FIELD: medicine. SUBSTANCE: method involves detecting complex of anamnesis, clinical and radiological properties like acute or chronic trauma of knee joint or recent arthritis, kneepan mobility degree and femoral muscles atrophy, pain available in kneepan and knee joint area, manifested instability and crunch in knee joint, peripheral proliferation in the kneepan area and in the its articulation surface area on the femur, femoropatellar articulation fissure narrowing, lack of congruence in the femoropatellar articulation and gonarthrosis degree. Σi ≤ 8 scores being the case, light degree of changes in the femoropatellar articulation is to be determined and slow progress of arthrosis is predicted. 9 ≤ Σi ≤ 12 scores being the case, moderate changes in femoropatellar articulation and moderate progress of arthrosis is predicted. Σi ≥ 13 scores being the case, severe changes in femoropatellar articulation and rapid progress of arthrosis is predicted. EFFECT: enhanced accuracy of prognosis. 1 tbl
