Objective To study the distribution of rifampin(RFP) and 25-desacetylrifampicin (De-RFP) in the lesions of spinal tuberculosis in order to provide theoretical evidence of chemotherapy and surgical treatment of spinal tuberculosis.Methods Thirty-six patients with spinal tuberculosis received chemotherapy of 2SHRZ/6HRZ(8 month totally).According to having sclerotic bones in the lesions or not,they were divided into sclerotic group (13 cases) and non-sclerotic group (23 cases).Four weeks after chemotherapy,all...