epidural fibrosis
Excessive scar tissue formation in the epidural space following spinal surgery, potentially causing persistent symptoms.
Full Definition
The pathological formation of fibrous scar tissue within the epidural space, most commonly occurring after spinal surgery such as discectomy or laminectomy. This condition results from the normal healing response that becomes excessive, creating adhesions between the dura mater and surrounding tissues. Epidural fibrosis can cause recurrent radicular symptoms that may be difficult to distinguish from other causes of failed back surgery syndrome. Prevention strategies include meticulous surgical technique and the use of anti-adhesion barriers.
Usage
Usage note: Distinguished from arachnoiditis by location and imaging characteristics.
In Context
- "MRI demonstrated extensive epidural fibrosis at the previous L5-S1 discectomy site." — radiology report
- "The surgeon placed an anti-adhesion membrane to minimize the risk of epidural fibrosis formation." — operative note