Unusual capitate fracture with dorsal shearing pattern and concomitant carpometacarpal dislocation with a 6-year follow-up: A case report

Figure 1 A fracture of the distal capitate with carpometacarpal joint dislocation is seen. A and B: Radiography; C and D: Computed tomography of the left hand.

Figure 2 The flexion/extension of the left wrist is comparable to that of the dominant right wrist. A and B: Radiography; C and D: Clinical photos of the left wrist three months postoperatively. Appropriate plate and screw placement with no fracture site collapse is observed.

Figure 3 A healed fracture with no avascular necrosis of the capitate is seen. A and B: Radiography; C and D: Computed tomography of the left hand six years postoperatively.

Figure 4 Clinical photos of the left wrist six years postoperatively. A and B: The flexion/extension of left wrist; C and D: Forearm rotation are comparable to that of the dominant right wrist.

Figure 5 The proposed mechanism of injury. The fragment is rotated by 90° because the dorsal intercarpal ligament blocks the proximal part of the fragment and due to direct axial loading on the third metacarpal base with an extremely outstretched hand.