title: Fixation and osteolysis with Metasul metal-on-metal articulation.
abstract: The purpose of this study was to report the prevalence of osteolysis and loss of fixation using Metasul metal-on-metal articulation couples. Ninety-two patients with 96 hips with Metasul articulation couples were followed for 5 to 11 years. By patient self-assessment, 89 (93%) patients scored themselves as good or excellent. The occurrence of osteolysis and the grading of fixation were obtained from plain radiographs. The clinical evaluation for these patients was performed by patient self-assessment. With the use of plain radiographs, there was no osteolysis observed in these 96 hips other than calcar resorption (6 hips [6.3%]). All components were fixed, except for 1 loose cup that was revised, and this level of fixation allowed a fair evaluation for osteolysis around well-functioning implants.
authors.affiliation: The Arthritis Institute, Centinela Hospital Medical Center, Inglewood, California 90301, USA.
authors.forename: Lawrence D
authors.initials: LD
authors.lastname: Dorr
authors.forename: Zhinian
authors.initials: Z
authors.lastname: Wan
authors.forename: Leigh Ellen
authors.initials: LE
authors.lastname: Sirianni
authors.forename: Myriam
authors.initials: M
authors.lastname: Boutary
authors.forename: Shaun
authors.initials: S
authors.lastname: Chandran
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D010014:Osteolysis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology*; D011183:Postoperative Complications; D015995:Prevalence; D011474:Prosthesis Design; D011859:Radiography; D012086:Reoperation; D012647:Self-Assessment