herniated disc


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Related to herniated disc: sciatica

her·ni·at·ed disc

protrusion of a degenerated or fragmented intervertebral disc into the intervertebral foramen with potential compression of a nerve root or into the spinal canal with potential compression of the cauda equina in the lumbar region or the spinal cord at higher levels characterized by disruption of the annular fibrosis.

her·ni·at·ed disc

(hĕr'nē-ā-tĕd disk)
Protrusion of a degenerated or fragmented intervertebral disc into the intervertebral foramen with potential compression of a nerve root or into the spinal canal with potential compression of the cauda equina in the lumbar region or the spinal cord at higher levels.
Synonym(s): protruded disc, ruptured disc.
References in periodicals archive ?
In partial-regression group, volume of herniated disc reduced from 1433.1+-558.5 [1397,5(855.0-2044.0)] mm3 to 528.5+-331.5 [416,0(249.7-920.0)] mm3; the percentage of regression was 62.7+-16.4 [54,6(50.3-82.3)]%.
n = 505 Variables n % Mean (SD) Age (years) 39.08 [+ or -] 10.19 <25 23 4.6 [greater than or equal to] 436 86.3 25-<55 [greater than or equal to] 46 9.1 55 Sex Male 306 60.6 Female 199 39.4 Herniated disc level L1/2 2 0.4 L2/3 9 1.8 L3/4 29 5.7 L4/5 269 53.3 L5/S1 196 38.8 Low back pain No 454 90.1 Yes 48 9.5 Radiating leg pain No 80 15.8 Yes, radiating to thigh 127 25.2 Yes, radiating to calf 239 47.3 Yes, but with no 56 11.1 indication of area Unknown 3 0.6 Bilateral radiating leg pain No 432 85.5 Yes 66 13.1 Unknown 7 1.4 Unilateral radiating leg pain No 115 22.8 Yes 384 76.0 Unknown 6 1.2 IDH, intervertebral disc herniation; MRI, magnetic resonance imaging; SD, standard deviation.
The lateral ligamentum flavum was resected to expand the intervertebral foramen to allow the endoscope to penetrate into the spinal canal, after which the herniated disc tissue was resected.
Examples of this rare condition, disappearance of herniated discs, were reported occasionally [2-4].
Radiologically the herniated disc is big, central and rarely paramedian located.
They specialize in treating a number of conditions such as Building Disk Surgery, Pinched Nerve Surgery, Herniated Disc Surgery, Forminal Stenosis Surgery, Arthritis of the Spine Surgery, and Bone Spur Surgery.
If the annular fibers are sufficiently stressed, they can rupture, allowing the nuclear material to extrude through the annulus; this is called a ruptured disc prolapsed disc or herniated disc. Lumbar pathologic discs most often occur in the lower lumbar region, at the L4-L5 or L5-S1 joint levels (Figure 3).
Inter-vertebral disc degeneration is a com- mon phenonmenon with an increasing frequency wi- th age, upto 90% of individuals older than 60 years of age have at least one degenerated intervertebral disc.5 Intervertebral disc disease is a major epide- miological problem as 50 70% of adults experience at least one episode of the low back pain in their life time.6 One specific Patho-anatomic condition related to back syndromes, particularly the sciatic pain, is the lumbar disc herniation.7 In herniated disc, deta- ched part not only causes the mechanical compres- sion but also produces chemical mediators, responsible for the sciatic pain.
(BRTX) has received approval from the Western Institutional Review Board to complete a retrospective safety study on selected subjects previously treated by the company's brtxDISC bulging and herniated disc procedure.
The herniated disc fragment may migrate ventrally or laterally after penetrating the posterior longitudinal ligament.
King Abdullah underwent a similar operation in October last year and had back surgery twice in the US in 2010 for a herniated disc, after which he spent three months outside Saudi Arabia recuperating.
The king, in his late 80s, underwent an operation to tighten ligaments around his third vertebra in October of last year and had two rounds of back surgery in the United States in 2010 after suffering a herniated disc, leading to a three-month recuperation period outside the kingdom.