title: Improved survival rates in joint ops.
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000401:mortality*; D004739:England; D006620:Hip Fractures / Q000401:mortality* / Q000601:surgery*; D017052:Hospital Mortality / Q000639:trends*; D006801:Humans; D013222:State Medicine / Q000639:trends*; D015996:Survival Rate