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Volar distal radioulnar joint (DRUJ) dislocation is a rare clinical entity that is commonly missed during initial evaluation. We report a case of a locked volar DRUJ dislocation associated with ulnar artery transection in a 53-year-old patient. He presented to the hospital after sustaining an injury to the right wrist by a heavy machinery object. Clinical evaluation showed contused skin, decreased sensation in the ulnar 2 digits, and an audible radial pulse, assessed using Doppler. Imaging studies revealed a locked volar DRUJ dislocation associated with a nondisplaced fracture of the distal ulna. Open reduction was performed with decompression of the Guyon canal. The ulnar artery was found to be transected and was primarily repaired. After the surgery, the patient showed marked improvement in neurological symptoms and patent ulnar artery flow. This case highlights the importance of meticulous evaluation and presents the heterogeneity of a volar DRUJ dislocation.

Locked Volar Distal Radioulnar Joint Dislocation Associated With Asymptomatic Transection of the Ulnar Artery