A roentgenogram of the hand with the forearm pronated 30 degrees from the routine anteroposterior position shows the degree of displacement in an intra-articular fracture through the base of the little finger metacarpal. Fracture of the base of the little finger metacarpal without displacement or with minimum ulnar displacement was satisfactorily treated with a molded cast. Power grip is improved if fractures of the carpometacarpal joint of the little finger with ulnar and proximal displacement are corrected. All fractures which resulted in displacement requiring open reduction and pin fixation had a delay of three days or more in treatment, so early treatment is recommended.