ACADEMIC ORTHOPEDIC RESEARCH
Two year follow up on the rotating platform total knee arthroplasty: Performed a two year follow up to determine the radiographic parameters, patient function, and knee function after performing a P.F.C. Sigma rotating platform total knee arthroplasty. X-rays were evaluated using the Knee Society Roentgenographic Evaluation and Scoring System. Functional score and knee score were evaluated using the Knee Society Clinical Rating System.
In vitro grip simulation: Redesigned an arrangement of pneumatic driven actuators used to simulate intrinsic minus grip in cadaver arms.
Force analysis across the wrist: Analyzed the force transfer down the dorsal and volar cortices of the intact distal radius in varying degrees of wrist flexion/extension and at varying grip strengths. This information was used to study the mechanism of injury and instabilities of distal dorsally comminuted radius fractures.
Stability analysis of distal dorsally comminuted radius fractures: Performed wedge osteotomies of varying thickness on the distal dorsal surface of the radius to simulate comminuted fractures. At various grip strengths and wrist positions the forces, displacement, and angulation were measured at the simulated fracture site. This data was then used to determine the radiographic criterion for fracture instability, how it varies with wrist position, and what passive and active restrictions should be placed on these patients.