Minor changes since publication
April 2023: Supporting information has been updated to align with the Centre for Perioperative Care's (2023) National safety standards for invasive procedures (NatSSIPs 2).
Links for data sources for NHS Digital's PROMS for hip and knee replacements have also been updated. Examples of commissioning organisations have been removed from the commissioner audience descriptor to reflect the range of current and future commissioning arrangements, and also that these organisations have a legal duty to commission services, which they are aware of.
June 2022: Reference to NICE's COVID-19 rapid guideline: arranging planned care in hospitals and diagnostic services in the definitions section of statement 1 has been removed because the guideline has been withdrawn.
April 2022: Data source information has been updated to reflect changes to the National Joint Registry website.