Abstract
We compared gait parameters prior to, at 6months and 1year following total hip arthroplasty (THA) performed via direct anterior approach (DAA) and posterior approach (PA) by a single surgeon in 22 patients. A gait analysis system involving reflective markers, infrared cameras and a multicomponent force plate was utilized. Postoperatively, the study cohort demonstrated improvement in flexion/extension range of motion (ROM) (P=0.001), peak flexion (P=0.005) and extension (P=0.002) moments with no differences between groups. Internal/external ROM improved significantly in the DAA group (P=0.04) with no change in the PA group. THA performed via DAA and PA offers similar improvement in gait parameters with the exception of internal/external ROM which might be related to the release and repair of external rotators during PA THA.
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