II. Indications
- Carpal Tunnel Syndrome Evaluation
III. Background
-
Median Nerve sensory distribution image
IV. Criteria
- Score: 3.5: Numbness primarily in the Median Nerve distribution (volar thumb, index, middle, ring fingers)
- Score 4.0: Nocturnal numbness often interfering with sleep (or awakening patient from sleep)
- Score 5.0: Thenar atrophy or weakness (<=4/5)
- Score 5.0: Phalen Test Positive
- Score: 4.0: Tinel Sign Positive
- Score 4.5: Loss of 2 point discrimination (<=5 mm apart) in a Median Nerve distribution
V. Interpretation
- Total score (tallied from 6 criteria above) >=12 suggests Carpal Tunnel Syndrome