Preoperative radiographic clues for transdural disc herniation: could it be predictable?

Background Transdural disc herniation (TDH) is a rare event accounting for 0.3–1.5% of all disc herniation cases. Considering the risk of leakage of the cerebrospinal fluid from the dural defect after removal of TDH or incomplete removal, it is very important to recognize TDH before surgery. This study is a retrospective case analysis to analyze the imaging findings of seven cases and to construct a preoperative prediction model for TDH.