Original research |
London School of Hygiene and Tropical Medicine;
Nuffield College, Oxford;
Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London;
London School of Hygiene and Tropical Medicine;
The College of Health;
Public Health Research Unit, Cambridge;
Nuffield Department of Orthopaedic Surgery, Nuffield Orthopaedic Hospital, Oxford;
South Tees Hospitals NHS Trust, Middlesbrough, UK
Objectives: To assess the impact on the outcome of total hip replacement of the length of timing spent waiting for surgery.
Methods: One hundred and forty-three orthopaedic and general hospitals provided information about aspects of surgical practice for each total hip replacement conducted between September 1996 and October 1997 for publicly and privately funded operations in five English health regions. These data were linked to patient information about hip-related pain and disability status (measured using the Oxford Hip Score) before operation and at 3 and 12 months after. Data were analysed using multiple regression analysis.
Results: Questionnaires were completed by surgeons for 10 410 (78%) patients treated during the recruitment period and by 7151 (54%) patients. Twelve months after total hip replacement, the majority of patients experienced substantial improvements in hip-related pain and disability (as measured by the Oxford Hip Score). Those patients who started with a worse Oxford Hip Score before the operation tended to remain worse after the operation. Worse pre-operative score was associated with an increased length of either outpatient or inpatient wait, and this trend remained after the operation. The relationship between waiting time and outcome remained after adjustment for possible confounding variables. A consistently worse score was observed in public compared with private patients at all three time-points. In addition, in both sectors, those patients who were socially disadvantaged had a worse score than more socially advantaged patients both before and after the operation.
Conclusions: Waiting for surgery is associated with worse outcomes 12 months later. Longer-term outcome needs to be considered to see if this association persists.
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