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Posterolateral Disc Extrusion

A posterolateral disc extrusion refers to a herniated disc that has leaked nucleus material toward the back (posterior) and side (laterally) in the spinal canal. This is one of the most common forms of intervertebral disc disorders, particularly among people 50 or older, and is most frequently experienced in the lumbar (lower back) region of the spine. The discs serve as cushions for the vertebrae and are composed of gel-like inner material (nucleus pulposus) and a tough outer wall (annulus fibrosus). As we age, discs lose water content and elasticity, and the wall begins to weaken. Fissures can develop within the wall, allowing nucleus material to seep into the spinal canal.

Diagnosing a Posterolateral Disc Extrusion

Most herniated discs are asymptomatic. However, if you experience chronic back or neck pain, tingling or numbness in the extremities, or unexplained muscle weakness, you may be suffering from nerve compression associated with a bulging or herniated disc. Talk to your doctor about your symptoms, and be prepared for a thorough diagnostic rundown, including:

• Q&A with your doctor – questions about location, duration, and severity of pain, numbness, tingling, or weakness.
• Physical exam – tests range of motion and muscle strength.
• Neurological exam – reflex response testing to determine level of sensory or motor function.
• X-ray – routine imaging to determine cause and severity of condition.
• Additional imaging – MRI, CT scan, or myelography can be used to pinpoint the exact location of an impinged or irritated nerve root.

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Treatment for Posterolateral Disc Extrusion

More often than not, symptoms associated with a herniated disc can be managed using conservative treatment methods. These include prescription or over-the-counter pain medicine, exercise, physical therapy, stretching, behavior modification, corticosteroid injections, and other methods. However, if chronic symptoms persist after several weeks or months of conservative treatment, contact Laser Spine Institute to learn about the many benefits of our minimally invasive, outpatient procedures performed using advanced, endoscopic technology.

Please note: Laser Spine Institute currently does not perform endoscopic procedures on the thoracic spine.