| SN | Sciatic nerve |
| SG | Superior gemellus |
| BA | Beaton and Anson |
| GT | Greater trochanter |
| IT | Ischial tuberosity |
| PIRL | Posterior intercondylar reference line |
| SD | Standard deviation |
| IQR | Interquartile range |
| ASIS–LFC | Anterior superior iliac spine–lateral femoral condyle |
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