Execution:
- Patient is in supine lying position with the affected side close to the treatment table
- The examiner stands on the affected side and guides the patient’s knees towards the chest
- While the examiner fixates the contralateral hip in slight abduction and maximal flexion, the other leg is lowered into extension
- Then, overpressure of about 15kg is applied by the examiner onto the lowered leg for 5 seconds
Positive Outcome: Patient’s familiar pain (usually in the buttock, lower lumbar spine, posterolateral thigh and groin) is reproduced
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Laslett et al. (2005) | NA | 50-53 | 71- 77 |
1.84-2.21 | 0.65-0.66 |
| Schneider et al. (2020) | NA | 33 | 40 | 0.55 | 1.68 |
| Comment: Excluded due to its low likelihood ratio in the Cluster of Laslett (where the side with the flexed hip is tested), but used in the Cluster of van der Wurff (see below). | |||||
