Clinical analysis of the epicondylectomy and the deep anterior transposition of the ulnar nerve for tardy ulnar palsy

The authors followed-up 55 patients with tardy ulnar nerve palsy at our clinic from 1955 to 1977, 39 of whom were treated by epicondylectomy, 16 by the deep anterior transposition of the ulnar nerve.The followed results were obtained:1) According to Tsuge's criteria, the results of epicondylectomy was excellent and good in 61.5% and the deep anterior transposition of the ulnar nerve in 68.8%.2) As for recovery of extension power of the fingers and sensory disturbance, the deep anterior transposition of the ulnar nerve was superior to epicondylectomy, in cases of the partialy degenerated type of the ulnar nerve, the former was also superior to the latter.