Total joint arthroplasty for osteoarthritis of the thumb basal joint.
Published online: Feb 27 2004
De Smet L, Sioen W, Spaepen D, Van Ransbeeck H.
Hand Unit, Orthopaedic Department, University Hospital Pellenberg, Catholic University of Leuven, Lubbeek-Pellenberg, Belgium
Abstract
A survey of 43 cemented arthroplasties of the trapeziometacarpal joint with a la Caffiniere prosthesis in 40 patients is presented. A 70% patient satisfaction rate was obtained, with a mean DASH score of 24.2. Good range of motion was preserved (opposition 9/10 on Kapandji's scale) and gripping force as well as key pinch force increased from 18 kg to 24 kg and from 5.3 to 6.0 kg respectively. However loosening was seen in 44% of the implants. Loosening was related to younger age. We conclude that despite good clinical outcome, radiographic loosening is a threat for the future of this implant.