There is no definite evidence about the most effective treatment approach in early-stage rehabilitation after total knee arthroplasty surgery. The purpose of this study is to investigate the effects of mobilization exercises applied with classical exercises on pain, joint range of motion, edema, function, quality of life and patient satisfaction in early stage rehabilitation after total knee arthroplasty surgery. Patients with bicompartmental total knee arthroplasty operation due to knee osteoarthritis will randomly assign to 2 groups. Patients in group 1 will treat with mobilization exercises in addition to classical exercises performed in the early post-op period; patients in group 2 will treat only with classical exercises.