[Return to activity and return to sports after total knee replacement].

Background: Total knee arthroplasty (TKA) is one of the most common and successful operations in the field of orthopaedics, with a steadily increasing number of patients. However, as the patient population becomes younger, expectations regarding the outcome of the surgery are also changing. In addition to pain reduction and improved mobility, the longevity of the implant and the recovery of (everyday) activity in general (return-to-activity, RtA) and sporting activity in particular (return-to-sports, RtS) are becoming increasingly important.

State Of The Study: RtS with a tendency towards low-impact sports seems generally possible but is highly dependent on the individual characteristics of the patient. Despite comprehensive studies on treatment with TKA, there are no systematic studies and reliable conclusions on the key factors that enable patients to return to sports after TKA. Any recommendation by the responsible surgeons remains dependent on their subjective experience due to the lack of standardized implementation of an RtA/RtS assessment and the necessary long-term follow-up observation under control of patient-related confounding factors.