Vasileios Athanasiou, Spyridon Papagiannis
Department of Orthopaedics, Patras University Hospital, Patras, Greece.
Arthroplast Today. 2022 Jun 3;16:119-123. doi: 10.1016/j.artd.2022.05.003. eCollection 2022 Aug.
Component dissociation after a bipolar hemiarthroplasty is an uncommon complication that usually necessitates reoperation due to difficulties in closed reduction. To our knowledge, only a few cases have been published in the recent literature. We present a case of disassembly location of in a 68-year-old woman who underwent bipolar hemiarthroplasty 10 years ago due to a left hip femoral neck fracture. She began complaining about pain and difficulty to bear weight after an unintentional internal rotation movement of her left hip. The initial radiographs showed the disassembly of the bipolar hip prosthesis, and the patient underwent conversion to total hip arthroplasty. We conducted a literature review to explain the potential causes and mechanisms.
双极半髋关节置换术后部件分离是一种罕见的并发症，由于闭合复位困难，通常需要再次手术。据我们所知，最近的文献中仅发表了少数病例。我们报告一例68岁女性的部件分离情况，该患者10年前因左髋股骨颈骨折接受了双极半髋关节置换术。在左髋无意发生内旋运动后，她开始抱怨疼痛和负重困难。最初的X线片显示双极髋关节假体分离，该患者接受了全髋关节置换术。我们进行了文献综述以解释潜在的原因和机制。
