Gabl M, Zimmermann R, Angermann P, Sekora P, Maurer H, Steinlechner M, Pechlaner S
University Hospital for Traumatology and the Institutes of Anatomy and Forensic Medicine, Innsbruck, Austria.
J Hand Surg Br. 1998 Apr;23(2):179-82. doi: 10.1016/s0266-7681(98)80170-8.
From the interosseous membrane of the forearm a tract extends to the dorsal capsule of the distal radioulnar joint. The structure and function of this tract have been investigated. The tract originates from the radius 22 mm proximal to the distal dorsal corner of the sigmoid notch. Central fibres are attached there with fibrous cartilage and superficial bundles mix with the periosteum. The tract is 8 mm wide, 31 mm long and 1 mm thick. Distally it inserts at the capsule of the distal radioulnar joint between the tendon sheaths of extensor digiti minimi and extensor carpi ulnaris. Deep fibres insert directly at the triangular fibrocartilage. The tract of the interosseous membrane is taut in pronation and loose in supination. It strengthens the dorsal capsule of the distal radioulnar joint. During pronation the tract protects the ulnar head in a sling. Its attachment at the triangular fibrocartilage influences the distal radioulnar joint. Its insertion at the triangular fibrocartilage and the support of the weakest part of the dorsal capsule are of interest.
一条束带从前臂骨间膜延伸至桡尺远侧关节的背侧关节囊。已对该束带的结构和功能进行了研究。该束带起自乙状切迹远侧背角近端22毫米处的桡骨。中央纤维通过纤维软骨附着于此，浅层束带与骨膜混合。该束带宽8毫米，长31毫米，厚1毫米。在远侧，它附着于小指伸肌腱鞘和尺侧腕伸肌腱鞘之间的桡尺远侧关节囊。深层纤维直接附着于三角纤维软骨。骨间膜束带在旋前时绷紧，在旋后时松弛。它加强了桡尺远侧关节的背侧关节囊。在旋前过程中，束带像吊索一样保护尺骨头。它在三角纤维软骨上的附着影响桡尺远侧关节。它在三角纤维软骨上的附着以及对背侧关节囊最薄弱部分的支撑值得关注。
