title: Are all hip implants created equal?  An FDA analysis takes on the question and finds that newer doesn't mean better.
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D002516:Ceramics; D018795:Device Approval; D005270:Femur Head; D006622:Hip Prosthesis; D006801:Humans; D008670:Metals; D020959:Polyethylene; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013499:Surface Properties; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D008670:Metals; D020959:Polyethylene