Transforaminal endoscopic excision of intradural lumbar disc herniation and dural repair: A case report.

•Transforaminal endoscopic treatment of intradural disk herniation at L2-L3 had a good outcome until the 8-month follow-up.•This technique avoids the need for dorsal durotomy to remove herniated disk materials.•The ventral defect in the dura can be sealed.•Despite a steep learning curve, this technique may negate the need for open surgery in intradural disk herniation.