremity Biomechanics and Pathologies
- Spine and Intervertebral Disc Pathology
- Sports injuries and prevention
- Shoulder and Clavicle Injuries
- Rings, Modules, and Algebras
- Cardiac Valve Diseases and Treatments
- Bone fractures and treatments
- Hip and Femur Fractures
- Nerve Injury and Rehabilitation
- Advanced Topics in Algebra
- Medical Malpractice and Liability Issues
- Sarcoma Diagnosis and Treatment
- Spinal Fractures and Fixation Techniques
- Advanced X-ray and CT Imaging
- Solidification and crystal growth phenomena
Hospital for Special Surgery
2015-2025
New York University Langone Orthopedic Hospital
2016-2018
Hudson Simulation Service
2018
Cornell University
2006-2015
RELX Group (United States)
2012
Purdue University West Lafayette
2009
James N. Kirby Foundation
2007
Tufts University
1989-1991
Materials Processing (United States)
1991
Femoroacetabular impingement (FAI) is now recognized as the most common cause of early osteoarthritis in nondysplastic hip. While surgical treatment FAI has demonstrated favorable clinical outcomes, ability an osteoplasty to reliably improve hip kinematics and range motion remains unknown.This study used computer-assisted 3-dimensional (3D) analysis assess differences before after arthroscopic symptomatic FAI.Case series; Level evidence, 4.Ten patients with symptomatic, focal cam and/or...
Background Manual techniques of reproducing a preoperative plan for primary bone tumor resection using rudimentary devices and imprecise localization can result in compromised margins or unnecessary removal unaffected tissue. We examined whether novel technique computer-generated custom jigs more accurately reproduces than standard manual technique. Description Technique Using CT images advanced imaging, reverse engineering, computer-assisted design software, were designed to precisely...
Dislocation following hip arthroplasty remains problematic. While the etiology of dislocation may be multifactorial, implant system design play a role. Using computer aided program, virtual range motion several commonly implanted designs was performed with prosthetic interference representing impingement used as an endpoint. Implants small diameter head size (22 mm) and larger trunion geometry (type II taper) demonstrated in flexion at less than 90 degrees , suggesting increased risk for...
A multibody model of the knee was developed and predicted ligament forces kinematics during passive flexion corroborated subject-specific measurements obtained from a human cadaveric that tested using robotic manipulator. The incorporated novel strategy to estimate slack length fibers based on experimentally measured at full extension included multifiber representations for cruciates. captured (≤ 5.7 N root mean square (RMS) difference), coupled internal rotation 1.6 deg RMS anterior...
Patient-specific flanged acetabular components are utilized to treat failed total hip arthroplasties with severe defects. We previously developed and published a finite element model that investigated the impact of joint center lateralization on construct biomechanics during gait conditions. This consisted patient-specific implant designed address superior-medial defect created in standard pelvic geometry. study aims utilize same examine how cortical shell thickness ischial cancellous bone...
Polyethylene tibial post wear in posterior-stabilized knee designs is a major problem. The Insall-Burstein II (IB PS II) reportedly has severe anterior of the retrieved implants. We hypothesized more placement IB would be reflected greater at face than I. examined 234 inserts using subjective scales to grade damage and wear. Of inserts, 38% demonstrated compared with only 25% I inserts. most prevalent location for was face, whereas sustained mainly on medial face. While not designed...
Impingement of anterior cruciate ligament (ACL) grafts against the femoral notch and posterior (PCL) is thought to be influenced primarily by tunnel position graft orientation. Recent data have implied that native ACL ribbon-shaped.To evaluate 3-dimensional shape cross-sectional area versus compare degree impingement PCL.Cross-sectional study; Level evidence, 3.Bilateral knee magnetic resonance images were analyzed for 27 patients with unilateral bone-patellar tendon-bone (BPTB)...
ABSTRACT Finite element (FE) models are frequently used to assess mechanical interactions between orthopedic implants and surrounding bone. However, FE studies often limited by the small number of bones that modeled; use normal do not reflect altered bone density distributions result from osteoarthritis (OA); application simplified load cases usually based on peak forces without consideration tibiofemoral kinematics. To overcome these limitations, we undertook an integrated approach...
Abstract Background Satisfactory management of bone defects is important to achieve an adequate reconstruction in revision TKA. Metaphyseal cones address such the proximal tibia are increasingly being used; however, biomechanical superiority over traditional techniques like fully cementing implant into defect has not yet been demonstrated. Moreover, although long stems often used bypass defects, efficacy compared with short, cemented when combined metaphyseal remains unclear....