Kuzyk Paul, Gross Allan, Lamb Iain R, Muir Jeffrey M
Department of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, CAN.
Clinical Research, Intellijoint Surgical, Kitchener, CAN.
Cureus. 2021 Sep 30;13(9):e18404. doi: 10.7759/cureus.18404. eCollection 2021 Sep.
Conversion of hip arthrodesis to total hip arthroplasty is associated with significant challenges, including accurate restoration of leg length and proper orientation of the acetabular component. Computer-assisted navigation provides real-time data on these parameters that may be a useful augment during hip fusion takedown surgery. Here, we present the case of a 64-year-old woman who presented with symptoms related to a left hip arthrodesis. The patient underwent a left-sided hip arthrodesis takedown and conversion to a total hip arthroplasty (THA). Due to the altered anatomical architecture of the fused hip, imageless navigation was used to assist with the conversion to THA. This case demonstrates that in complex hip arthroplasty procedures, where anatomical morphology is altered, navigation technology can be beneficial in addressing the challenges of achieving optimal placement of acetabular components and establishing appropriate leg length and offset.
髋关节融合术转换为全髋关节置换术面临诸多重大挑战，包括准确恢复肢体长度以及髋臼组件的正确定向。计算机辅助导航可提供这些参数的实时数据，这在髋关节融合拆除手术中可能是一种有用的辅助手段。在此，我们介绍一例64岁女性患者，她因左侧髋关节融合术出现相关症状。该患者接受了左侧髋关节融合拆除并转换为全髋关节置换术（THA）。由于融合髋关节的解剖结构发生改变，采用了无图像导航来辅助转换为THA。本病例表明，在解剖形态改变的复杂髋关节置换手术中，导航技术有助于应对实现髋臼组件最佳放置以及确定合适肢体长度和偏移量等挑战。
