[The first Zancolli procedure in the treatment of cubital and mediocubital claw hand. Apropos of 32 cases].

The authors have reviewed 32 cases of claw hand due to lesions of the ulnar nerve only in 25 cases or associated lesions of the ulnar and median nerve in 7 cases treated by the first Zancolli procedure. This procedure consists of advancement of the pulleys and anterior capsulorraphy of the metacarpo-phalangeal joints. One case had to be operated on twice. In 25 instances there was a complete division of the nerve. One 17 occasions the procedure was done on the ring and little fingers only and on 12 occasions on the other finger. The results were excellent or good in 23 cases. An associated tendon transfer in the thumb was done in all cases in which there was an associated median lesion.