Results of the treatment of first carpometacarpal joint osteoarthritis: trapeziectomy alone versus trapeziectomy associated with suspensionplasty.

Abstract

The goal of this study was to compare trapeziectomy alone to trapeziectomy associated with a technique of suspensionplasty using the abductor pollicis longus with a minimum of 6years of follow-up in the treatment of osteoarthritis of the first carpometacarpal joint. Our series included 46 trapeziectomies in 35 patients, aged 69years in average, among which 27 were women. In 27 cases group I, a trapeziectomy alone was performed, and in 19 cases group II, a trapeziectomy associated with an abductor pollicis longus suspensionplasty was performed. At the last follow-up, the difference between pre- and postoperative Quick DASH was - 36.104 in average in group I and - 38.877 in average in group II p = 0.7717. The difference between pre- and postoperative pain was - 3.926 in average in group I and - 4.368 in average in group II p = 0.35. The difference of pre- and postoperative thumb opposition was 0.630 in group I and 0.421 in group II p = 0.3033. The average difference of pre- and postoperative key pinch was 0.389 in group I and 0.842 in group II p = 0.3303. No complication was reported. Our results suggest that it is unnecessary to perform a ligamentoplasty when a trapeziectomy is indicated.