Unilateral biportal endoscopic surgery for intradural lumbar disc herniation: illustrative case

Using UBE technology to treat lumbar disc herniation, if an abnormal bulge or white, mass-like protrusion is observed on the nerve root under endoscopic visualization, clinicians should highly suspect the presence of type B IDH. In such cases, the nerve root sheath can be incised along the direction of the nerve root to safely remove the herniated disc material. Notably, repair of the nerve root sheath is not required, and no CSF leakage occurred in this case. https://thejns.org/doi/10.3171/CASE25795.