Understanding Epidural Fibrosis After any surgery, the body forms scar tissue as part of normal healing. In spine surgery, this scar tissue (epidural fibrosis) can form around the nerves in the spinal canal. While some scarring is inevitable, excessive or strategically located scar tissue can cause problems. Epidural fibrosis occurs in 20-36% of patients after lumbar surgery. Having scar tissue does not guarantee symptoms, but when symptoms occur, they result from the scar tissue interfering with normal nerve function and mobility. Understanding this process helps explain why some patients have persistent symptoms after technically successful surgery and why gentle movement is important during recovery. How Scar Tissue Causes Pain Nerve tethering: Scar tissue can attach to nerve roots, preventing them from sliding normally during movement. Tension with movement: When tethered nerves cannot move, body movement creates tension and stretching of the nerve. Mechanical compression: Dense scar tissue can physically compress nerves. Blood supply compromise: Scar tissue can interfere with blood flow to nerves. Sensitization: Repeated irritation can sensitize nerves, making them more reactive to normal stimuli. Exercises to Maintain Nerve Mobility Gentle movement helps prevent nerve tethering and maintains mobility. JME 100 Perform 6-8 controlled repetitions. Spinal mobility helps prevent scar tissue restrictions. JME 153 Complete 6-8 smooth repetitions each side. Hip movement affects nerve tension through the pelvis. JME 101 Perform 6-8 gentle repetitions. Back movement maintains tissue mobility. JME 154 Complete 6-8 controlled repetitions each side. Hip work helps maintain lower limb nerve mobility. Start your free trial to access post-surgical mobility routines. Risk Factors for Problematic Scarring Certain factors increase risk of symptomatic epidural fibrosis: Extent of surgery: More extensive procedures create more tissue disruption and potential for scarring. Repeat surgeries: Each additional surgery increases scar tissue formation. Dural tears: Tears in the protective membrane around nerves increase scarring. Bleeding: More intraoperative bleeding correlates with more scarring. Post-operative immobility: Prolonged rest may allow adhesions to form. Individual variation: Some people form more scar tissue than others. Additional Mobility Exercises JME 102 Perform 6-8 slow repetitions. Varied spinal movements maintain tissue mobility. JME 155 Complete 6-8 smooth repetitions. Hip mobility affects overall lower body nerve tension. JME 103 Perform 8-10 gentle repetitions. Back work supports tissue health. JME 156 Complete 6-8 controlled repetitions. Multi-directional work prevents adhesion formation. Management Strategies Once symptomatic scar tissue has formed, treatment options include: Physical therapy: Nerve gliding exercises and mobility work can help improve function. Injections: Epidural steroids may reduce inflammation around scarred nerves. Adhesiolysis: Procedures to break up scar tissue, though with variable success. Revision surgery: Removing scar tissue, though this often creates more scarring. Pain management: When structural solutions are limited, focus shifts to managing symptoms. Programming Considerations Early appropriate movement after surgery may reduce adhesion formation. Maintain nerve mobility through regular, gentle movement. Progress gradually within comfort limits. Join simplmobility for post-surgical mobility programming. Common Mistakes Complete immobility: Not moving at all after surgery may promote adhesion formation. Aggressive stretching: Forcing through pain can worsen nerve irritation. Repeated surgeries: Each surgery adds more scar tissue. Ignoring symptoms: Early intervention may prevent progression. Progression Strategies Follow post-operative movement guidelines from your surgical team. Gradually increase range as healing allows. Consistent gentle movement is better than occasional aggressive movement. References Ross, J. S., Robertson, J. T., Frederickson, R. C., Petrie, J. L., Obuchowski, N., Modic, M. T., & deTribolet, N. (1996). Association between peridural scar and recurrent radicular pain after lumbar discectomy: magnetic resonance evaluation. Neurosurgery, 38(4), 855-861. https://pubmed.ncbi.nlm.nih.gov/8692415/ Fritsch, E. W., Heisel, J., & Rupp, S. (1996). The failed back surgery syndrome: reasons, intraoperative findings, and long-term results: a report of 182 operative treatments. Spine, 21(5), 626-633. https://pubmed.ncbi.nlm.nih.gov/8852320/ Frequently Asked Questions Can scar tissue be removed? Scar tissue can be surgically removed or broken up with procedures like adhesiolysis. However, these procedures often create new scar tissue, leading to a cycle of surgery and scarring. Conservative management is usually preferred. How do I know if scar tissue is causing my pain? MRI with contrast (gadolinium) can show epidural fibrosis, but having scar tissue does not prove it is the pain source. Clinical correlation is essential. Pain that worsens with movement and improves with rest, plus appropriate imaging, suggests scar tissue involvement. Can I prevent scar tissue formation? Some scar tissue formation is inevitable after surgery. Surgeons may use barrier gels or membranes to reduce formation. Early appropriate movement may help prevent adhesions. Minimizing the extent of surgery when possible also helps. Will my scar tissue symptoms improve over time? Some people experience gradual improvement as scar tissue matures and becomes less inflammatory. Consistent gentle movement helps maintain whatever mobility is possible. Complete resolution of symptoms is not guaranteed, but many people find manageable stability.