Figure 1From: Arthroscopic debridement of the osteoarthritic knee combined with hyaluronic acid (Orthovisc®) treatment: A case series and review of the literatureArthroscopic view of the medial femoral tibia joint. A grade I (ICRS) lesion was noted on the medial femoral condyle and a grade III lesion with cartilage flap was seen on the medial tibia.Back to article page