grade 0: normal
grade 1: softening
grade 2: partial thickness defect, <50% cartilage depth
grade 3: partial thickness defect, >50% cartilage depth
grade 4: full thickness defect with or without underlying bone changes
Experience is knowledge. Rest is information.
grade 0: normal
grade 1: softening
grade 2: partial thickness defect, <50% cartilage depth
grade 3: partial thickness defect, >50% cartilage depth
grade 4: full thickness defect with or without underlying bone changes