目的　研究TFCC的解剖构成，明确TFC周围韧带的组成及神经分布，为开展支配神经切除术治疗腕尺侧痛的术式奠定基础。  方法    对30例成年男性腕关节标本进行解剖，首先观察腕尺侧组织及TFCC的神经支配，之后观察TFC周围韧带的组成及起止。  结果　(1)TFCC的韧带组成除包括国内外报道的尺月韧带、尺三角韧带（均抵止于对应腕骨掌侧）、桡尺骨远端韧带、尺侧副韧带、尺侧腕伸肌腱鞘之外，还包括新观察到的尺月、尺三角背侧韧带。(2)腕尺侧及TFCC的神经支配主要来自于尺神经手背支的腕关节支。  结论    （1） TFCC的尺月、尺三角韧带不仅止于对应腕骨的掌侧，同时也发出纤维抵止于对应腕骨的背侧。（2） 腕尺侧及TFCC的神经支配主要来自于尺神经手背支的腕关节支，因此TFCC或尺神经手背支腕关节支损伤为腕尺侧痛的解剖学基础。

Objective　To investigate anatomic features of TFCC (Triangular Fibrocartilage  Complex) structure, for surgical treating of ulnar wrist pain induced by TFCC injuries.　Methods　30 adult cadaveric wrist specimens were involved in this study. The innervation of ulnar carpal soft tissues and TFCC was observed. Structure, origin and attachment of the ligaments around TFC were also studied.　Results　(1) The ligaments around TFC included ulnounate ligament, ulnotriquetrum ligament, both attached to the volar side of the corresponding carpal bones, collateral ulnar ligament, distal radioulnar ligament, radioulnar triquetral ligament and the sheath of the extensor carpi ulnaris. In addition, dorsal ulnounate ligament and dorsal ulnotriquetrum ligament could be found. (2) The innervation of ulnar carpal soft tissues and TFCC was from the branches of ulnar nerve.　Conclusions　The ulnounate and ulnotriquetrum ligaments attach to both volar and dorsal side of corresponding carpal bones. The innervation of ulnar carpal soft tissues and TFCC is from dorsal branches of ulnar nerve. Ulnar wrist pain can be treated by the selected enervation.