Isolated Radiopalmar Dislocation of Fifth Carpometacarpal Joint: A Rare Presentation

Carpometacarpal (CMC) joint dislocations are uncommon injuries that account for less than 1% of hand injuries. Dorsal dislocations of the CMC joints are more frequent than volar dislocations. Palmar dislocations can be either ulnopalmar or radiopalmar. There are very few reports of isolated radiopalmar dislocations of the fifth CMC joint in the English-language literature. In our case of radiopalmar dislocation, diagnosis was delayed, and attempts at closed reduction were unsuccessful. Therefore, it was treated by open reduction and Kirschner-wire fixation. This article reports a rare type of injury and discusses its management.