Preoperative Prediction of Postoperative Physical Function

End-stage KOA results in limitations in activities of daily life (ADL), work and leisure. Treatment for KOA is a stepped care process starting with a conservative approach and in which joint replacement surgery can be considered as the last step. Total knee arthroplasty (TKA) is regarded as the gold standard for the treatment of end-stage knee osteoarthritis (KOA). In 2020, 19.501 TKA surgeries were performed in The Netherlands, end-stage KOA being (97%) the most common reason for surgery.Until now no risk inventory prediction models have been made for the prediction of physical function at six weeks after TKA. These models may help to distinguish between having a high risk or low risk on a delayed recovery of physical function at six weeks after TKA. This could be beneficial for patients with a high risk. Because than the perioperative process of this patientgroup can be optimized and improved.

Inclusion Criteria:Scheduled for primary unilateral TKA surgeryTKA surgery due to end-stage OA of the kneeAble to perform the preoperative assessment 4 weeks before surgeryAble to fulfill the KOOS by phone 6 weeks postoperativelyMastery of the Dutch languageExclusion Criteria:Undergoing revision arthroplasty, bilateral TKA or hemi-arthroplasty surgeryTKA not due to KOAPatients who weren't able to perform the preoperative assessment or to fulfill the KOOS postoperativelyCognitive impairmentsComplete dependence on a wheelchairUnable to sign the informed consent form