Jose Jean, Arizpe Azael, Barrera Carlos M, Ezuddin Nisreen Shabbir, Chen David
Department of Radiology, Jackson Memorial Hospital, University of Miami Miller School of Medicine, Miami, FL, USA.
Department of Orthopedic Surgery, Uhealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, FL, USA.
Skeletal Radiol. 2018 Mar;47(3):419-424. doi: 10.1007/s00256-017-2796-1. Epub 2017 Oct 27.
The triangular fibrocartilage complex (TFCC) is an intricate ligamentous and cartilaginous structure that helps transmit axial load across the wrist, and provide stability to the ulnocarpal and distal radioulnar joints (DRUJ). Because the blood supply to the TFCC varies depending on location, certain types of tears are more amenable to surgical repair than others. Since Palmer proposed his classification system of TFCC tears in 1989, only 1 case of a "bucket-handle" type tear has been reported. In this article, we describe two new cases of bucket-handle tears of the TFCC. In both cases, the torn fragment was displaced into a previously undescribed location (intra-articular DRUJ and prestyloid recess). Because this type of injury pattern has not been previously well characterized in the literature and such cases rarely reported, MRI findings have not been fully described and its implications on clinical management have largely yet to be determined.
三角纤维软骨复合体（TFCC）是一种复杂的韧带和软骨结构，有助于在腕关节传递轴向负荷，并为尺腕关节和桡尺远侧关节（DRUJ）提供稳定性。由于TFCC的血液供应因位置而异，某些类型的撕裂比其他类型更适合手术修复。自1989年帕尔默提出他的TFCC撕裂分类系统以来，仅报告过1例“桶柄”型撕裂。在本文中，我们描述了2例新的TFCC桶柄状撕裂病例。在这两例病例中，撕裂碎片均移位至一个此前未描述过的位置（关节内DRUJ和茎突前隐窝）。由于这种损伤模式此前在文献中未得到充分描述，且此类病例很少被报道，因此MRI表现尚未得到充分描述，其对临床治疗的影响在很大程度上仍有待确定。
