Unreduced volar plate avulsion fracture of base of middle phalanx in proximal interphalangeal(PIP) joint result in chronic joint instability, traumatic arthritis, joint stiffness, deformity. In spite of various operative method recommended, this injury remains a problematic obstacles in the management. Sixteen patients who received operative treatment for this injury from 1992 to 1999 at Yongdong Severance Hospital were analized retrospectively. The indication of surgical treatment included articular fracture involved over 30% articular surface, displacement over 2~3 mm, impingement by interposition of fragment into joint cavity and open fracture. The patients were all man and the mean age was 28.8 years old(16~57). The third finger of domi...