[Compressive pathology of ulnar nerve. Thirty seven cases reported (author's transl)].

The authors have reviewed 37 operated cases of ulnar nerve compression, on the level of the elbow and the wrist, with a minimum follow-up of one year. Traumatic etiologies are more common on these two levels. The authors find 32% of pure entrapment syndromes at the elbow, whereas this phenomenon does not seem to exist at the Guyon's loge. Mac Gowan's classification was used to range the patients in three degrees, according to the importance of the palsy before operation. Surgical treatment was is all cases, at least decompression. At the elbow was added anterior transposition of ulnar nerve beneath epitrochleal muscles or beneath the skin. Considering the results, these lesions are all the more severe, as they are higher (elbow) and more advanced.