[Value of Swanson implants in complex traumatic lesions of the proximal interphalangeal joint]

The authors report the results of 30 Swanson implants, inserted immediately, or secondarily in complex trauma of the proximal interphalangeal joint of long fingers in 24 patients (19 men, 5 women). All patients were reviewed by the same examiner with a mean follow-up of 7 years (range: 17 months-17.2 years). All implants were inserted secondarily after the accident, except in 7 cases in which the local conditions led the operator to insert the implant immediately. At review, 20 implants were still in place, 6 patients had requested amputation, and arthrodesis had been performed in 4 cases. The mean range of movement was -13,4 degrees to 37 degrees, i.e. a mean amplitude of 23.6 degrees. The lateral stability of the operated finger was considered to be satisfactory in 50% of cases, and the patient was satisfied with the operation in 65% of cases. The authors consider that useful mobility of the proximal interphalangeal joint should be preserved whenever possible. The Swanson implant is currently a useful alternative to amputation or arthrodesis, especially as it does not compromise these procedures if they are required subsequently.