Table 4.

the samples according to the ICRS scale for histological ranking.

Time	Injury group	Non-PTH intervention group	PTH intervention group	Normal control group
4 w	0.65±0.03	4.85±0.98	7.63±1.43*#	18.00±0.00
8 w	0.78±0.05	7.50±1.32	11.50±1.75*#$	18.00±0.00
12 w	2.33±0.82	10.96±1.62	16.35±1.85*&	18.00±0.00

All data were expressed as mean ± standard deviation, n=6; Compared with injury group or Non-PTH intervention group,

^*p<0.05; Compared with normal control group,

^#p<0.05; compared with PTH intervention group on the 4^th week,

^$p<0.05 or on the 8^th week,

^&p<0.05.