Diagnosing Carpal Tunnel Syndrome (CTS)
Carpal tunnel syndrome (CTS) is a condition where the median nerve in the wrist and hand is compressed or squeezed. To diagnose CTS, doctors use a combination of examinations, screening tests, and procedures. These help confirm the diagnosis and determine the type, severity, or stage of the condition. Specialists involved in diagnosing CTS may include primary care physicians, orthopedic surgeons, neurologists, or physical therapists.
Here are the examinations, screening tests, and procedures used to diagnose CTS and determine its type, severity, or stage:
- Physical Examination: During a physical exam, your doctor will assess your symptoms and look for specific signs associated with CTS. They will check for decreased feeling in your fingers, muscle weakness in your hand, signs of wasting in your thumb muscles, and signs of arthritis in your wrists.
- Nerve Conduction: These tests measure how well electrical impulses are conducted through the median nerve in your affected hand. By comparing the results to normal values, doctors can determine if there is nerve damage or compression.
- Tinel's Test: The Tinel's test is a simple examination where your doctor taps over the median nerve at the wrist. If you experience pain, numbness, or tingling during this test, it suggests that the median nerve in the carpal tunnel may be compressed.
- Phalen's Maneuver: In Phalen's maneuver, your doctor flexes your wrist for 30 to 60 seconds. If you develop pain, numbness, or tingling during this maneuver, it indicates compression of the median nerve.
- Ultrasound or MRI Imaging: In some cases where the diagnosis remains uncertain, ultrasound or MRI imaging may be helpful. These imaging techniques can provide additional information about the location and severity of nerve compression.
- Blood Tests: Your doctor may order blood tests to look for evidence of underlying conditions that can trigger CTS, such as diabetes or thyroid disease.
- Additional Tests: Depending on the specific circumstances and individual patient factors, additional tests like electromyography (EMG) may be used to assess muscle activity and help determine the severity of nerve damage.
These examinations and tests help doctors diagnose CTS by evaluating symptoms, assessing nerve function and compression levels, ruling out other possible causes of symptoms, and identifying factors that contribute to the type and severity of CTS.
Remember to consult with a healthcare professional for an accurate diagnosis and appropriate treatment options tailored to your specific needs.