Department of Biomechanics

Research Studies

Biomechanical Analysis of Femoral Range of Motion Following Total Hip Arthroplasty

Femoral range of motion (ROM), described as the attainable degree of flexion prior to impingement, can be reduced following total hip arthroplasty, causing impingement of the femoral and acetabular components during normal physiological motion. This impingement has been associated with the dislocation of the femoral component, abnormal wear of the femoral and acetabular components, and early device failure. This study examines the role of implant size, orientation, and position in relation to the attainable femoral ROM using reconstructed cadaver CT data.

Movie of simulated femoral range of motion analysis using CT-reconstructed cadaver anatomy:
 

Video thumbnail
Click image to play movie

 

 
Modulus map of the hip