Accuracy and completeness of orthopaedic computer audit.

The completeness of data contained in a microcomputerized audit system has been compared with the operating theatre record book. The computerized audit system contained details of only 63% of the operations performed. Of the missing patients, 52% had never been completed. There were no failures of the computer system itself. Serious deficiencies in the methods of data entry were found and methods are described to overcome these deficits. The collection of audit information requires a disciplined approach and close supervision by a designated member of the surgical team.