title: Roentgenographic findings of the lumbosacral spine in preemployment examinations of lumbermen with special reference to spondylolisthesis.
abstract: The X-ray findings of the lumbar spine in the preemployment examination of 807 lumbermen are presented. From the applicants 11.4% were rejected because of roentgenological and/or clinical low back abnormalities. The youngest age group showed a high frequency of spondylolisthesis (8%). The possible role of heavy work in adolescence in the etiology of spondylolisthesis is discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D005387:Finland; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000000981:diagnostic imaging*; D011859:Radiography; D013122:Spinal Diseases / Q000000981:diagnostic imaging*; D013168:Spondylolisthesis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D014197:Trees