L1 Vertebra — definition and function

The LI Vertebra

The L1 vertebra is located in the lumbar spine, which is in the lower back portion of the spinal column. Most people have five vertebrae in the lumbar spine, which connects the middle of the back to the pelvis or sacrum. The L1 vertebra is the first vertebra of the lumbar spine, causing it to experience more stress than other parts of the spine.

The lumbar region is responsible for the support and stability of most of the body’s weight. The thoracic spine, located just above the L1 vertebra, does not have much mobility. This means that the L1 vertebra experiences more weight and pressure when bending and twisting than the other vertebrae in the lumbar spine. Over time, this continual stress on the L1 vertebra can lead to the development of several spine conditions.

The lumbar spine

The lumbar spine is the bottom of the vertebral column and is responsible for supporting most of the weight of the body. Over time, with age and weight gain, the vertebrae in the lumbar spine begin to compress with increased pressure. This continual compression causes the discs and joints between the vertebrae to gradually deteriorate. The discs and joints between the vertebrae are responsible for two things: allowing the vertebrae to bend and move, and holding the vertebrae in place in the spine.

As the discs and joints deteriorate from vertebral compression, the vertebra might slip out of place, causing a condition known as spondylolisthesis. The discs could also bulge or rupture under the pressure of the vertebra, causing the surrounding nerve root in the spinal canal to be impacted. An impacted nerve in the lumbar spine could result in local pain in the lower back, as well as radiating pain in the leg and buttock on the impacted side. Some people have such severe radiating pain that they are no longer able to participate in daily activities.

Treatment for L1 conditions

There are several treatment options available for patients with L1-related spine conditions. Conservative treatment options usually help patients with mild conditions find pain relief, while more severe conditions may need surgical treatment for pain relief.

Consult your physician to evaluate your MRI or CT scan to determine the severity of your spine condition and the best course of action for your treatment. We also encourage you to reach out to our care team at Laser Spine Institute to find answers about treatment options so you can make the best decision for your spine care needs.