Anterior versus Posterior Approach in Surgical Treatment of Tuberculous Spondylodiscitis of Thoracic and Lumbar Spine
Fady Michael fahmy Ibrahim, Zakaria Hassan Ibrahim, Abdishakur Mohamud Ahmed- General Medicine
Background
Spinal tuberculosis is the most common encountered extra-pulmonary form of the disease and accounts for around 50% of musculoskeletal tuberculosis cases, thoracic spine is the most commonly affected, and involvement of lumbar and lumbosacral region is less common, spinal tuberculosis can cause severe neurological deficits, kyphotic deformities, and paraplegia.
Aim of the Work
The aim of this study is review the literature comparing the clinical, radiological and functional outcome of anterior versus posterior surgical debridement and fixation in patients with thoracic and lumbar tuberculous spondylodiscitis.
Patients and Methods
In this meta-analysis, we combined 25 studies that compared the clinical outcomes of the anterior and posterior approaches in treating 1797 patients with thoracic and lumber spinal TB. This study was approved by the Ethics Committee of Ain Shams University Faculty of Medicine. Written informed consent was not needed because of the study design (systematic review). Based on patient safety and the efficacy of the procedures, we raised three clinically crucial questions to determine the optimal surgical procedure in treating thoracic and lumbar tuberculosis. The primary data used as evidence to answer these questions were obtained from the treatment results, such as the radiologic data and patient-related outcomes.
Results
The results showed that there is no statically significant different in the operative time for the anterior approach (220.8-51.5 minutes) versus posterior approach (213.9-69.3 minutes), and no statistically significant difference was detected. Blood loss was significantly greater in the anterior approach (1125.0-275.5 mL) than in the posterior approach (710.4-192.4 mL).
Conclusion
The posterior approach showed a higher potential for maintaining the correction of deformity and a lower overall surgical complication rate; however, both groups showed no statistically significant differences in operative time, blood loss, radiological and clinical outcome; therefore posterior approach could be used as an alternative procedure to treat thoracic and lumbar tuberculosis patients in terms of pain control, Cobb’s angle, and reduction of complications, however; posterior-only approach alone cannot be used in cases of anterior abscess formation or multilevel involvement where an anterior debridement is mandatory, so; when deciding among the two procedures for treatment of thoracic and lumbar spinal tuberculosis, surgeons must thoroughly consider the patient’s specific features of spinal tuberculosis, the surgeon’s own surgical experience, the risks of surgical complications ranging from neurological to structural, and the different possible outcomes.