Davies A M, Cassar-Pullicino V N
Department of Radiology, Royal Orthopaedic Hospital, Birmingham.
Br J Radiol. 1989 Dec;62(744):1050-5. doi: 10.1259/0007-1285-62-744-1050.
Ten cases of osteochondritis dissecans of the talus are reviewed. Coronal computed tomographic arthrography identified the precise location in each case and consistently revealed the extent of the lesion to be greater than that apparent on the plain radiographs. The talar cartilage over the lesion was shown to be thinned in four cases, deficient in two, and fissuring of the cartilage was demonstrated in four. Subarticular cysts were identified in all but two cases and contrast medium was shown to enter the cysts in two cases indicating a communication with the ankle joint. The aetiology and relevance of these findings to treatment are discussed.
回顾了10例距骨剥脱性骨软骨炎病例。冠状位计算机断层扫描关节造影确定了每例病变的精确位置，并始终显示病变范围大于平片所见。病变上方的距骨软骨在4例中显示变薄，2例中缺失，4例中显示软骨有裂隙。除2例病例外，所有病例均发现关节下囊肿，2例病例显示造影剂进入囊肿，表明与踝关节相通。讨论了这些发现的病因及其与治疗的相关性。
