ToolsCalculators
Carpal Tunnel Syndrome-6 (CTS-6)
Clinical probability of carpal tunnel syndrome from six history and exam findings.
Carpal Tunnel Syndrome-6 (CTS-6)
Numbness predominantly or entirely in the median nerve territory
Nocturnal numbness
Thenar atrophy and/or weakness
Positive Tinel sign
Positive Phalen sign
Loss of two-point discrimination
Result0.0 points
Score below 12 corresponds to a lower probability of carpal tunnel syndrome; correlate clinically and consider electrodiagnostic testing.
- Total score
- 0.0 / 26
When to use
- Estimating the clinical likelihood of carpal tunnel syndrome without relying solely on nerve conduction studies.
Formula
Weighted points: median-territory numbness 3.5, nocturnal numbness 4, thenar atrophy/weakness 5, Tinel 4, Phalen 5, loss of two-point discrimination 4.5. Range 0-26; >=12 indicates high probability.
Pearls and pitfalls
- Designed so a clinical diagnosis can be reached without electrodiagnostic confirmation in many patients.