Which nerve is affected in L4-L5 disc herniation?

For example, a typical posterolateral (behind the disc and to the side) lumbar disc herniation at the L4-L5 level often affects the nerve that traverses the L4-L5 level and exits at the L5 level, called the L5 nerve root.

What do the nerves between L4 and L5 control?

L4-L5 intervertebral disc. This disc provides cushioning and shock-absorbing functions to protect the vertebrae from grinding against each other during spinal movements. The height of the L4-L5 disc plays an important role in maintaining the lordosis (inward curvature) of the lumbar spine.

Why is posterolateral herniation the most common?

A herniation is more likely to occur posterolaterally, where the annulus fibrosus is thinner and lacks structural support from the anterior or posterior longitudinal ligaments. Due to its proximity, a posterolateral herniation is more likely to compress the nerve root.

Which nerve root is affected by disc herniation?

L5 nerve root exits at the L5-S1 foramina. When compressed by a herniated disc, it causes back pain that radiates into the buttock, lateral thigh, lateral calf, the dorsum of the foot, and the great toe.

How do you fix a herniated disc L4-L5?

Surgical Treatments for L4-L5

  1. Microdiscectomy. In this surgery, a small part of the disc material near the nerve root is taken out.
  2. Laminectomy.
  3. Foraminotomy.
  4. Facetectomy.
  5. Lumbar artificial disc replacement.
  6. Fusion of L4-L5.

What are the four stages of disc herniation?

Disc herniation is pathologically divided into 4 stages of herniated nucleus pulposus: 1) bulging, 2) protrusion, 3) extrusion, 4) sequestration. The aim of this study is to analyze the correlation between the type and severity of degenerative changes in the spine and the incidence of neurological deficits.

What is posterior central disc herniation?

A herniated disc in the spine is a condition during which a nucleus pulposus is displaced from intervertebral space. It is a common cause of back pain. The patient’s who experience pain related to a herniated disc often remember an inciting event that caused their pain.