Execution:
- Patient lies on the unaffected side with the upper hip flexed to 90°, maximal adduction and the upper knee flexed to 90°
- The examiner ensures both acetabulae remain vertical and applies upward and lateral pressure to the patient’s shin while passively internally rotating the hip to 45° (or as near the patient can tolerate)
Positive Outcome: Patient reports pain at the intersection of the sciatic nerve and the m. piriformis
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Fishman et al. (2002) | NA | 88 | 83 | 5.18 | 0.14 |
| Fishman et al (1992) | NA | NA | NA | NA | NA |
| Kirschner et al. (2009) | NA | NA | NA | NA | NA |
| Comment: These values have been calculated using a delay of 3 standard deviations above the normal H-reflex. The H-reflex is not an accurate gold standard | |||||
