The most commonly diagnosed type of arthritis is osteoarthritis (OA) of the knee joint, the incidence of which constantly increases with increasing life expectancy. Theaim of this case study is the multidisciplinary management of the patient with knee endoprosthetics. The case was defined as the right knee joint's osteoarthritis operative treatmentand rehabilitation. A 64-year-old -male patient complained of right-sided stage III idiopathic gonarthrosis. The patient passed the general blood analysis, biochemical blood analysis,coagulogram, and urine analysis. The patient passed the ultrasound low limbs veins examination. The total right knee endoprosthesis with the implantation was done. The prosthesiscomponents as Journey II BCS Femoral Component Right 4, Tibial component Journey Right 4, and liner Journey II BCS XLPE Right 10 mm 3-4 were fixed to the male patient. Thepatient's rehabilitation period passed through three stages: III, idiopathic gonarthrosis with various deformities of the right lower limb; stage III, patellofemoral arthrosis, synovitis ofthe right knee joint, osteoporosis, complicated joint insufficiency, and stage III. The male patient was prescribed the non-steroidal anti-inflammatory drugs (NSAIDs). The male patientreceived the treatment with the hyaluronic acid. The male patient had no improvement results for four years, and the pharmacological treatment was unsuccessful. The prosthesiscomponents are Journey II BCS Femoral Component Right 4, Tibial component Journey Right 4, and liner Journey II BCS XLPE Right 10 mm 3-4 fixed to the male patient. Physicalrehabilitation after the total knee endoprosthetic was performed several stages after surgery. Stage one - immediately after surgery during the first 5 days. Stage two – the clinicalstage in the early recovery period. Stage three - after the hospital during the first 3 months. After 6 months, the male patient was allowed to walk without the additional support.He was restricted from lifting weights and preventing falls. A year after the operation, the right knee joint movements' amplitude was sufficient, and there was no pain syndrome.Total knee endoprosthesis leads to high patient satisfaction and provides patients with life-quality benefits, pain relief, and function. The patient's rehabilitation period, includingphysical exercises and physiotherapy, is a very important stage. Effective patient rehabilitation after knee endoprosthetics is possible using multidisciplinary management.