Multidrug-resistant tuberculosis of spine diagnosis and management: An institutional experience of 21 cases.

Abstract

Background: We aimed to establish a standardized protocol for managing multidrug-resistant (MDR) spinal tuberculosis (TB), addressing the surgical options, ranging from computed tomography-guided biopsy to intraoperative sampling.

Methods: This study developed a treatment/management protocol based on an analysis of clinical, radiological, and postoperative outcomes for 21 patients with spinal MDR-TB. Over 24 months, 21 patients with multidrug-resistant spinal TB underwent the following testing: erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), numerical rating scale (NRS), and the American Spinal Injury Association Scale. Radiological criteria were based upon a comparison of preoperative and 6-month to 2-year postoperative plain radiographs.

Results: The 21 patients underwent guided biopsies (35%) or intraoperative sampling (65%). For the surgical cases, dorsal vertebrae were most frequently involved (75%), and 90% underwent posterior surgical procedures. Postoperatively, ESR, CRP, kyphosis angle, and NRS score were significantly reduced. The 3 MDR patients who failed treatment were transitioned to the extensively drug-resistant (XDR) protocol wherein bedaquiline, linezolid, cycloserine, and clofazimine were given after drug sensitivity testing drug regimen, needed no further surgery, and none exhibited additional neurological deterioration.

Conclusion: Regular clinical, laboratory, radiological, and outcome analysis is vital for following MDR spinal TB patients; early detection of relatively rare treatment failures (i.e., 3/21 patients in this series) allows for prompt initiation of XDR treatment, resulting in better outcomes.