Article

The objective of the present study was to investigate loading of the
operated leg during quiet standing and sit-to-stand (STS) movement for 1 year
after total hip arthroplasty (THA). METHODS: One hundred and fifty-eight patients
with end-stage hip osteoarthritis (OA) who had undergone unilateral primary THA
participated in this study.
The load distribution on the operated and
non-operated legs was computed by measuring the vertical reaction force of the
operated and non-operated legs during quiet standing and STS movement. We
investigated the load distribution using Pressure Distribution Measurement
Platform preoperatively and 1, 2, 3, 6, and 12 months postoperatively. FINDINGS:
Loading of the operated leg during quiet standing was restored 1 month
postoperatively. Loading of the operated leg during STS movement was higher
within 2 months postoperatively than the preoperative levels and continued to
increase 1 year postoperatively. Loading of the operated leg was lower during STS
movement than that during quiet standing, even 1 year postoperatively.
INTERPRETATION: A longitudinal and dynamic assessment of loading of the operated
leg after THA is clinically important, and the loading during STS movement might
continue to increase for a year after THA.

Langue : ANGLAIS