It is quite difficult, as a patient, to get a ton of information about the TFCC. The internet is full of conflicting information with very little consistency, and non-specific information. If you are like most, you have already visited your physician and are searching for more information.
Why does ulnar compression hurt with TFCC tears or DRUJJ instability?
You phone the specialists and you have to wait 3-4 weeks for a hand consult. Why don't you simply perform the Weight Bearing Test? I found it incredibly accurate in assessing the wrist. This simple tool is available in every country. It is cheap. It is reliable. The test does not require a prescription or insurance to perform. It will diagnose TFCC tears.