Table 1.

The concentration of RFP, INH, PZA in sclerotic group at time phase of 120–130 min

Drug	Serum (μg/ml)	Ilium (μg/g)	Sclerotic wall of vertebrae (μg/g)	Subnormal bone (μg/g)	Foci inside sclerotic wall (μg/g)
RFP	8.94 ± 2.15**	4.87 ± 1.65	0.47 ± 0.11**	4.32 ± 1.59	Undetected
INH	5.48 ± 2.73**	2.23 ± 0.78	0.057 ± 0.011**	2.14 ± 0.74	Undetected
PZA	31.54 ± 6.78**	7.61 ± 2.62	0.82 ± 0.26**	7.58 ± 2.45	Undetected

Compared with ilium in same drug group (except focus inside sclerotic wall), *P < 0.05; **P < 0.01