Fig. (5) Modified ICRS Score - surgeon assessments. Classification of the affected knee (a), crepitation (b), and functional status (c) were assessed by the baseline (BL) and at 1- (1y) and 2-years (2y) post-operation for the three treatment groups. Stacked bar charts show the number of patients with the corresponding functional status for each treatment group at BL and at 1 and 2 years.