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Post Traumatic Avascular Necrosis of the Proximal Carpal Row--A Case Report.

Hand Surgery 2015 October
We report a case of avascular necrosis of the scaphoid, lunate and triquetrum in a young 21-year-old patient, after a purely ligamentous peri-lunate dislocation of the wrist. He presented with a Mayfield III peri-lunate dislocation after a road traffic accident and underwent an open reduction and internal fixation. Post-operatively, the scapho-lunate gap widened after removal of the temporary K-wires, and he gradually developed avascular necrosis of the scaphoid, lunate and triquetrum, and osteoarthritis of his wrist. We present this unusual case of simultaneous avascular necrosis of multiple carpal bones and discuss the possible risk factors and subsequent management plans for this complex injury. Our patient has no identifiable contributing factors to developing avascular necrosis. We suspect that the violence of the injury and surgery may have compromised the circulation, and advise caution when treating and counseling these patients pre-operatively.

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