Table 13. Relation between GTOL and expected NSA.
GTOL: greater trochanter orthogonal line; NSA: neck shaft angle
| GTOL | Expected NSA (in degrees) |
| First quadrant | <122 |
| Second quadrant | >125 |
GTOL: greater trochanter orthogonal line; NSA: neck shaft angle
| GTOL | Expected NSA (in degrees) |
| First quadrant | <122 |
| Second quadrant | >125 |