Dangerous devices: most medical implants have never been tested for safety.
D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation; D004868:Equipment Failure; D004869:Equipment Safety; D015391:Gastroplasty / Q000295:instrumentation; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D008670:Metals / Q000009:adverse effects / Q000627:therapeutic use; D019736:Prostheses and Implants / Q000009:adverse effects*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013526:Surgical Mesh; D014481:United States; D014486:United States Food and Drug Administration
D008670:Metals