title: The assessment of contact stress in the hip joint after operative treatment for severe slipped capital femoral epiphysis.
abstract: We determined contact stress on the articular surface of the hip joint in a group of patients who underwent operative treatment for severe slipped capital femoral epiphysis. Two different procedures were considered: the modified osteotomy of Dunn-Fish and the osteotomy of Imhäuser. In order to determine the stress distribution, a three-dimensional mathematical model was used taking into account the geometrical parameters of the pelvis and hip, which were measured from standard antero-posterior radiographs. We found that the Dunn-Fish procedure produced lower peak stress than the Imhäuser procedure.
authors.affiliation: Institute of Metal Technology-IMT Ljubljana, Lepi pot 11, SI-1000 Ljubljana, Slovenia.
authors.forename: O
authors.initials: O
authors.lastname: Zupanc
authors.forename: V
authors.initials: V
authors.lastname: Antolic
authors.forename: A
authors.initials: A
authors.lastname: Iglic
authors.forename: A
authors.initials: A
authors.lastname: Jaklic
authors.forename: V
authors.initials: V
authors.lastname: Kralj-Iglic
authors.forename: J
authors.initials: J
authors.lastname: Stare
authors.forename: R
authors.initials: R
authors.lastname: Vengust
mesh_terms: D000293:Adolescent; D000886:Anthropometry; D002648:Child; D004839:Epiphyses, Slipped / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D015233:Models, Statistical; D010027:Osteotomy / Q000379:methods*; D011859:Radiography; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013314:Stress, Mechanical; D016896:Treatment Outcome; D016474:Weight-Bearing