Knee Replacement Surgery, or knee arthroplasty, is the removal of diseased parts of the knee joint and replacement with new, artificial parts. Knee Replacement Surgery is performed by orthopaedic surgeons.

The wait time for knee replacement surgery is a measure (in weeks) from the date of decision to treat to the date of treatment.

The table below shows the time in weeks in which 90% of patients had received their surgery, for the three months being reported.