title: Survival of cementless femoral components after osteonecrosis of the femoral head with different etiologies.
abstract: We reviewed 41 patients with 55 cementless total hip arthroplasty operated for advanced osteonecrosis. Patients were divided into 2 groups according to etiology of the osteonecrosis. The first group included 17 cases with osteonecrosis without a systemic disease and the second group 38 cases with osteonecrosis associated with a systemic disease. The follow-up was on average 6.4 years (range, 2-12.8). Eight (15.4%) stem revisions had to be performed; all of them were in the patients with a systemic disease. Ten-year survival rates with femoral revision as the endpoint were in the first group 100% and in the systemic disease group 68% (P = .03). The data of this retrospective study indicate a correlation between the survival of the femoral component and the etiology of the osteonecrosis.
authors.affiliation: Department of Orthopaedic Surgery, University of Graz, Graz, Austria.
authors.forename: Roman
authors.initials: R
authors.lastname: Radl
authors.forename: Sigrun
authors.initials: S
authors.lastname: Egner
authors.forename: Marc
authors.initials: M
authors.lastname: Hungerford
authors.forename: Peter
authors.initials: P
authors.lastname: Rehak
authors.forename: Reinhard
authors.initials: R
authors.lastname: Windhager
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods; D005260:Female; D005271:Femur Head Necrosis / Q000209:etiology* / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D012086:Reoperation; D012189:Retrospective Studies