We undertook a retrospective follow-up study of arthrodesis of 21 trapeziom
etacarpal joints in 19 patients. Internal fixation was by two or three Kirs
chner wires and a bone graft. No joint failed to unite. Painless joints and
stable grasping were achieved. Subjective estimations of improvement were
excellent for 16 joints. However, some patients complained of clumsiness af
ter the procedure. In stability was seen in six metacarpophalangeal (MP) jo
ints of the thumb. The most common indication for trapeziometacarpal joint
arthrodesis was painful arthritis in vigorous, young male labourers. Howeve
r, preoperative evaluation of the function of the MP joint is necessary to
determine suitability for surgery.