No consensus on implant choice for oligometastatic disease of the femoral head and neck

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Abstract

Objectives: Metastatic disease involving the femoral head and neck is often treated with a hemiarthroplasty or total hip arthroplasty (THA) to prevent pathologic fracture but there are no outcome studies demonstrating superiority of one option over the other. Methods: This investigation was designed as a survey of the current members of the Musculoskeletal Tumor Society (MSTS). The survey contained seven clinical vignettes with identical imaging of a pathologic lesion of the femoral head and neck. The primary outcome measured was decision to treat the lesion with hemiarthroplasty or THA. Secondary outcomes included method of fixation of the femoral/acetabular components and head type utilized. Results: A total of 93 members (30.0%) of the MSTS completed the survey. Across all clinical vignettes, 73.3% (p < 0.001) of the responses were in favor of hemiarthroplasty; however, there was no significant difference between hemiarthroplasty and THA in Cases 1 & 2 (p = 0.08, p = 0.6, respectively); the cases representing younger patients with a more favorable histologic diagnosis. When THA was selected the majority of respondents preferred hybrid or cementless fixation construct (56.1% and 27.0%, respectively, p < 0.001). When hemiarthroplasty was selected respondents selected a cemented, bipolar construct (86.4% and 64.2%, respectively, p < 0.001). Conclusions: When treating metastatic lesions of the femoral head and neck orthopaedic oncologists do not agree on reconstructing with THA versus hemiarthroplasty for patients with younger age and favorable histology. This investigation highlights the controversy of this clinical decision and indicates the need for a collaborative prospective trial among this specific patient population in order to determine the optimal treatment method.

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APA

Reif, T. J., Strotman, P. K., Kliethermes, S. A., Miller, B. J., & Nystrom, L. M. (2018). No consensus on implant choice for oligometastatic disease of the femoral head and neck. Journal of Bone Oncology, 12, 14–18. https://doi.org/10.1016/j.jbo.2018.02.006

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