Return to Sports After Knee Arthroplasty

These return-to-sports-tests are based on validated procedures commonly used in sports orthopaedics, particularly following the stepwise testing concept described by Keller et al.. Initially, the participant's individual sport level is determined via structured anamnesis. This is then followed by level-specific functional testing. Participants who do not perform Level 1 testing correctly will not proceed to Level 2 testing -even if their anamnesis suggests a higher sport level. This stepwise approach ensures safety and prevents injury during the testing process.