Fig. 3From: Comparison of bone reamer and trephine for foraminoplasty in percutaneous endoscopic lumbar discectomy based on 3D slicer and Digimizer softwarea: Schematic diagram of the boundary and area measurement of the FPZ; b: Schematic diagram of the division of the SAP into three parts; c: Area measurement method of the FPZ after the tip of the SAP was resected; d: Area measurement method of the FPZ after the ventral side of the SAP was resected; e: Area measurement method of the FPZ after the base of the SAP was resected; f–h: Area measurement method of the FPZ after multiple parts were resectedBack to article page