The positive effect of “Samozdrav” in arthrosis is associated with the improvement of blood supply of the osseous and chondral tissues. Synovial fluid has a crucial role in the metabolism of the cartilage and menisci. Normal functioning of joints depends on the quality and the quantity of synovial fluid, produced by the synovial membrane. The quality and the quantity of the synovial fluid depend on the blood supply of the synovial membrane.