Lu J, Ebraheim N A, Skie M, Porshinsky B, Yeasting R A
Department of Orthopaedic Surgery, Medical College of Ohio, Toledo 43614, USA.
Foot Ankle Int. 1997 Jun;18(6):351-5. doi: 10.1177/107110079701800608.
Six cadaver feet were used for radiological and computed tomographic (CT) evaluation. The tarsometatarsal joints of each specimen were displaced dorsolaterally in successive 1-mm increments. None of the 1-mm and two thirds of the 2-mm dorsolateral Lisfranc dislocations could be visualized on routine radiographs; they could all be noted on CT scans. There was good assessment on CT scan for the extent of the minor lesions that are normally obscured by overlapping projection in routine radiographs. A Lisfranc injury that appears undisplaced on radiographs or acceptable after closed reduction may still have an unpredictable outcome because of the presence of an occult joint subluxation. CT scanning is more sensitive than radiography for detecting the minor amounts of Lisfranc displacement. If there is any doubt on the radiographs, a CT scan should be performed. The early diagnosis and treatment of Lisfranc injuries may minimize development of post-traumatic degenerative arthritis.
使用六具尸体足部进行放射学和计算机断层扫描（CT）评估。每个标本的跗跖关节以连续1毫米的增量向背外侧移位。1毫米的背外侧Lisfranc脱位以及三分之二的2毫米背外侧Lisfranc脱位在常规X线片上均无法显示；但在CT扫描中均可发现。CT扫描能够很好地评估那些在常规X线片上因重叠投影而通常难以看清的轻微损伤的程度。在X线片上看似无移位或闭合复位后可接受的Lisfranc损伤，由于存在隐匿性关节半脱位，其预后可能仍然无法预测。CT扫描在检测少量Lisfranc移位方面比X线摄影更敏感。如果X线片上有任何疑问，都应进行CT扫描。Lisfranc损伤的早期诊断和治疗可能会减少创伤后退行性关节炎的发生。
