title: [Radiologic evaluation of the rotation center of the hip].
abstract: We studied 98 normal hips in 54 patients in order to assess precise settlement of the theorical hip center using the U landmark as reference i.e. determine A distance (vertical settlement) and C distance (horizontal settlement)) A being the vertical distance between U landmark and the femoral head center, C the horizontal distance between U landmark and the femoral head center. We found two indexes (A/E = 0.2 and C/D = 0.3) which allowed us to fix that center in vertical (A/E) and in horizontal (C/D) direction even in case of bilateral hip dysplasia, and which can be used either in pre-operative planning or in post-operative evaluation. D being the horizontal distance between the U landmarks, and E the vertical one between the U landmark and the sacroiliac joint.
authors.affiliation: Service d'Orthopédie Traumatologie B., CHRU de Lille.
authors.forename: F
authors.initials: F
authors.lastname: Pierchon
authors.forename: H
authors.initials: H
authors.lastname: Migaud
authors.forename: A
authors.initials: A
authors.lastname: Duquennoy
authors.forename: C
authors.initials: C
authors.lastname: Fontaine
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006617:Hip Dislocation / Q000000981:diagnostic imaging* / Q000601:surgery; D006621:Hip Joint / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography
vernacular_title: Evaluation radiologique du centre de rotation de la hanche.