Berger R A, Blair W F, El-Khoury G Y
Clin Orthop Relat Res. 1983 Jan-Feb(172):257-64.
Eighteen fresh cadaver wrists were radiographically studied using both arthrography and arthrotomography, to evaluate the results of the two techniques. With arthrography, communications between the distal radioulnar and radiocarpal joints were discovered in eight of the 18 wrists (44%). Although defects in the triangular fibrocartilage complex (TFCC) could be inferred from the arthrograms, the locations and dimensions of the defects could not be assessed satisfactorily. Using arthrotomography, three distinct patterns of TFCC defects were observed radiographically, which correlated with subsequent anatomic dissections of the cadaver specimens. Type I defects, located near the radial margin of the TFCC, are long, narrow posteroanterior fissures with thick regular borders that readily appose. Type II defects, located more centrally in the TFCC, are wide defects with thin irregular margins. Type III defects represent a communication between the prestyloid recess and the distal radioulnar joint. Arthrotomography of the wrist accurately delineates TFCC defects in cadaveric specimens and may become a valuable clinical radiographic procedure.
对18个新鲜尸体手腕进行了影像学研究，采用关节造影和关节断层摄影术，以评估这两种技术的结果。关节造影显示，18个手腕中有8个（44%）存在桡尺远侧关节与桡腕关节之间的交通。尽管从关节造影片上可以推断出三角纤维软骨复合体（TFCC）存在缺损，但缺损的位置和大小无法得到满意的评估。采用关节断层摄影术，在影像学上观察到TFCC缺损有三种不同类型，这与随后对尸体标本的解剖结果相关。I型缺损位于TFCC的桡侧边缘附近，是长而窄的前后向裂隙，边缘厚且规则，容易对合。II型缺损位于TFCC更中央的位置，是边缘薄且不规则的宽缺损。III型缺损表现为茎突前隐窝与桡尺远侧关节之间的交通。手腕的关节断层摄影术能准确描绘尸体标本中的TFCC缺损，可能会成为一种有价值的临床影像学检查方法。
