Table 2.
Measurements related to the lateral approach.
| Average | Range | |
|---|---|---|
| Lateral approach | ||
| Lateral surface | ||
| Length of the horizontal rami of the lateral sulcus | 15.2 mm | 10.9–21.0 mm |
| Length of the ascending rami of the lateral sulcus | 18.9 mm | 9.5–21.9 mm |
| Length of the pars triangularis | 19.8 mm | 4.8–31.8 mm |
| Length of the pars opercularis | 7.5 mm | 4.9–14.4 mm |
| Depth to the UF/IFOF complex from cortical surface | 21.8 mm | 17–26 mm |
| Depth to the midline from the UF/IFOF complex | 23.2 mm | 19–27 mm |
| Frontal lobectomy | ||
| Resection anterior to the pars triangularis | ||
| Angle | 68° | 60°–80° |
| Length | 87.6 mm | 78–95 mm |
| Resection anterior to the pars opercularis | ||
| Angle | 80.4° | 75°–85° |
| Length | 82.0 mm | 71–90 mm |