Herniated disc

Teenager with

low back pain and bilateral radicular pain for 5 monthsSagittal and axial (at the L5 level) T1 MRI without contrast of the lumbar spine shows central and posterior displacement of the L5 intervertebral disk.The diagnosis was disc herniation.

pediatricimaging.org • CC-by-nc-sa 4.0

Diskusprolaps

L4/5 links paramedian bis rezessal, nach kaudal umgeschlagen und wohl sequestriert (STIR sagittal).

Wikipedia • CC BY-SA 4.0

Disc

herniation • Intervertebral disc disease nomenclature (illustration) - Ganzer Fall bei Radiopaedia

Gaillard F, Intervertebral disc disease nomenclature (illustration). Case study, Radiopaedia.org (Accessed on 02 Oct 2023) https://doi.org/10.53347/rID-36346 • CC by-nc-sa 3.0 (modified)

Intervertebral

disc • Disc herniation nomenclature - Ganzer Fall bei Radiopaedia

Skalski, M. Disc herniation nomenclature. Case study, Radiopaedia.org. (accessed on 01 Nov 2022) https://doi.org/10.53347/rID-32040 • CC by-nc-sa 3.0 (modified)

Disc

herniation • Disc herniation affecting transiting nerve root - lumbar spine - Ganzer Fall bei Radiopaedia

Skalski M, Disc herniation affecting transiting nerve root - lumbar spine. Case study, Radiopaedia.org (Accessed on 02 Oct 2023) https://doi.org/10.53347/rID-60176 • CC by-nc-sa 3.0 (modified)

Disc

herniation • Herniated disc - location - Ganzer Fall bei Radiopaedia

Lustosa L, Herniated disc - location. Case study, Radiopaedia.org (Accessed on 18 Apr 2024) https://doi.org/10.53347/rID-175917 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

Disc herniation refers to the displacement of intervertebral disc material beyond the normal confines of the disc but involving less than 25% of the circumference (to distinguish it from a disc bulge). A herniation may contain nucleus pulposus, vertebral endplate cartilage, apophyseal bone/osteophyte and annulus fibrosus.

Disc herniations can be divided into groups in a variety of ways. Commonly they are divided into protrusion vs extrusion:

protrusion
- base wider than herniation
- confined to disc level
- outer annular fibers intact
extrusion
- base (a.k.a. neck) narrower than herniation 'dome'
- may extend above or below endplates or adjacent vertebrae
- complete annular tear with passage of nuclear material beyond disc annulus
- disc material can then migrate away from annulus or become sequestered

Herniations can further be classified as:

contained
- with intact outer fibers of annulus fibrosus and posterior longitudinal ligament, or
- with intact posterior longitudinal ligament alone
not contained
- tear of outer fibers of annulus fibrosus and posterior longitudinal ligament

Herniated disc

See also

Siehe auch:

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