Reduction and fixation for mallet fracture. A, Joint is exposed through dorsal zigzag incision. B, Kirschner wire is drilled longitudinally through distal phalanx. C, Joint is reduced, Kirschner wire is driven proximally across joint, and fracture fragment is reduced. If fracture fragment cannot be maintained in proper position, pull-out suture is passed through fragment and distal phalanx and tied over padded button.