EFORT: 10-year results of removal vs retention of subchondral bone plate in THA .
Positive effect of removal of the subchondral bone plate in cemented cup fixation. A randomized RSA study with 10 years follow-up
50 patients with primary osteoarthritis were randomized to undergo total hip arthroplasty with either the removal or retention of the subchondral bone plate during cemented cup fixation in the original radiostereometric analysis (RSA) study. This study aimed to compare outcomes between removal and retention at a 10-year follow-up. Results indicated greater stability in proximal migration and change of inclination of the cup in the removal group compared to the retention group. Significantly less development of radiolucent lines was observed in the cement-bone interface of patients in the removal group as well. Clinical outcomes were comparable between groups.
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