PCO-chondral-kissing-lesion-Q1-Q2

How would you classify this lesion according to the ICRS classification?
Grade I
Grade II
Grade III
Grade IV
Grade V
How would you manage this condition? 
PT with emphasis on Quadriceps Strengthening
Microfractures
Mosaicoplasty
Cartillage reconstruction alone
Cartillage reconstruction with TTO
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