Theatre discipline remains a vital adjunct in the fight against infection in joint replacement surgery. The aim of this audit was to compare local theatre practise in two hospitals with that which is recommended in the literature. Factors assessed included the correct use of the ‘plenum’, the application of hats and masks, the opening of theatre doors intra-operatively, and the number of staff in the theatre.

Results suggest that basic principles and practises of theatre antisepsis are not being adhered to during joint replacement surgery. Suggestions are made as to how theatre behaviour may be improved in order to optimise the operating environment.