CORR Insights®: How Often Do Acetabular Erosions Occur After Bipolar Hip Endoprostheses in Patients With Malignant Tumors and Are Erosions Associated With Outcomes Scores?

摘要

Recent literature suggests that active patients with femoral neck fractures may benefit from a THA over a hemiarthroplasty, since THA may result in higher functional scores and a lower risk of revision to treat secondary acetabular wear [ , ]. In older patients, however, the decision is more controversial, as hemiarthroplasty has reduced dislocation rates and is a less complex surgery to perform compared to THA. But even in elderly patients, these advantages should be weighed against the risk that hemiarthroplasty may still undergo conversion to THA because of groin pain caused by progressive loss of acetabular cartilage. A retrospective study of 686 patients treated for displaced femoral neck fractures found a low risk of subsequent revision to THA (2.5% at an average of 1.9 years after index procedure), consistent with other studies [ ].