The proximal interphalangeal joint in Dupuytren's disease.

In one hundred patients with Dupuytren's disease, one hundred and fifty-four operations were performed. The average pre-operative proximal interphalangeal joint contracture was 42 degrees and the average percentage improvement in proximal interphalangeal joint extension at post-operative review was 41%. Fourteen amputations were performed (9.1%). The primary deformity is caused by disease involvement of the palmar fascial structures. Secondary changes may prevent correction of the deformity despite excision of the contracted fascia. The anatomy of the joint is reviewed together with the primary and secondary mechanisms of joint contracture in Dupuytren's disease. Arthrodesis, osteotomy of the proximal phalanx and joint replacement are considered as alternatives to amputation when a systematic surgical approach fails to correct the flexion contracture.