Prevalence, incidence and resolution of abscesses and sinuses in patients with tuberculosis of spine: A 5-year results of patients treated with short course chemotherapy with or without surgery in Madras

A controlled clinical study comparing 6 or 9 months of ambulatory chemotherapy alone with radical surgery plus 6 months of chemotherapy was undertaken in patients with spinal tuberculosis in Madras. The prevalence of sinuses and/or clinically evident abscesses was 49(19%) of 253 patients, with significantly higher proportion in patients with lumbar or lumbo-sacral lesions. The incidence of lesions appearing after the start of chemotherapy was 32 (16%) of 204 patients. By five years, all had resolved. The resolution of the lesions was significantly faster and the incidences significantly lower in the radical surgery group than in the two ambulatory series. Mediastinal abscesses were observed on radiographs in 66 (66%) of 100 patients with thoracic or thoraco-lumbar lesions. By five years, the lesions had disappeared in all except two patients and the disappearance was significantly faster in the radical surgery group than in the two ambulatory series. There was no recurrence of these lesions during a period of five years