Patients with no functional improvement after total knee arthroplasty show different kinematics.

ABSTRACT:

Purpose

As many as 20 % of all patients following total knee arthroplasty are not satisfied with the result. Rotational alignment is one factor thought to affect clinical outcome. The purpose of this study was to assess relationships between prosthesis rotational alignment, function score and knee kinematics after TKA.

Methods

In 80 patients a cemented, unconstrained, cruciate-retaining TKA with a rotating platform was implanted. Rotational alignment was measured using CT-scans. Kinematics was assessed using fluoroscopy images.

Results

Seventy-three patients were available for follow-up after two years. Nine patients had more than 10° rotational mismatch between the femoral and tibial component in the postoperative CT scans. These patients showed significantly worse r

SUBMITTER: Lutzner J 

PROVIDER: S-EPMC3427439 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature