Abstract
Soft tissue lesions around the distal ulna as well as fractures of the styloid process are common in association with dorsally displaced distal radius fractures. A majority of the ligamentous injuries appear to affect the triangular fibrocartilage complex (TFCC) in varying degrees. Dorsal fracture displacement more than 34° from anatomic position has been found impossible with intact TFCC attachment. The injury may cause ulno-carpal or distal radio-ulnar joint (DRUJ) instability. In low-demand patients, this however appears well tolerated. Early repair in the acute stage is recommended with severe instability, particularly in high-demand patients. Concomitant fractures of the ulnar styloid process have not, in adults, been found to affect outcome, and early repair is not recommended if sufficient wrist stability can be achieved by treatment of the radius fracture.
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