Orthopaedics · Musculoskeletal System · Medium
Herniation
Meaning: Displacement of tissue beyond its normal boundary, especially disc nucleus through the annulus.
In practice: Over 90 percent of lumbar cases occur at L4/5 or L5/S1, and most shrink within months.
Quick check
Two questions on related orthopaedics words.
Which word means: Twisted neck posture with the head tilted to one side and rotated, often from muscle contracture.
Answer: Torticollis
Which word means: Inflammation of the joint linking the base of the spine to the pelvis, typical of axial spondyloarthritis.
Answer: Sacroiliitis
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