After the spine, which of the following joints is the second most common site of skeletal tuberculosis?

• A Knee
• B Hip ✓
• C Ankle
• D Shoulder

Explanation

Skeletal TB most frequently involves the spine, accounting for roughly half of all cases. The hip is the next most common site, followed by the knee; together these three account for the vast majority of osteoarticular tuberculosis. Ankle and shoulder involvement are comparatively rare, and the shoulder is often of the dry variety in adults. This frequency ranking dictates the order in which joint TB should be suspected clinically.

Reference: Harrison's Principles of Internal Medicine, 21st ed.

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Written and medically reviewed by the StethoPrep medical team.