The Results of Transposition of Tardy Ulnar Palsy

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Both clinical and electromyographical studies were made in 8 cases in which anterior transposition of ulnar nerve had been performed.Period for following up varied from seven months to two years and ten months after operation.The following conclusion were obtained.1) In seven of the eight cases there were cubitus valgus in more 20 degrees which was followed old fracture of the elbow.2) The motor improvement was observated in five cases of seven cases, but sensory recovery was noted by three cases of eight. No cases regained normal sensation.3) The patient in whom the neuroma was noted to be of firm consistence at operation.4) In electromyographical observation, high amp. NMU voltage were found in most of the muscles examined.5) In evoked electromyographical studies, there was in nearly all cases a decrease in m. c. v., amplitude and increase in threshold.
西日本整形・災害外科学会の論文