关节镜下治疗腕三角软骨损伤英文版ppt课件.ppt

TFCC Tear Imaging Plain films may show positive ulnar variance Assess for fracture or ulnar subluxation MRI or Arthrography a large central tear (arrow) along the radial aspect of the articular disc of the TFCC. Associated subchondral degenerative changes are evident within the proximal lunate * * A typical degenerative central tear a discrete vertical tear (arrow) involving the thicker, volar radioulnar ligament component of the TFCC. * * avulsion of the ulnar styloid attachment of the TFC * TFCC tears were classified according to its location as 1 if it was at the cartilage attachment to the radius; 2, pararadial (2–3 mm from the radius); 3, at the mid portion; 4, paraulnar (2–3 mm from the ulnar insertion point of the TFC); or 5, at the ulnar insertion point(Fig 4) * location of the TFCC tears * a relatively big communicating tear (arrow head) close to the radial attachment of the TFCC with more fat sat sequences as required * A small central perforation (arrow) is seen within the central portion of the articular disc of the triangular fibrocartilage complex. An additional, partial thickness undersurface tear (arrowhead) is also present at the articular disc. 代理报关委托书委托报关协议关于审理城镇房屋租赁合同纠纷案件司法解释有关劳务派遣制度设计及对劳务派遣行业的影响分析糖皮质激素在呼吸系统疾病中的合理应用严重脓毒症导致急性肺损伤病人自发利尿现象的观察分析 Zhi-jie Xi, MD 2012-09-22 Triangular Fibrocartilage Complex (TFCC) Tear * 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 patients2 1. P S McAlinden, J Teh, . Imaging of the wrist. Imaging 2003; 15:180-192 2. 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 Imaging Interpretation and Localization of Triangular Fibrocartilage . Hand Surg 2001