Extra-articular transverse fractures of the base of the distal phalanx (Seymour's fracture) in children and adults.

A series of 25 extra-articular transverse fractures of the base of the distal phalanx (Seymour's fracture) in children, adolescents and adults are presented. Prior to closure of the distal phalangeal epiphysis, the fracture line is usually entirely through the metaphyses, 1 to 2 mm distal to the growth plate. In adults, the fracture line is just distal to the insertion of the extensor tendon. Eighteen of these fractures were treated by closed reduction and splinting and one of these developed an infection and three had mild residual flexion deformities of the finger. Five fractures were treated by K-wire fixation and all healed without complications. Two adult patients presented 4 to 5 weeks after injury with malunion, and of these one underwent refracturing and K-wire fixation with an excellent result.