Quantitative T2-Mapping and T2-Mapping Evaluation of Changes in Cartilage Matrix after Acute Anterior Cruciate Ligament Rupture and the Correlation between the Results of Both Methods

Table 1

Demographic data of participants in two groups.

Demographics	ACL rupture group	Healthy control group	P value
Number,	23	23	/
Injury duration, mo	2–6 (mean, 3.5)	/	/
Interval between injury and surgery, mo	1–4 (mean, 2.5)	/	/
left/right knee	12/11	13/10	0.767
Sex, male/female,	5/18	7/16	0.502
Age, mean ± SD, y	31.5 ± 9.6	29.4 ± 8.4	0.527
BMI, mean ± SD, kg/m^2	23.4 ± 2.5	23.7 ± 2.2	0.757

ACL, anterior cruciate ligament; BMI, body mass index; SD, standard deviation.