How to Test for Vibration Sense?

Testing vibration sense typically involves using a tuning fork placed on bony prominences.

Method Using a 128-Cycle Tuning Fork

One specific method for testing vibration sense, as described, utilizes a 128-cycle tuning fork. This method focuses on evaluating the patient's ability to perceive vibration through a joint, comparing it to the examiner's own perception.

Procedure Steps

Here are the steps involved in this particular test:

1. The examiner prepares a lightly tapped 128-cycle tuning fork to create vibration.
2. The examiner places a finger under the patient's distal interphalangeal joint (DIP joint).
3. The vibrating tuning fork is then pressed on top of the joint.
4. The patient is instructed to indicate when they feel the vibration stop.

Interpreting the Result

For a typical response, the patient should note the end of vibration about the same time as the examiner. The examiner feels the vibration fading through the patient's joint via their supporting finger. If the patient perceives the vibration for a significantly shorter duration than the examiner, it may indicate impaired vibration sense.