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Updated: Jul 31, 2026
06:40
Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
Durkan gauge and carpal compression test: accuracy and diagnostic test properties
R S Wainner1, M L Boninger, G Balu
1Wilford Hall, USAF Medical Center, Lackland AFB, Texas, USA. rwainner@msn.com
The Journal of Orthopaedic and Sports Physical Therapy
|December 5, 2000
Summary
The Durkan CTS gauge accurately measures pressure, but the carpal compression test (CCT) using this gauge is not a reliable diagnostic tool for carpal tunnel syndrome (CTS). Further research is needed for accurate CTS diagnosis.
Area of Science:
- Orthopedics
- Neurology
- Diagnostic Medicine
Background:
- The carpal compression test (CCT) is a diagnostic method for carpal tunnel syndrome (CTS).
- Previous studies suggest high sensitivity and specificity for CCT using thumb pressure.
- The diagnostic accuracy of the Durkan CTS gauge has not been independently validated.
Purpose of the Study:
- To evaluate the diagnostic performance of the CCT with the Durkan CTS gauge.
- To determine the measurement validity of the Durkan CTS gauge for assessing carpal tunnel pressure.
Main Methods:
- A prospective validity study was conducted.
- The Durkan CTS gauge's accuracy was verified using a force dynamometer.
- Nerve conduction studies (NCS) and CCT were performed on 52 participants (33 women, 19 men).
- CTS diagnosis was confirmed by compatible history and NCS results.
Main Results:
- The Durkan CTS gauge demonstrated accurate pressure readings.
- The CCT, when performed with the Durkan gauge, showed low sensitivity (.36) and specificity (.57) for CTS diagnosis.
Conclusions:
- The Durkan CTS gauge provides accurate pressure measurements.
- The CCT, utilizing the Durkan gauge, is not a sensitive or specific diagnostic test for carpal tunnel syndrome.
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