Pelletier Yann, Gille Olivier, Vital Jean-Marc
Department of Orthopaedic, Spine Unit, Pellegrin Hospital, CHU Bordeaux, Bordeaux, France.
Asian J Neurosurg. 2020 Aug 28;15(3):719-721. doi: 10.4103/ajns.AJNS_147_20. eCollection 2020 Jul-Sep.
The objective is to report a case of an early dislocation of Mobi-C prosthesis used for the replacement of C4-C5 disc. A 57-year-old man who was operated 17 years before for C6-C7 fusion complained of cervicalgia associated with bilateral but predominantly right-sided brachialgia. Magnetic resonance imaging demonstrated central and foraminal stenosis in the C5-C6 segment and soft medial disc herniation in the C4-C5 segment. The patient was indicated for the placement of a cervical disc prosthesis C4-C5 and a C5-C6 arthrodesis. After 1 month of clinical improvement, the patient saw his pain reappearing as well as the presence of dysphagia not objectified before. The patient did not describe a traumatic context. The radiographic assessment showed an anterior dislocation of the prosthesis. The patient was reoperated, the prosthesis was removed, and cervical arthrodesis with iliac graft was performed. Although rare, this complication must be well known by surgeons performing cervical arthroplasty.
目的是报告一例用于置换C4-C5椎间盘的Mobi-C假体早期脱位的病例。一名17年前接受过C6-C7融合手术的57岁男性，主诉颈部疼痛并伴有双侧臂痛，但以右侧为主。磁共振成像显示C5-C6节段中央和椎间孔狭窄，C4-C5节段有软性椎间盘内侧突出。该患者被建议植入C4-C5颈椎间盘假体并进行C5-C6关节融合术。经过1个月的临床改善后，患者的疼痛再次出现，并且出现了之前未发现的吞咽困难。患者未描述有创伤情况。影像学评估显示假体向前脱位。患者接受了再次手术，取出了假体，并进行了髂骨移植颈椎融合术。尽管这种并发症很罕见，但进行颈椎置换术的外科医生必须充分了解。
