Lateral band release for post-traumatic extension contracture of the proximal interphalangeal joint.

In the patient with scarring of just the central band and lateral bands, there is a loss of active and passive flexion of the proximal interphalangeal (PIP) joint because the lateral bands have lost their normal volar shift. Surgical freeing of the lateral bands from the central band using parallel incisions may be required to allow full flexion of the PIP joint. This study reports on 10 patients with post-traumatic extension contracture of the PIP joint treated by lateral band release. All operations were successful, with an average gain in range of motion of 47.5 degrees. This technique is simple, quick, and can be performed effectively on an out-patient basis.