What is mild thecal sac?

Posted on 05/03/2020
by Shantelle Lovell
05/03/2020
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What is mild thecal sac?

Thecal sac is the outer covering of the spinal cord. This means there are bone spurs on the back of the spinal bones, putting pressure on or affecting the front part of the outer layer of the (neck) cervical spinal cord.

What happens if a bulging disc goes untreated?

If a bulging disc is untreated, the symptoms will become worse as the constant pressure on the nerve intensifies the sensations. This can also cause issues with walking, and even while holding objects, as the pressure impedes the ability of the nerves to transmit information properly.

Is spinal stenosis a subluxation?

Degenerative subluxation of lumbar vertebrae (spondylolisthesis) is another cause of acquired stenosis of the lumbar spinal canal, particularly at the L4 and L5 levels, and may manifest clinically with neurogenic intermittent claudication as well.

What is a mild disc bulge?

When a disc is damaged, it may herniate, or push out, against the spinal cord and spinal nerves. A ‘disc bulge’ is a word commonly used to describe a slight outpouching of the disc. The words ‘disc bulge’ imply that the disc appears symmetric with a small amount of outpouching, and no significant herniation.

What is a posterior disc bulge?

What is the posterior thecal sac?

The thecal sac, enclosing the spinal cord and cauda equina, sits within a protective ring of bone consisting of the vertebral body anteriorly, and the pedicles, lamina, and spinous process posteriorly. The latter three structures form what is collectively referred to as the posterior arch.

What causes L5 S1 disc protrusion in lower back?

What causes L5 S1 Disc Protrusion and how to treat it. Do you have pain in your lower back? If you are older or engage in strenuous activity, it could be caused by a protruding disc, also known as a herniated, slipped, or bulging disc.

What causes compression of thecal sac in spinal stenosis?

Thecal sac effacement is seen in patients with extradural lesions located in midline. Effacement of posterior epidural fat is observed in severe stenosis of the central canal. In spinal stenosis, the thecal sac is compressed by the protruding disc anteriorly and ligamentum flavum posteriorly, forming an hourglass shape.

What are the symptoms of compression of the thecal sac?

Ankylosing spondylitis and chronic adhesive arachnoiditis can also affect the thecal sac. Symptoms of thecal sac compression include muscle weakness, low back pain, and other clinical signs.1 The thecal sac is meant to protect and insulate nerve tissues.

What causes canal stenosis at L4-L5, L5-S1 levels?

Disc desiccation with diffuse annular disc bulge, large right posterolateral disc protrusion seen qt L5-S1 level resulting in effacement of bilateral neural foramina (RrL), marked right lateral recess stenosis and moderate canal stenosis with compression over thecal sac and exiting predominantly right L5, 51 nerve roots.

How to relieve compression of the L5-S1 vertebrae?

Foraminotomy: The opening for the spinal nerve root (intervertebral foramen) is enlarged by trimming bony overgrowth, relieving compression. Facetectomy: The facet joints are trimmed to relieve compression of nerve roots. Lumbar interbody fusion: A degenerated disc is removed and L5-S1 vertebrae are fused together with implants or bone grafts.

Where is the L 5 located in the lumbar spine?

at the end of spine we have the sacrum, coccyx. For most people the lumbar spine is made of 5 vertebrae numbered from 1 to 5. So the L 5 stands for the last lumbar vertebra and the L5-S1 disc in the disc between the last lumbar vertebra and the Sacrum. Thecal sac is a fluid sac which surrounds the spinal nerves.