Figure 12.

Type 1D tear. (A) Schematic drawing showing tear at the radial attachment (pink circle); (B) proton density fat-suppressed coronal MRI image shows an avulsion tear present at the radial attachment (short solid arrow). Peripheral retraction of the TFCC is noted (short block arrow). This patient had history of fracture distal radius with intraarticular extension (solid arrowhead); (C) proton density coronal MRI of another patient showed avulsion tear at the radial attachment (solid arrowhead) associated with peripheral retraction of the TFC leaving a gap filled up with fluid (block arrowhead). There is no remnant of the TFC at the radial attachment to suggest type 1A tear. TFCC, triangular fibrocartilage complex.