TABLE 3.

Change in T2 Relaxation Time of Each Cartilage and Meniscal Region ^a

	T2 Relaxation Time, milliseconds
	First MRI (19.9 ± 7.4 months)	Second MRI (52.3 ± 8.3 months)	Δ First vs Second MRI	P
Cartilage regions
MFC	61.4 ± 15.8	47.5 ± 14.8	13.9 ± 3.3	<.001
MTP	31.1 ± 10.7	26.3 ± 6.5	4.8 ± 2.4	.050
LFC	47.2 ± 8.7	49.1 ± 7.3	-1.9 ± 1.4	.036
LTP	27.3 ± 9.7	27.7 ± 7.0	-0.5 ± 1.1	.821
Patella	40.2 ± 8.6	39.8 ± 7.6	0.4 ± 1.3	.818
TG	52.1 ± 10.7	52.2 ± 10.9	-0.2 ± 0.9	.956
Meniscal regions
MMAH	24.2 ± 10.0	23.8 ± 9.9	0.8 ± 1.1	.841
MMPH	32.2 ± 15.7	30.5 ± 10.8	1.7 ± 1.3	.426
LMAH	25.1 ± 13.5	26.2 ± 7.8	-1.1 ± 2.1	.610
LMPH	17.9 ± 9.7	20.9 ± 9.4	-2.9 ± 0.7	.154

^a Data are presented as mean ± SD. Bolded P values indicate statistically significant difference between first and second MRI (P < .05). LFC, lateral femoral condyle; LMAH, lateral meniscus anterior horn; LMPH, lateral meniscus posterior horn; LTP, lateral tibial plateau; MFC, medial femoral condyle; MMAH, medial meniscus anterior horn; MMPH, medial meniscus posterior horn; MRI, magnetic resonance imaging; MTP, medial tibial plateau; TG, trochlear groove.