[Technic and results of tendon interposition arthroplasty of the lunate and scaphoid bones].

Between 1971 and 1982 tendon interposition arthroplasty in combination with denervation of the wrist joint was performed on 55 patients with either Kienböck's disease, irreducible lunate dislocations with or without scaphoid dislocation, or scaphoid non-union with a small proximal fragment. Follow-up was possible on 38 patients (69%). In two third of the cases good and very good results are achieved with this operative technique. The significant points were the arthrosis in the wrist joint and the complete obliteration with tendon material of the cavity left by the extirpated carpal bone. Ulnar styloidectomy produced not only a painfree wrist but also better ulnar movement.