title: Anatomical basis for the choice of the femoral implant in the total hip arthroplasty.
abstract: There is within the population a considerable variation in the endosteal canal anatomy of the proximal extremity of the femur. This anatomical variation might jeopardize the result of the total hip arthroplasty when the surgeon uses a cementless femoral shaft. Indeed, if the secondary fixation of an implant stays under the dependency of many parameters, one has to obtain before anything else a very good primary stability, obtained by the morphological appropriateness of the bone-implant. The authors propose to define the cementless indications, as regards total hip arthroplasty, defining two radio-anatomical parameters: the Cortico-Medullary Index and the Femoral Flare Index.
authors.affiliation: Laboratoire d'Anatomie Médico-Chirurgicale, Faculté Laënnec, Lyon, France.
authors.forename: M H
authors.initials: MH
authors.lastname: Fessy
authors.forename: B
authors.initials: B
authors.lastname: Seutin
authors.forename: J
authors.initials: J
authors.lastname: Béjui
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D001186:Artificial Limbs; D005260:Female; D005269:Femur / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D008875:Middle Aged