About the data
This special topic is based on 2010-11 finalised data, which includes eligible HES episodes with an episode start date between 1 April 2010 and 31 March 2011 and pre-operative questionnaires with a completion date between 1 April 2010 and 31 March 2011. Full headline coverage of the 2010-11 data are available on the Hospital Episode Statistics page (link below).
About the Oxford Hip and Knee Scores
The Oxford Hip Score (OHS) and Oxford Knee Score (OKS) are procedure-specific measures of patients' conditions, each based on answers to 12 questions which focus on aspects of the clinical conditions which would be expected to be affected by the procedures.