We report the case of a rare combination of a fracture-dislocation of the base and a neck fracture of the 5th metacarpal, the mechanism was direct, result of a punch in a young sportsman. We made a closed reduction of both fractures with a pinning of the neck of the fifth metacarpal in L according to Vives, and intermetacarpal plinning of the base. Evolution over 12 months was satisfactory.