Disc sequestration

Disc herniation in which a fragment has completely separated from its parent disc.

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Understanding this term

Sequestration describes herniated material that has lost continuity with its parent disc. It may remain near the original level or migrate within the epidural space. Free fragment does not mean it travels unrestricted throughout the body. Its relationship to roots or spinal cord is central to its clinical significance.

Symptoms and assessment

Symptoms may resemble other herniations: radiating pain, tingling or motor loss. MRI locates the fragment and clarifies compressed structures. Some fragments may regress naturally; a stable examination and absence of emergency features are essential before observation with conservative management is considered.

Assessment considers symptom onset, distribution, restricted activities and medical history. Imaging findings must be compared with the clinical examination: a visible abnormality does not, on its own, establish the source of pain.

Management and outlook

A traction table cannot be promised to suck the fragment back into the disc. The choice between monitoring, symptom management and surgery rests on assessment, including specialist input when needed, with explicit criteria for reassessment.

For a mechanical problem without concerning findings, care aims for a gradual return to activity, individually selected exercises and measurable functional goals. Manual care may complement this approach when the examination supports it. Progress is judged through walking, sleep and daily tasks, as well as symptoms, rather than through an image alone.

Motorized spinal decompression is a form of traction. It cannot guarantee disc repair or disappearance of a herniation. NICE does not recommend traction for low back pain with or without sciatica; any proposed care should therefore explain uncertainty, alternatives and the criteria for reassessment.

When to seek prompt assessment

New or progressive weakness, newly impaired walking, loss of sensation around the saddle region, or new bladder or bowel control problems require urgent medical assessment.

Frequently asked questions

Does a sequestered fragment always require surgery?

No. Examination, deficits and the course matter more than the term alone.

Can it be manually put back into the disc?

That mechanism cannot be claimed or guaranteed for manipulation.

Can imaging establish the diagnosis alone?

No. Findings must fit the clinical history and examination before they guide treatment.

Should all activity stop?

Usually not: loading is adjusted and gradually increased according to tolerance and the diagnosis.

How should progress be monitored?

Track functional abilities, neurological symptoms and resumed activities so care can be adjusted.

Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 12, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.