title: Orthopedic surgery: a new frontier.
authors.forename: James G
authors.initials: JG
authors.lastname: O'Brien
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D006801:Humans; D007431:Intraoperative Complications; D015207:Osteoarthritis, Hip / Q000601:surgery*; D010147:Pain Measurement / Q000379:methods; D017060:Patient Satisfaction; D011183:Postoperative Complications; D011475:Prosthesis Failure; D020127:Recovery of Function / Q000502:physiology; D012086:Reoperation; D016896:Treatment Outcome