SEPARATION OF CONJOINED TWINS

and about one and a half inches long-; it was coveted with many thickened and dilated blood vessels. Improvement was immediate. The tingling and stiffness of the fingers disappeared in a few days, and the patient soon found that he could execute fine movements with his fingers, which had been previously difficult or impossible. Convalescence was normal. He was given massage and sinusoidal stimulation to the muscles. There has been marked restoration of the affected muscles so that at this date, eight months after the operation, there is very slight difference between the two hands. Power has returned to the limb and restoration is complete. Summary 1. Late ulnar nerve palsy develops many years after the original injury-from three to forty-eight, in this case fifty-eight, years. 2. The external condyle is usually fractured, and nonunion may persist for many years. 3. The syndrome consists of the deformity of the external condyle, cubitus valgus, and ulnar nerve palsy. 4. The lesion is an intraneural fibrosis. The prognosis is good if the tension is relieved and the course of the nerve is shortened by anterior transposition.