尺侧腕伸肌腱鞘
Vagina tendinis extensoris ulnaris carpi
- 拉丁语近义词: Vagina tendinis musculi extensoris carpi ulnaris
定义
尺侧腕伸肌腱鞘(ECU)包绕尺侧腕伸肌腱,该肌腱经腕背第六骨纤维管穿行,位于尺骨茎突的正后方。腱鞘位于由尺骨沟与伸肌支持带共同构成的骨纤维管道内。滑膜鞘在近端延伸超过尺骨茎突数厘米,远端延伸至第5掌骨基底部,从而在腕关节伸展及尺偏运动过程中保障肌腱平滑、无摩擦地滑动。
临床上,该腱鞘的炎症或撕裂可导致尺侧腕伸肌腱鞘炎或肌腱半脱位,尤其多见于反复进行腕部运动的运动员。
參考資料
Gray, H. (2016) Gray’s Anatomy: The Anatomical Basis of Clinical Practice. 41st edn. Edited by S. Standring. New York: Elsevier. Chapter 50: Wrist and hand, pp. 879.
Drake, R.L., Vogl, A.W. and Mitchell, A.W.M. (2009). ‘Chapter 7: Hand’ in Gray’s anatomy for Students. (2nd ed.) Philadelphia PA 19103-2899: Elsevier, pp. 757; Fig. 7.95.
MickeyMed. (n.d.). Extensor retinaculum of hand. Available at: https://www.mickeymed.com/article/extensorretinaculumofhand (Accessed: 7 January 2026).