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The lumbar spine is located in the lower back below the cervical and thoracic sections of the spine. It consists of five vertebrae known as L1 - L5. These lumbar vertebrae contain spinal cord tissue and nerves which control communication between the brain and the legs. Damage to the lumbar spinal cord subsequently affects the hips and groin area, and may impact the lower abdominal muscles and thigh flexion as well.  

Lumbar spinal cord damage may be complete or incomplete and may affect one or both sides of the body. As is the case with other spinal cord injuries, the completeness of the spinal cord damage will determine how severe the injury and symptoms will be for the patient.

It is also important to understand that the lumbar vertebrae are much different than the upper segments of the spine because the spinal cord does not extend the entire length of the lumbar spine. L2 is the lowest vertebral segment that contains spinal cord tissue. After that point, nerve roots exit each of the remaining lumbar levels beyond the spinal cord.

Injuries below this level (at the L3, L4, and L5 vertebrae) affect the hips and legs and may cause numbness extending to the feet (sciatica). It may also harm the tip of the spinal cord known as the caudal equina, which is a bundle of spinal nerves and nerve roots that innervate the lower lumbar spine to the sacrum.

Anatomy of the Lumbar Spine

As a fetus, vertebral segments directly relate to spinal cord segments. As an adult, the spinal column grows longer than the spinal cord and they no longer relate to one another. The spinal cord ends around the L1 or L2 vertebrae in adults, forming the conus medullairs. The horsetail shaped area, which extends past the conus medullairs, is the cauda equina. 

Injury Outlook

Injuries to the lumbar spine are severe but not life-threatening. Early treatment is important to the prognosis of lumbar spinal cord damagePatients with a lumbar spinal cord injury can be independent and care for their own mobility and hygienic needs. Many patients are able to maneuver around in their manual wheelchair and may even be able to walk for short distances. Weakness is the main issue with patients who experience lumbar nerve injuries, so physical therapy is a must in the recovery phase. 

Cauda equina syndrome (CES), which is often difficult to distinguish from the similarly-located conus medullaris syndrome, affects the lumbar spine and is considered a medical emergency. CES affects the nerves of the lumbar spine, which may cause incontinence and potentially permanent paralysis of the legs. Patient’s symptoms may come on slowly, but once it is diagnosed, it requires immediate surgery.  

*Learn more about Cauda Equina Syndrome or Conus Medullaris Syndrome.

Symptoms

Patients with lumbar spinal cord injuries may experience:

  • Paraplegia with functional independence
  • The need for a manual wheelchair for part-time or full-time use
  • Ability to ambulate using braces or other walking devices
  • Lack of control of bowels or bladder

Causes of Lumbar Spinal Cord Injuries

The most common causes spinal cord injuries at the lumbar level are:

  • Motor vehicle accidents
  • Trauma
  • Falls
  • Birth defect
  • Degeneration
  • Osteoporosis

Treatment

Current treatments available for spinal cord patients with lumbar injuries are:

  • Drugs: Non-steroidal anti-inflammatory (NSAID) drugs are used in treating spinal cord injuries. The quicker these drugs are initiated after injury, the better the result for the patient by reducing inflammation around the spinal cord.
  • Surgery: Surgical decompression of the nerves and fusion of the vertebrae are done to reduce pressure around the spinal nerves, and fixate the spinal column around the spinal cord injury.
  • Therapy: Physical therapy is done to encourage strength in the areas that are affected by spinal cord damage, as well as maintain function in the non-affected area. Occupational therapy is done to aid in patient aid the patient in learning to function after spinal cord damage.

Additional Information

Damaging the spinal cord in the lumbar region should leave the patient with full upper body strength and mobility. Although the use of a wheelchair may be necessary, these patients go on to live fairly normal lives and are able to care for most of their own needs. Lumbar spinal cord injury patients may even go on to drive modified cars.

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What Sets Swope, Rodante P.A. Apart

For more than 35 years, Swope, Rodante has worked with an emotional investment to improving the lives of thoses who have been impacted by spinal cord injuries. Leaders in the profession, the firm’s attorneys provide guidance and protection for its clients and have recovered hundreds of millions of dollars from some of the largest cases in the country. The firm’s accomplishments are driven by its clients’ successful outcomes and ensuring those who have been seriously injured receive the justice they deserve.

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