The Phalen's test is a simple physical examination used to diagnose carpal tunnel syndrome.
It helps determine if there is pressure on the median nerve, which runs through the carpal tunnel in the wrist. This pressure can cause numbness, tingling, and pain in the hand and fingers.
The test involves holding the wrists in a flexed position for a specific period of time, typically one minute. If the symptoms of carpal tunnel syndrome worsen during this time, it suggests that the median nerve is being compressed.
The Phalen's test is often performed alongside other physical examinations and diagnostic tests to confirm the diagnosis of carpal tunnel syndrome.
How is the Phalen's test performed?
- The patient sits with their arms extended in front of them.
- The patient flexes both wrists, bringing the backs of their hands together.
- The patient holds this position for 60 seconds.
- The examiner observes the patient for any signs of numbness, tingling, or pain in the hand and fingers.
Positive Phalen's test: If the patient experiences numbness, tingling, or pain in the hand and fingers during the test, it suggests a positive Phalen's test and may indicate carpal tunnel syndrome.
Negative Phalen's test: If the patient experiences no symptoms during the test, it suggests a negative Phalen's test and may indicate that carpal tunnel syndrome is unlikely.
Other tests: The Phalen's test is often used in conjunction with other tests, such as the Tinel's sign and nerve conduction studies, to confirm the diagnosis of carpal tunnel syndrome.
Remember: The Phalen's test is not a definitive diagnostic tool, but it can be helpful in identifying potential carpal tunnel syndrome. If you are experiencing symptoms, it is important to consult with a healthcare professional for proper diagnosis and treatment.
