The association between Femoral Tilt and impingement-free range-of-motion in total hip arthroplasty.

ABSTRACT:

Background

There is a complex interaction among acetabular component position and antetorsion of the femoral stem in determining the maximum, impingement-free prosthetic range-of-motion (ROM) in total hip arthroplasty (THA). By insertion into the femoral canal, stems of any geometry follow the natural anterior bow of the proximal femur, creating a sagittal Femoral Tilt (FT). We sought to study the incidence of FT as measured on postoperative computed tomography scans and its influence on impingement-free ROM in THA.

Methods

The incidence of the postoperative FT was evaluated on 40 computed tomography scans after cementless THA. With the help of a three-dimensional computer model of the hip, we then systematically analyzed the effects of FT on femoral antetorsion and its infl

SUBMITTER: Renkawitz T 

PROVIDER: S-EPMC3416712 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature