Prediction of deformity in spinal tuberculosis

Area of Science:

• Orthopedics
• Infectious Diseases
• Radiology

Background:

• Spinal tuberculosis (TB) can lead to progressive kyphosis.
• Severe kyphosis may result in paraplegia, respiratory issues, and deformity.
• Surgical correction is considered for significant or worsening spinal deformities.

Purpose of the Study:

• To predict the final kyphotic angle in spinal TB.
• To identify patients at risk of unfavorable outcomes early.
• To guide timely surgical intervention for spinal tuberculosis.

Main Methods:

• Retrospective analysis of clinical and radiographic data from 53 spinal TB patients.
• Focus on thoracic and thoracolumbar spine with initial kyphotic angles < 40 degrees.
• Calculation of indexed total bone height loss and assessment of location (thoracic vs. thoracolumbar).

Main Results:

• No single independent predictor for unfavorable outcomes was identified.
• Bone height loss > 0.3 combined with thoracolumbar location predicted a 38% chance of unfavorable outcome.
• Bone height loss ≤ 0.3 with thoracic location had only a 3% chance of unfavorable outcome.

Conclusions:

• A simple algorithm can predict kyphosis progression in spinal TB.
• Early identification of high-risk patients is possible using bone height loss and spinal location.
• This aids in deciding on early surgical intervention for spinal tuberculosis.