title: [Lumbar spondylolysis and sports. The radiological findings and statistical considerations].
abstract: The authors report the results of the retrospective study of 473 cases of spondylolysis observed on 3,505 plain films of the lumbar spine performed on athletes with low-back pain, from 1962 to 1992. The analysis of the results showed that: a) the incidence of spondylolysis was higher in athletes (13.49%) than in the general population (4-7%); b) the incidence of spondylolysis was higher in the distal portion of the lumbar spine (in 81.40% of cases L5 was involved); c) in 52% of cases spondylolysis was associated with spondylolisthesis--the latter of grade 1 according to Meyerding's classification in 74.39% of cases; d) bilateral and single-segment forms prevailed; e) the incidence of spondylolysis differed in the various sports according to the specific mechanical stimulation involved.
authors.affiliation: Sezione di Radiologia, Istituto di Scienza dello Sport, CONI di Roma.
authors.forename: F
authors.initials: F
authors.lastname: Rossi
authors.forename: S
authors.initials: S
authors.lastname: Dragoni
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D015994:Incidence; D007558:Italy / Q000453:epidemiology; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography; D013168:Spondylolisthesis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology; D013169:Spondylolysis / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000209:etiology; D013177:Sports / Q000706:statistics & numerical data*
vernacular_title: Lisi istmiche lombari e sport. Rilievi radiologici e considerazioni statistiche.