Corrective Osteotomy for Malunited Hamate Intra-Articular Fracture with Vascularized Bone Graft: A Case Report

Abstract

　The fourth and fifth carpometacarpal joints of the hamate bone have been found to possess much greater range of motion than the other carpometacarpal joints. The fourth and fifth carpometacarpal joints have a range of motion of 15 degrees and 30 degrees. Therefore, malunited hamate intra-articular fractures may lead to decreased grip strength, chronic pain, and osteoarthritis, which may lead to irreversible and serious disability. We present a case of a 31-year-old man surgically treated with corrective osteotomy with vascularized pedicled bone graft from the dorsal aspect of the distal radius based on the fifth extensor compartment artery and external fixation, leading to excellent results. Vascularized bone grafts are efficacious in these fractures and are recommended as a surgical treatment.