5 A New Factor in the Etiology of Ulnar Drift

Abstract

From The Rheumatism Foundation Hospital (Veikko Laine, M.D., Medical Director; Kauko Vainio, M.D., Head of Department of Orthopaedics) Heinola, Finland. * Orthopaedic Associate, Louis A. Weiss Memorial Hospital, 4640 N. Marine Drive, Chicago, Ill. Clinical Associate, Department of Orthopaedics, University of Illinois, Chicago, Ill.