[Stabilization-interposition arthroplasty in peri-trapezial arthritic lesions. Apropos of a prospective series of 200 cases].

A group of 200 arthroplasties (180 patients) for basal thumb arthrosis is reported. The used technique is similar to that described by Burton and Pelegrini in 1986. At the last follow up (2 years minimum), 90% patients were without pain, 95% were very satisfied, the grip strength was improved in 70%, and the shortening of the thumb was between 2 and 9 mm (mean 6 m). The mobility of the first metacarpal is improved in only 47%. Complications were limited to two NAD for patients operated of carpal tunnel syndrome in the same time.