Table 2.

T1 value, T2 value and PD value in each group and pairwise comparison of T2 value among the 3 groups

Parameters	Normal group	Degeneration group	Torn group	F	P
T1 value (ms)	905.59±282.54	1028.21±286.25	1031.81±286.27	0.852	0.431
T2 value (ms)	32.81±2.51	44.85±3.98	54.42±3.82	247.87	<0.01
	32.81±2.51	44.85±3.98	——	——	<0.001
	——	44.85±3.98	54.42±3.82	——	<0.001
	32.81±2.51	——	54.42±3.82	——	<0.001
PD value (pu)	36.04±6.99	33.98±8.50	34.23±9.84	0.219	0.804