Surgical Resection Technique for Convexity Meningiomas

Simpson grade “I” resection, is the goal in convexity meningiomas surgery. After craniotomy, by using intraoperative ultrasound, neuronavigation and visual inspection, the junction of the dura with the tumor is defined in a circumferential direction. Dural incision is made at least in one centimeter distance from the tumor in a circumference manner around the tumor. Bipolar cautery is used to the dural attachment center after tumor encircling. This cause the cut margins to be turned outwardly and cause the arachnoid margin to be obviously visualized [1].