Does Simpson 1 Resection of Spinal Meningiomas lead to lower Tumor Relapse or Increase of CSF Leaks? A 40-years single-center experience.

Objective: To evaluate the risk of tumor relapse after Simpson grade 1 resection of spinal meningiomas compared to other Simpson grades. Furthermore, to evaluate incidence of cerebrospinal fluid (CSF) leak after resection of affected dura and use of a patch for dural repair.

Methods: We retrospectively analyzed a consecutive series of patients who underwent resection of a spinal meningioma at our department between 1980 and 2020.