Fisher M R, Rogers L F, Hendrix R W, Gilula L A
Crit Rev Diagn Imaging. 1984;22(2):95-126.
Dislocations at the carpometacarpal joints are uncommon and can be overlooked due to the subtle nature of the radiographic findings. The diagnosis requires a proper understanding of the normal radiographic anatomy of the carpometacarpal joints. To aid in our understanding of the injury, anatomic dissections of the hand were performed. From these, we drew several conclusions about the mechanism of injury. Diagnostic criteria were then developed and applied in the review of a series of CMC dislocations. The incidence and diagnostic characteristics are presented. A systematic approach emphasizing the posteroanterior view and utilization of the parallel "M", principles of parallelism, symmetry, overlapping articular surfaces, and a distinct cortical rim are presented.
腕掌关节脱位并不常见，由于X线表现不明显，可能会被忽视。诊断需要正确理解腕掌关节的正常X线解剖结构。为了帮助我们理解损伤机制，对手进行了解剖。从中，我们得出了关于损伤机制的几个结论。然后制定了诊断标准并应用于一系列腕掌关节脱位的回顾中。本文介绍了其发病率和诊断特点。提出了一种系统的方法，强调后前位视图和平行“M”的应用，平行性、对称性、关节面重叠以及清晰皮质边缘的原则。
