Execution:
- Patient in sitting position and the examiner positions himself behind
- The examiner stabilizes the scapula with one hand and holds the patient’s affected arm at 90° abduction and internal rotation
- Then the examiner applies a longitudinal force through the humerus at the elbow and moves the arm into horizontal adduction.
Positive Outcome: Patient experiences sudden onset of posterior shoulder pain and a click in the shoulder. A painful response is also a predictor of failure for conservative treatment
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Kim et al. (2004) | NA | 90 | 85 | 6 | 0.12 |
| Morey et al. (2018) | NA | 62.5 | 96.4 | 17.36 | 0.39 |
| Comment: The Jerk Test has moderate validity to confirm and good validity to rule out posteroinferior labral lesions. A painful Jerk Test is a predictor of failure of conservative treatment. | |||||
