Pins and rubber traction system for intra-articular proximal interphalangeal joint fractures revisited.

The Pins and Rubber Traction System (PRTS) can be used to treat proximal interphalangeal intra-articular fractures. Our experience is that outcomes are not always excellent and that many patients have reduced joint function or residual deformities. The aim of this study was to evaluate the reasons behind the poorer outcomes of some of the patients treated with this system. A retrospective clinical and radiological evaluation was performed on 15 patients after a minimum of 2 years' follow-up. The mean interphalangeal joint flexion range was 66 degrees (range 0-100) in our series. The review of the literature shows an average active interphalangeal joint flexion of 78 degrees (range 64-95). Reasons for this difference include preoperative delay, technical deficiencies, the learning curve, a lack in postoperative physiotherapy and degenerative changes due to the longer follow-up. Although the Pins and Rubber Traction System seems a simple procedure, a learning curve is necessary to avoid pitfalls.