My object is to present the observations obtained by a close study of 400 cases of anterior poliomyelitis of the 1916 epidemic, seen at the clinic of the Hospital for Deformities and Joint Diseases.
These cases made their appearance at an average of about ten weeks after onset of illness, and show: (1) regional distribution; (2) a large amount of cranial nerve involvement; (3) muscular distribution; ( 4) unreliability of the reaction of degeneration to permit judgments concerning the extent of muscle paralysis, and (5) numerous deformities.
1. Of the entire series, thirty-two patients, or 8 per cent., showed no evidence of muscle paralysis. Of the remaining 368 patients, 286, or 78 per cent., showed some involvement in the lower extremities. Thirtyeight per cent. showed involvement of only one limb. Of this number, 10 per cent. were of the upper extremity and 28 per cent. of the lower. In 20 per
JAHSS SA. CLINICAL STUDY OF FOUR HUNDRED CASES OF ANTERIOR POLIOMYELITIS. JAMA. 1917;LXVIII(10):754–756. doi:10.1001/jama.1917.04270030086003