Abductor muscle strength deficit in patients after total hip
The aims of this study were to assess and quantify hip abductor muscle strength deficits after total hip arthroplasty (THA) and to determine associations with external factors.

Studies reporting on hip abductor muscle strength before and/or after THA performed for osteoarthritis or atraumatic osteonecrosis of the hip were considered for inclusion. Muscle strength on the affected side was compared to the healthy contralateral side or to control subjects. Study quality was assessed using a modified Newcastle-Ottawa Scale.

--19 studies reporting on 875 subjects met the inclusion criteria.

--Patients scheduled for THA had a mean strength deficit of 18.6% compared to control subjects.

--Abductor muscle strength then increased by 20.2 % at 4-6 months, 29.6% at 9-12 months, and 49.8% at 18-24 months postoperatively compared to preoperative values.

--For unilateral THA, the mean torque ratio was 86.3% and 93.4% before and more than 24 months after THA, respectively. Study quality was low to moderate.

Finally, hip abductor muscle strength deficits may improve progressively over the course of 24 months after THA, but they may not fully recover.

Source: https://www.sciencedirect.com/science/article/pii/S0883540321002928?dgcid=rss_sd_all
1 share