Here’s the relevant bit of the CT scan of my wrist. As the radiologist put it, “a mildly displaced intra-articular fracture involves the palmar aspect of the triquetrum.” The orthopedist explained that sometimes when a joint receives a sharp shock, the specific speed and angle can be such that a ligament, instead of tearing and resulting in a sprain, can break off a piece of bone. Apparently this is actually preferable, as bone-to-bone healing is less complicated than ligament-to-bone healing. I’m informed that, since the other bones in my hand are still lined up just fine, I don’t need surgery. The treatment for this is exactly what it would be for a sprain: keep wearing the wrist splint I’m already wearing for up to another four weeks.