Lunotriquetral arthrodesis using cancellous bone graft

Abstract

Previous reports of lunotriquetral arthrodesis suggest relatively low rates of primary fusion without the use of permanent fixation and/or prolonged immobilization. We performed 26 lunotriquetral arthrodeses in 24 patients with a technique using cancellous bone graft to fill a biconcave space created in the adjoining bones with parallel K-wire fixation. The indications included symptomatic lunotriquetral instability and degenerative arthritis. All patients received conservative treatment before surgery. Primary fusion was achieved in all wrists in an average of 50 days. Postoperative wrist flexion/extension averaged 77%/80% of unaffected sides. Radial/ulnar deviation averaged 95%/91% of unaffected sides. Pain relief was good or very good in 83%. Eight-eight percent returned to the workforce. This study shows reliable, effective results with a technique that adheres to the principles of intercarpal arthrodesis and avoids permanent internal fixation.