Journal of Bone and Joint Surgery, 1925;7:997-1007.
© 1925 by The Journal of Bone and Joint Surgery, Inc
MALFORMATION OF THE LOWER SPINE BASED ON A ROENTGENOGRAPHIC STUDY OF CHILDREN AND ADULTS
ARCHER O'REILLY M.D., F.A.C.S.1
1 Associate in Clinical Orthopaedic Surgery, Washington University Medical School, St. Louis
It would seem from this study that variations in the lumbo-sacral region occur frequently in persons who have never had any symptoms of back-ache and that some of these variations are very marked and severe. They also occur in persons who lead an active life and who work hard. It is probable that these variations predispose to back-ache, but that posture, muscle relaxation, and ligamentous strain are the actual causes.