Does Putting Back Hyperostotic Bone Flap in Meningioma Surgery Cause Tumor Recurrence? An Observational Prospective Study.

Background: Replacing the skull defect with synthetic materials for hyperostotic bone secondary to meningioma is recommended owing to the possibility of tumor invasion. In our institution, neurosurgeons have been putting back the refashioned hyperostotic bone flap after meningioma excision because of budget constraints. The aim of this study was to review the long-term meningioma recurrence rate in these patients.