To ask the Secretary of State for Health how many people in England with hip replacements had to undergo a hip revision within (a) three years, (b) five years and (c) 10 years in the last 12 months. 
The Department is unable to provide this information, as the Hospital Episode Statistics data do not identify individual patients.In 2000, the National Institute for Clinical Excellence published guidance on the selection of prosthesis and set a benchmark that no more than 10 per cent. of patients should require revision surgery within 10 years, or evidence from at least three years follow up which when extrapolated, implies an equivalent performance.The Department established a National Joint Registry (NJR) for total hip and knee replacements in April 2003. This collects data on hip and knee replacements carried out in the national health service and private sector in England and Wales. The NJR will look at the performance of hip and knee implants, and will over time be able to provide this information.