关节镜下治疗腕三角软骨损伤07/08/2026• Lesions of the triangular fibrocartilage complex (TFCC) are a common source of ulnarsided wrist pain.1,2• Radial side tear or perforations tend to be traumatic and occurs more in young age group , on the other hand , central and ulnar side lesions are more often degenerative and commonly seen in older patients21. P S McAlinden, J Teh, . Imaging of the wrist. Imaging 2003; 15:180-1922. Philip E. Blazar, Peter S.H. Chan, J.Bruce Kneeland, Donald Leatherwood, David J. Bozentka,Roman Kowalchick, . The Effect of Observer Experience on Magnetic Resonance ImagingInterpretation and Localization of Triangular Fibrocartilage . Hand Surg 2001;26A:742–748AnatomyTFCCTFCCTriangular fibrocartilage (articular disc)Meniscus homologueUCL ( ulnar capsule)Volar and Dorsal DRU Ligaments ECU subsheath Prestyloid recess07/08/2026A 3D depiction of the TFCCArthroscopyComplex fibrous structure on volar aspect of wristOrigin-dorsal distal corner of sigmoid notchInsertion- triquetrum and base of fifth metatarsalPartially or completely separates pisotriquetral joint from radiocarpal jointMENISCUS HOMOLOGUEULNOLUNATE AND ULNOTRIQUETRAL LIGAMENTSFrom volar aspect of radioulnar ligament to lunate and Triquetrum Firmly attached to triquetrumLess strong attachment to lunateULNOLUNATE AND ULNOTRIQUETRAL LIGAMENTSFrom volar aspectof radioulnarligament to lunateand triquetrumType 1-TraumaticA Horizontal tearadjacent to the radiusB Peripheraldetachment from the ulnaC Tear of theUlnocarpal ligamentsD Avulsion fromsigmoid notchPALMER CLASSIFICATIONType II-DegenerativeA Partial thickness thinningof the articular discB A + Chondromalacia oflunate and/or ulnar headC B + full thickness tear ofthe articular discD C + Partial ...
