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Mild instability (retrolisthesis) shows laminectomies at L4 and L5 and a postoperative.

Spondylolisthesis - What is Spondylolisthesis?

In the light of the primary diagnosis of Parkinson’s Syndrome, physicians tend to associate symptoms with the Parkinson’s Syndrome rather than that of the underlying Degenerative Disc Disease. In addition the dangers of treating the Degenerative Disc Disease with open surgery for this particular group of patients makes physicians or surgeons reticent to offer the surgical solutions which would be offered to less challenged patents.

First: degenerative settling across a spinal segment, in your case L4 settles on L5 and not lined.

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For more information on this topic, see Spondylolisthesis Imaging, Spondylolysis Imaging, Lumbar Spondylosis, Diagnosis and Management of Cervical Spondylosis, and Lumbosacral Spondylolysis.

L2-L3 and the term used to define a degenerative and an L3-L4 or L4-L5 levels.

Specializing in advanced surgery for chronic back and neck conditions, The Bonati Institute for Advanced Arthroscopic Surgery offers effective, minimally invasive procedures for treating spondylolisthesis. The Bonati Arthroscopic Laminectomy involves relieving any pressure on the spinal nerves by selectively removing a portion of the lamina, creating more room in the spine for the nerves. For a full description, please visit the Institute's website at .

Degenerative Spondylolisthesis Flashcards | Quizlet

La myélo-graphie montre une sténose majeure en L3-L4 et aussi en L2-L3, au-dessus de l’ancienne arthrodèse avec un arrêt.
Degenerative spondylolisthesis is a condition in which one vertebral body slips forward.
Retrolisthesis and Joint Dysfunction.


The pars interarticularis, or isthmus, is the bone between the lamina, pedicle, articular facets, and the transverse process. This portion of the vertebra can resist significant forces during normal motion. The pars may be congenitally defective (eg, in spondylolytic subtype of isthmic spondylolisthesis) or undergo repeated stress under hyperextension and rotation, resulting in microfractures. If a fibrous nonunion forms from ongoing insult, elongation of the pars and progressive listhesis results. This occurs in the second and third subtypes of type 2 (isthmic) spondylolisthesis. These typically present in the teenage or early adulthood years and are most common at L5-S1.


A unilateral pars defect (spondylolysis) may not demonstrate any degree of slippage; thus, a patient may have spondylolysis without spondylolisthesis. The reverse is also true as in the degenerative-type slips described below.

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The L4-5 level demonstrates degenerative The only specific finding on your MRI scan may be the anterolisthesis.
Degenerative changes in the spine visible on X-ray indicate osteoarthritis of the spine.
Degenerative spinal changes are often seen at the levels where a retrolisthesis is “A retrolisthesis hyper loads at least one disc and puts shearing forces.
shows degenerative disc disease at L5/S1 and (arrow) at L5/S1.

How to Pronounce Spondylolisthesis - YouTube

Biomechanical factors are significant in the development of spondylolysis leading to spondylolisthesis. Gravitational and postural forces cause the greatest stress at the pars interarticularis. Both lumbar lordosis and rotational forces are also believed to play a role in the development of lytic pars defects and the fatigue of the pars in the young. An association exists between high levels of activity during childhood and the development of pars defects. Genetic factors also play a role.