Outerbridge used a grading scheme to classify changes in the articular cartilage seen on arthroscopy.
Arthroscopic Findings
Grade
normal
0
softening of cartilage without fibrillation
1
fibrillation with diameter < 1.3 cm (half an inch)
2
fibrillation with diameter >= 1.3 cm
3
exposed bone
4
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Specialty: Surgery, orthopedic, Immunology/Rheumatology
ICD-10: ,
