Question:
In tuberculosis of the spine, which is the most common site of involvement?
In tuberculosis of the spine, which is the most common site of involvement?
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Pott's spine favours the lower thoracic to lumbar junction.
Updated On: Jun 24, 2026
- Sacral
- Cervical
- Dorsolumbar
- Lumbosacral
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The Correct Option is C
Solution and Explanation
Step 1: Tuberculosis of the spine, known as Pott's disease or tubercular spondylitis, is the most common form of skeletal tuberculosis and typically begins in the vertebral body, often near the paradiscal region.
Step 2: The most commonly involved region is the dorsolumbar junction. Within this, the lower dorsal (thoracic) segment is the most frequently affected, followed by the lumbar segment, which is why dorsolumbar is the best answer.
Step 3: Why the other options are wrong: cervical spine tuberculosis is relatively uncommon though dangerous when it occurs; sacral and lumbosacral involvement is far less frequent than the thoracolumbar region.
Step 4: Therefore the dorsolumbar region is the correct site of predilection in spinal tuberculosis.
Step 2: The most commonly involved region is the dorsolumbar junction. Within this, the lower dorsal (thoracic) segment is the most frequently affected, followed by the lumbar segment, which is why dorsolumbar is the best answer.
Step 3: Why the other options are wrong: cervical spine tuberculosis is relatively uncommon though dangerous when it occurs; sacral and lumbosacral involvement is far less frequent than the thoracolumbar region.
Step 4: Therefore the dorsolumbar region is the correct site of predilection in spinal tuberculosis.
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