A positive Finkelstein's test indicates the likely presence of de Quervain's tenosynovitis. This is a condition causing pain on the thumb side of your wrist. The test is positive when the patient experiences pain in a specific area of the wrist during the test procedure.
Understanding the Finkelstein's Test
The Finkelstein's test is a quick physical examination used to diagnose de Quervain's tenosynovitis. It involves the following steps:
- The patient maximally flexes their thumb, wrapping their fingers over it to make a fist.
- The patient then ulnarly deviates (bends) their wrist. This action stretches the tendons in the first extensor compartment of the wrist.
A positive result is indicated by:
- Pain over the first extensor compartment of the wrist. This is the most commonly cited indicator. The pain is felt at the base of the thumb, near the radial styloid process (the bony prominence on the thumb side of the wrist).
- Pain aggravation at the tip of the styloid process. Some sources emphasize pain at this specific point as a positive sign.
The intensity of the pain isn't necessarily a factor in determining a positive test. Even mild pain during the maneuver is considered a positive result, suggesting the possibility of de Quervain's tenosynovitis.
Important Considerations
While a positive Finkelstein's test strongly suggests de Quervain's tenosynovitis, it's crucial to note that:
- False positives can occur. Pain might be experienced due to other wrist conditions, leading to an incorrect diagnosis.
- The test is not definitive. Further investigations might be necessary to confirm the diagnosis.
The Finkelstein test is a valuable diagnostic tool but should be used in conjunction with other clinical assessments and patient history. A physician's diagnosis is essential for appropriate treatment.
