TABLE 3.

Trochlear Lesions Assessed During Arthroscopic Surgery in 99 Knees (96 Patients) by Location^a

	Any Lesion	Mild Lesion	Severe Lesion
Proximal trochlea
Lateral	16	8	8
Central	81	55	26
Medial	37	16	21
Distal trochlea
Lateral	20	12	8
Central	79	57	22
Medial	22	12	10
Any location	94	50	44

^aData are shown as No. Mild lesions defined as International Cartilage Repair Society (ICRS) grade 1 or 2. Severe lesions are defined as ICRS grade 3 or 4.