The long-term outcome of volar plate arthroplasty of the proximal interphalangeal joint.

The ultimate effectiveness of an arthroplasty is most accurately determined by a long-term review of the joints' function and freedom from pain. We examined 17 patients an average of 11.5 years (range, 4-26 years) following volar plate arthroplasty for a fracture-dislocation of the proximal interphalangeal joint. All surgeries were performed by the same surgeon. The average age was 36 years (range, 17-61 years). No patient complained of pain at rest or with activity. Patients having arthroplasty within 4 weeks of injury attained a total active range of motion of 85 degrees (50 degrees to 110 degrees ). Patients having arthroplasty more than 4 weeks after injury (average, 20 weeks) included several elderly women and averaged 61 degrees (30 degrees to 90 degrees ) total active range of motion. Four patients showed some degree of joint narrowing at the follow-up examination. This review suggests that volar plate arthroplasty continues to be of benefit on a long-term basis and provides satisfactory function and pain-free motion.