Re: Help with Stiff ankle problems...
Okay, OCD is osteochondral defect. What that means is, the talus was injured, maybe that bone chip that the original x-ray found, and now there's a hole, or an area of dead or soft bone. It can sometimes be repaired through surgery, either drilling holes in it to stimulate new growth, or putting in a plug of bone taken from a donor or a large bone on another part of your body.
See what the MRI shows and how big it is.