全膝关节置换术后双侧股骨颈应力性骨折：早期诊断的重要性

Morinaga Sei, Ueshima Kenichi, Maruhashi Yoshinobu, Hashimoto Noriyuki, Watanabe Shoji, Nakamura Takuya

Department of Orthopedics Surgery, Toyama Prefectural Central Hospital, Japan.

Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.

Case Rep Orthop. 2020 Feb 6;2020:3091693. doi: 10.1155/2020/3091693. eCollection 2020.

Unilateral stress fracture of the femoral neck following total knee arthroplasty (TKA) is a rare complication; only 21 cases are described in English literature so far. Bilateral stress fractures of the femoral neck occurring simultaneously following a bilateral TKA have been seen in only 2 cases till now. We report a patient suffering from rheumatoid arthritis of both knees, who was treated with bilateral TKA. She developed spontaneous fractures of the femoral neck on both sides 12 months following the TKA. She was treated with bilateral total hip arthroplasty (THA). Stress fracture of the femoral neck should be suspected in patients complaining of hip pain who have undergone TKA.

全膝关节置换术（TKA）后发生的股骨颈单侧应力性骨折是一种罕见的并发症；迄今为止，英文文献中仅描述了21例。双侧TKA后同时发生双侧股骨颈应力性骨折的情况目前仅见2例。我们报告1例双膝类风湿关节炎患者，接受了双侧TKA治疗。TKA术后12个月，她双侧股骨颈发生自发性骨折。她接受了双侧全髋关节置换术（THA）治疗。对于接受过TKA且主诉髋部疼痛的患者，应怀疑股骨颈应力性骨折。