TERMINOLOGY (SYNONYMS)

• Chronic adhesive arachnoiditis
• Adhesive arachnoiditis
• Arachnoid ossificans (calcification)
• Post-inflammatory adhesions
• Post-inflammatory clumping of nerve roots

INTRODUCTION

Arachnoiditis refers to inflammation of the arachnoid membranes which surround the spinal cord and the spinal nerve roots. It is often associated with the formation of adhesion (scar tissue). This most often occurs in the low back (lumbar spine).

PREVALENCE

Uncommon