From: Does the degree of intraoperatively identified cartilage loss affect the outcomes of primary total knee arthroplasty without patella resurfacing? A prospective comparative cohort study
ICRS grade
Overall cohort (n = 212)
Group 1 (n = 110)a
Group 2 (n = 102)a
0
31 (14.6)
110 (51.9)
–
1
33 (15.6)
2
46 (21.7)
3
61 (28.8)
102 (48.1)
4
41 (19.3)
Total, n
212 (100)