L1 - L5 nerve roots

The lumbar (lower back) nerve roots, known medically as the L1-L5 nerve roots, refer to the sites where nerves exit the spinal cord and branch throughout the lower back and the rest of the lower body.

These nerve pathways send signals between the lower torso, legs and feet all the way up to the brain and back again, with unbelievable speed. However, these nerve roots are particularly susceptible to compression due to the flexibility and weight burden of the lower back.


Spine conditions that affect the L1-L5 nerve roots

In many ways, the lumbar spine is unlike any other segment of the spine. Problems in the lower back are far more common than any other area of the spine because of the nature of the lumbar spine. The lumbar spine is responsible for supporting most of our body weight and allowing for flexibility and movement in the lower back and torso.

This wide range of function and motion commonly leads to the compression of the L1-L5 nerve roots. This is because the spinal discs degenerate, joints break down, osteoarthritis creeps in and spinal canals narrow. These conditions are all common causes of nerve root pinching and pain in the spine.

The most common lumbar conditions that cause nerve compression include:

  • Herniated disc
  • Bulging disc
  • Spinal stenosis
  • Arthritis of the spine (osteoarthritis)
  • Degenerative scoliosis
  • Spondylolisthesis
  • Bone spurs

Each of these conditions causes the pathways for nerve roots to narrow and can quickly lead to nerve compression.


Nerve compression in the L1-L5 nerve roots

Because nerve compression in the lumbar spine is more common than in other areas of the spine, it’s important to recognize the symptoms so you can be proactive about your treatment. The common symptoms of compressed lumbar nerve roots include:

  • Chronic lower back pain at the site of the compression
  • Pain that radiates along a nerve
  • Muscle weakness in the thighs, knees and calves
  • Numbness and tingling in the legs, feet and toes
  • Other forms of sciatica
  • Incontinence or loss of bladder control in emergency cases, which requires immediate medical treatment

Treatment options

Management of most of these symptoms can usually be handled conservatively with a combination of doctor-recommended treatments, such as anti-inflammatory medications, exercise, strength training and similar options.

However, in some instances, the symptoms do not respond to conservative treatment, and lower back surgery becomes an option. If this is your situation, contact Laser Spine Institute to learn about our minimally invasive alternative to traditional open back surgery. Our minimally invasive spine surgery has helped more than 60,000 patients find relief from chronic neck and back pain, and we are here to help guide you on your journey to find lasting relief.

Contact us today for a no-cost MRI review* to find out if you are a candidate for one of our minimally invasive outpatient procedures.