What is the name of the test where the therapist mobilizes the lunate up and down between their fingers?

The test where the therapist mobilizes the lunate up and down between their fingers is known as the Lunotriquetral Ballottement Test. This test is specifically designed to assess the integrity of the lunotriquetral ligament by evaluating any instability in that area of the wrist.

During the procedure, the therapist applies a gentle force to the lunate bone, moving it in an up-and-down manner between the fingers to check for any abnormal movement, which could indicate a ligamentous injury or instability. The term "ballottement" refers to the technique of tapping or applying pressure to elicit a response from the joint or structure being tested.

The Lunotriquetral Test is similar but is not as specific in its methodology as the ballottement variant. The Triquetral Dislocation Test focuses on different aspects of wrist stability, and the Wrist Joint Stability Test generally assesses overall wrist stability rather than isolating the lunate and its surrounding structures.

Understanding the specific naming of these tests is essential in clinical practice, as each serves a unique purpose in diagnosing different wrist conditions.