Konan S, Garbuz D S, Masri B A, Duncan C P
University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.
Bone Joint J. 2016 Jan;98-B(1 Suppl A):50-3. doi: 10.1302/0301-620X.98B1.36442.
Tapered fluted titanium stems are increasingly used for femoral revision arthroplasty. They are available in modular and non-modular forms. Modularity has advantages when the bone loss is severe, the proximal femur is mis shapen or the surgeon is unfamiliar with the implant, but it introduces the risk of fracture of the stem at the junction between it and the proximal body segment. For that reason, and while awaiting intermediate-term results of more recently introduced designs of this junction, non-modularity has attracted attention, at least for straightforward revision cases. We review the risks and causes of fracture of tapered titanium modular revision stems and present an argument in favour of the more selective use of modular designs.
锥形带槽钛柄越来越多地用于股骨翻修关节成形术。它们有模块化和非模块化两种形式。当骨丢失严重、股骨近端形状异常或外科医生不熟悉植入物时，模块化具有优势，但它会带来柄在与近端体段连接处骨折的风险。因此，在等待这种连接处的最新设计的中期结果期间，非模块化至少在简单的翻修病例中引起了关注。我们回顾了锥形钛模块化翻修柄骨折的风险和原因，并提出了支持更有选择性地使用模块化设计的观点。
