Execution
- 1Position the patient sitting with the back supported and the shoulder abducted to 90°.
- 2Support the elbow and forearm with one hand.
- 3Apply an axial compression force through the humerus into the glenoid.
- 4Elevate the arm diagonally upward while maintaining compression.
- 5Use the other hand to apply a downward and backward force to the proximal arm.
Positive outcome
Sudden posterior shoulder pain with or without a click is positive. Magee describes this as positive for a posteroinferior labral lesion.
Studies
| Study | Reliability | Sn | Sp | LR+ | LR− |
|---|---|---|---|---|---|
| Kim et al. (2005) | 0.91 | 80 | 94 | 13.3 | 0.21 |
CommentKim’s test has strong initial values for posteroinferior labral tears, but the evidence is dominated by the original study. It is best interpreted with jerk test findings and the patient’s posterior instability history. A painful click is more meaningful than vague discomfort.
High Clinical Value