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Abstract：
We report two cases wherein rotating hinge knee (RHK) arthroplasty was performed for Charcot joints that developed secondary to Charcot-Marie-Tooth disease (CMT). Case 1 was of a 74-year-old woman with CMT. She presented with muscle weakness and sensory disturbances of the distal lower limbs, deformity, and significant medial instability of the bilateral knees. She was then diagnosed with Charcot joints of the knees secondary to CMT, which were treated with RHK arthroplasty. Five years postoperatively, there was no instability, and she was able to stand unassisted without pain. Case 2 was a 90-year-old woman with CMT who presented with muscle weakness and sensory disturbances of the distal lower limbs, deformity, and significant medial instability of the bilateral knees. She was then diagnosed with Charcot joints of the knees secondary to CMT, which were also treated with RHK arthroplasty. One year postoperatively, there was no instability, and she was able to walk smoothly using a walker. These clinical cases indicate that RHK arthroplasty can be a good therapeutic option for Charcot joints of the knees in patients with CMT.
摘要：
我们报告了两例病例，其中对Charcot-Marie-Tooth病（CMT）继发的Charcot关节进行了旋转铰链膝关节（RHK）关节成形术。病例1是一名患有CMT的74岁女性。她表现为下肢远端肌肉无力和感觉障碍，畸形,双侧膝关节内侧不稳定。然后她被诊断出患有CMT继发的膝盖Charcot关节，用RHK关节成形术治疗。术后五年,没有不稳定，她能在没有疼痛的情况下独自站立。病例2是一名患有CMT的90岁女性，表现为下肢远端肌肉无力和感觉障碍，畸形,双侧膝关节内侧不稳定。然后她被诊断出患有CMT继发的膝盖Charcot关节，也用RHK关节成形术治疗。术后一年,没有不稳定，她能够使用助行器平稳地行走。这些临床病例表明，RHK关节成形术可能是CMT患者膝关节Charcot关节的良好治疗选择。
