title: Letter to the editor: Clinical comparison of polyethylene wear with zirconia or cobalt-chromium femoral heads.
authors: Marcel E
authors: ME
authors: Roy
authors: Leo A
authors: LA
authors: Whiteside
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D002858:Chromium Alloys; D005270:Femur Head / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D057052:Medical Device Recalls; D015207:Osteoarthritis, Hip / Q000601:surgery*; D020959:Polyethylene / Q000528:radiation effects; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013314:Stress, Mechanical; D009626:Terminology as Topic; D016896:Treatment Outcome; D015019:Yttrium; D015040:Zirconium
chemical_list: D002858:Chromium Alloys; C499362:yttria stabilized tetragonal zirconia; D015019:Yttrium; D020959:Polyethylene; D015040:Zirconium; C028541:zirconium oxide