It is becoming widely accepted that research which considers only the outcome and not the costs associated with new technologies in health care, is of limited value in making decisions about the use of scarce resources. Economic evaluation is becoming a standard feature of clinical research but many published economic evaluations fall short of best practice in their methodology. We have described the essential features of economic evaluation, using published studies in orthopaedics, in order to try to improve the ability of orthopaedic surgeons to read, understand and appraise such studies critically, and to encourage them to consider including economic evaluation in future investigations.
J Bone Joint Surg [Br] 2000;82-B:2-8. Received 20 October 1998; Accepted after revision 23 July 1999Over the last three decades the demand for health care has increased rapidly. Since resources are scarce and cannot meet all demands, it is important to ensure that they are allocated in ways which maximise overall social benefit. The decision on which procedures to adopt depends upon their cost-effectiveness. Thus, economic evaluation of interventions in health care is now becoming common. It is concerned with the systematic comparison of the costs of the resource and the outcomes of alternative interventions, including drugs, devices, equipment and supplies, clinical procedures and organisational and managerial systems.In orthopaedics new technologies are emerging rapidly and these are often more expensive than existing treatments. Considerations of cost-effectiveness are therefore unavoidable. Economic evaluation in orthopaedics has been less common than in other areas of medicine, such as cardiology or oncology, but this is almost certain to change. In this review we outline how economic evaluation has been used so far in orthopaedics, and highlight the key points which should be considered in pursuing such studies. We wish to try to improve the ability of orthopaedic surgeons to read, understand and appraise published economic evaluations critically, but we also hope to encourage them to consider using such information in their future investigations.