ArticleIndian journal of orthopaedics2026
Collared Femoral Stems Have Lower Risk of Postoperative PPFs After THA: A Retrospective Cohort Study.
Article in Indian journal of orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Periprosthetic fractures (PPFs) remain a serious complication following total hip arthroplasty (THA), contributing to increased morbidity and healthcare costs. Femoral stem design, particularly the presence of a collar, has been hypothesized to enhance axial stability and reduce micromotion, potentially lowering the risk of PPFs. This retrospective cohort study aimed to compare outcomes between collared and non-collared femoral stems in cementless THA. Methods: We retrospectively analyzed 618 patients who underwent cementless THA between January 2014 and December 2024. Patients were stratified into two groups based on femoral stem design: collared ( Results: The collared stem group showed a significantly lower incidence of PPFs (0.97% vs. 3.87%, Conclusion: Collared cementless femoral stems are associated with improved alignment, less subsidence, and a significantly lower risk of PPFs, supporting their biomechanical advantage in primary THA.
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