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What Is Failed Back Surgery Syndrome?

Failed Back Surgery Syndrome (FBSS) refers to persistent or recurring pain following spinal surgery. Despite technically successful procedures, some patients continue to experience discomfort due to unresolved issues or new complications. The pain may affect the back, neck, or radiate into the arms or legs, impacting daily function and quality of life.

What Are the Causes of Failed Back Surgery Syndrome?

FBSS can occur for several reasons related to the original condition, surgery, or healing process. Common causes include:

  • Incomplete Decompression: Nerves may still be compressed after surgery
  • Scar Tissue Formation (Epidural Fibrosis): Can irritate surrounding nerves
  • Recurrent Disc Herniation: The disc may re-herniate over time
  • Spinal Instability: Changes in spine mechanics after surgery
  • Nerve Damage: Occurring during or after the procedure
  • Incorrect Diagnosis: The original source of pain may not have been fully identified

A thorough evaluation is essential to determine the exact cause.

What Are the Symptoms of Failed Back Surgery Syndrome?

Symptoms can vary but often resemble or persist from pre-surgical pain. Common symptoms include:

  • Chronic back or neck pain
  • Radiating pain into the arms or legs (sciatica)
  • Numbness or tingling sensations
  • Muscle weaknessLimited mobility or stiffness
  • Limited mobility or stiffness
  • Persistent pain despite prior surgery

Symptoms may be continuous or fluctuate in intensity.

How Is Failed Back Surgery Syndrome Diagnosed?

Diagnosis begins with a detailed review of the patient’s surgical history and current symptoms. A physical examination evaluates nerve function, strength, and mobility. Imaging studies such as MRI or CT scans are often used to identify structural issues, scar tissue, or recurrent disc problems. Additional diagnostic injections may help pinpoint the exact source of pain.

What Are the Treatment Options for Failed Back Surgery Syndrome?

Treatment focuses on relieving pain and improving function. Options may include medications, physical therapy, and lifestyle modifications. Interventional procedures such as epidural steroid injections, nerve blocks, or radiofrequency ablation may be recommended. In some cases, advanced therapies like spinal cord stimulation can help manage chronic pain when other treatments are not effective.

  • the-university-of-chicago
  • ABA Theamerican Board of Anesthesiology
  • ASPN American Society of Pain Neuroscience
  • American Society of Interventional Pain Physicians