Outcome measures-Review of case notes with TRISS (trauma score, injury severity score) methodology to compare expected and observed survival.Results-Most (421/678) admissions were due to single orthopaedic injury. Serious injury was uncommon with only 43 patients having injury severity scores >15. The calculated probability of survival matched the observed outcome for most of the seriously injured patients, with only two unexpected deaths. However, 36 of the 61 deaths in the 678 patients occurred in elderly patients with a fractured neck of the femur, and all of these patients had a high probability of survival predicted by TRISS methodology.
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