title: The evolving slope of the proximal femoral growth plate relationship to slipped capital femoral epiphysis.
abstract: We measured the physeal angle (slope) of the proximal femoral physis on the standard anteroposterior (AP) radiographs. Controls consisted of 307 hips in children aged 1-18 years. Similar measurements were made on the affected (slip) and unaffected (nonslip) sides of 107 children with manifest unilateral slipped capital femoral epiphysis. An age-related increase of 14 degrees occurs in the slope of the proximal femoral physis between ages 1 and 18 years, with maximal increase between ages 9 and 12 years. Increasing obliquity of the proximal femoral physis may be yet another factor contributing to slipped capital femoral epiphysis.
authors.affiliation: Department of Orthopaedic Surgery, Children's Hospital Medical Center, Akron, Ohio 44308.
authors.forename: N
authors.initials: N
authors.lastname: Mirkopulos
authors.forename: D S
authors.initials: DS
authors.lastname: Weiner
authors.forename: M
authors.initials: M
authors.lastname: Askew
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004839:Epiphyses, Slipped / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*; D005260:Female; D005269:Femur / Q000033:anatomy & histology / Q000000981:diagnostic imaging / Q000254:growth & development / Q000473:pathology*; D006132:Growth Plate / Q000033:anatomy & histology / Q000000981:diagnostic imaging / Q000254:growth & development / Q000473:pathology*; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography