title: Early results with the cementless Variall hip system.
abstract: This study presents the early results of the Variall cementless hip system, a further development of the reliable Alloclassic Zweymüller system. In a prospective randomized study, 319 patients (333 hips) underwent the Variall cementless hip system with four different bearings and were scored using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Score and the Short Form-36 health survey form, with a follow-up period of 3 years. The patients were grouped according to age, with those in the age range 23-75 years as group one (n = 285) and those over 75 years of age as group two (n = 48). For both the Short Form-36 and WOMAC scoring, worse function was found in group two (i.e., patients >75 years). In this group, the function scores were worse in patients who received a conventional polyethylene bearing. The clinical and radiological results after 5 or more years will lead to a clearer prediction.
authors.affiliation: Stiftung Orthopädische Universitätsklinik Heidelberg, Schlierbacher Landstrasse 200a, DE-69118, Heidelberg, Germany. arnold.suda@ok.uni-heidelberg.de
authors.forename: Arnold J
authors.initials: AJ
authors.lastname: Suda
authors.forename: Karl
authors.initials: K
authors.lastname: Knahr
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001843:Bone Cements; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011795:Surveys and Questionnaires
chemical_list: D001843:Bone Cements