Execution:
- Patient is in standing or sitting position with the elbows flexed to 90° and the hands outstretched
- The examiner then applies an internal rotation force at the distal forearm and asks the patient to resist. The patient is instructed to only match the force of the examiner
- Afterwards, the examiner scratches or swipes his fingertips over the ulnar nerve at the elbow and immediately repeats step 2
Positive Outcome: Brief loss of the patient’s external rotation force is examined
|
Study |
Reliability | Sn | Sp | LR+ |
LR- |
| Cheng et al. (2008) | NA | 69 | 99 | 69 |
0.31 |
| Huyhn et al. (2018) | NA | 32 | 62 | 0.75 |
1.03 |
| Comment: The study of Cheng et al. (2008) is at high risk of bias and the test has not undergone further validation yet | |||||
