Table 2.

Median (IQR) of KOOS, IKDC, and Marx Outcomes over Time

	Score Range	Baseline	2 Years	6 Years	10 Years
KOOS symptoms	0–100	71 (57, 82)	86 (75, 93)	89 (75, 96)	89 (75, 96)
KOOS pain	0–100	75 (61, 89)	92 (83, 97)	94 (86, 100)	94 (86, 100)
KOOS ADL	0–100	88 (72, 96)	99 (93, 100)	99 (93, 100)	99 (93, 100)
KOOS sports & recreation	0–100	50 (25, 75)	85 (70, 95)	85 (70, 100)	90 (70, 100)
KOOS QOL	0–100	38 (25, 50)	75 (56, 88)	75 (63, 94)	75 (63, 94)
IKDC	0–100	52 (40, 64)	85 (72, 92)	86 (74, 93)	85 (72, 94)
Marx Activity Level	0–16	12 (8, 16)	9 (4, 13)	7 (3, 12)	6, (2, 10)

Key: ADL = activities of daily living; QOL = quality of life