title: Cementless total hip arthroplasty in patients with advanced avascular necrosis.
abstract: We retrospectively reviewed a series of 40 cementless total hip arthroplasties in 31 patients with advanced avascular necrosis. The average follow-up was 58 months (range, 24 months to 108 months). The clinical failure rate was 20% (8 hips in 7 patients). Three of 7 threaded cups failed, and 2 of 32 porous coated hemispherical cups failed. Of the 5 stem failures, 1 was due to technical error, and 4 were well ingrown porous stems that succumbed to progressive osteolysis.
authors.affiliation: Department of Orthopaedics, University of Illinois at Chicago 60612, USA.
authors.forename: M H
authors.initials: MH
authors.lastname: Gonzalez
authors.forename: E T
authors.initials: ET
authors.lastname: Ortinau
authors.forename: W
authors.initials: W
authors.lastname: Buonanno
authors.forename: J
authors.initials: J
authors.lastname: Prieto
mesh_terms: D000328:Adult; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery*; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000000981:diagnostic imaging / Q000601:surgery; D011183:Postoperative Complications / Q000000981:diagnostic imaging* / Q000601:surgery; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D016896:Treatment Outcome