Results: Mean age was 74.18.7, women accounted for 78.9%, 81.6% of patients had degenerative joint disease on both sides of the knee.
Kết quả: Tuổi trung bình là 74,1  8,7, nữ giới chiếm 78,9%, 81,6% bệnh nhân có thoái hoá cả 2 bên khớp gối.