title: Primary hip arthroplasty with 28-mm Metasul articulation.
abstract: This follow-up study reports on 69 patients at mean 13 years with total hip arthroplasty using 28-mm Metasul (Zimmer, Winterthur, Switzerland) metal-on-metal articulation. These results are not transferable to large-diameter head metal-on-metal articulations. Four new revisions, 3 for disassociation of the liner and 1 for mechanical loosening of the acetabulum, occurred since the previous report of mean 7.3 years. The prevalent cause of late revision is disassociation, which suggests a high frictional torque or impingement in these articulation surfaces. No revision was done for osteolysis. Overall, of the original 127 hips, 116 (91%) were known to have maintained their original components.
authors.affiliation: The Arthritis Institute at Good Samaritan Hospital, Los Angeles, CA 90017, USA.
authors.forename: Manish
authors.initials: M
authors.lastname: Dastane
authors.forename: Zhinian
authors.initials: Z
authors.lastname: Wan
authors.forename: Prashant
authors.initials: P
authors.lastname: Deshmane
authors.forename: William T
authors.initials: WT
authors.lastname: Long
authors.forename: Lawrence D
authors.initials: LD
authors.lastname: Dorr
mesh_terms: D000077:Acetabulum / Q000601:surgery; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D001696:Biomechanical Phenomena; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000502:physiology* / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D053208:Kaplan-Meier Estimate; D008137:Longitudinal Studies; D008297:Male; D008670:Metals; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D016896:Treatment Outcome
chemical_list: D008670:Metals