Shimonoseki, Japan.
Arthroscopy. 2021 May;37(5):1651-1653. doi: 10.1016/j.arthro.2021.01.019. Epub 2021 Jan 22.
The ulnar head attachment of triangular fibrocartilage complex is divided into 2 sections: the distal radioulnar ligament consists of superficial and deep bundles on both the palmar and dorsal sides, which attach at the fovea and the base of the ulnar styloid. A tear on the ulnar side of triangular fibrocartilage complex inevitably occurs at these attachments. Both magnetic resonance imaging and distal radioulnar joint (DRUJ) arthroscopy are crucial. DRUJ arthroscopy can clarify the tear location. An ulnar styloid tear can be treated by capsular repair. However, a foveal tear should be reattached to the fovea because this tear could cause gross DRUJ instability. There are several ways to reattach the bundles to the fovea, including single- or double-tunnel or bone anchors, and open versus arthroscopic.
三角纤维软骨复合体的尺侧头附着处分为 2 个部分：远侧桡尺韧带在掌侧和背侧均有浅层和深层束，附着于窝和尺骨茎突基底。三角纤维软骨复合体的尺侧撕裂必然发生在这些附着处。磁共振成像和远侧桡尺关节（DRUJ）关节镜检查都很重要。DRUJ 关节镜检查可以明确撕裂的位置。尺骨茎突撕脱可以通过囊修复治疗。然而，窝状撕裂应重新附着于窝，因为这种撕裂可能导致严重的 DRUJ 不稳定。有几种方法可以将束重新附着到窝，包括单隧道或双隧道或骨锚，以及开放式与关节镜式。
