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Background  The choice of surgical methods for lumbosacral tuberculosis is controversial due to the complex anterior anatomy and peculiar biomechanics of the lumbosacral junction. The objective of this study was to explore the clinical effect of posterior intervertebral space debridement with annular bone graft fusion and fixation for the treatment of lumbosacral tuberculosis.    Methods  We retrospectively analysed data from 23 patients with lumbosacral tuberculosis who had undergone posterior intervertebral space debridement with annular bone fusion and fixation between January 2008 and September 2014. The mean age of the patients was 49.0 years (range, 27–71), and the mean duration of disease until treatment was 10.2 months (range, 6–20). The lumbosacral angle, visual analogue scale (VAS) score, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, American Spinal Injury Association (ASIA) grade and Social Functioning-36 (SF-36) score were determined to ascertain the clinical effects of the treatment.    Results  All patients underwent follow-up observation. The mean follow-up time was 34.2 months (range, 18–45), the mean operation time was 167.0 min (range, 130–210) and the mean blood loss was 767.4 ml (range, 500–1150). The lumbosacral angle was 21.0° ± 2.1° before operation, rising to 28.8° ± 1.7° after operation ( p  < 0.05) and being maintained thereafter. The mean VAS score before operation was 8.1 ± 0.6, decreasing to 1.2 ± 0.5 ( p  < 0.05) at the final follow-up. The mean ESR and CRP values were 49.1 ± 5.6 mm and 64.9 ± 11.9 mg/L, respectively, before operation, decreasing to normal at the final follow-up. The preoperative ASIA grade was C in 6 patients, D in 12 and E in 5. At the final follow-up, all patients had an ASIA grade of E except for one patient with a grade of D. For all patients, the SF-36 score at the final follow-up was higher than the preoperative and postoperative scores.    Conclusions  Posterior intervertebral space debridement with annular bone graft fusion and fixation is an effective treatment for lumbosacral spine tuberculosis.

Posterior intervertebral space debridement, annular bone grafting and instrumentation for treatment of lumbosacral tuberculosis