- n number of dogs; the most common finding in each age category is marked in green. CED canine elbow dysplasia; INC R-U radio-ulnar incongruence; INC H-U humero-ulnar incongruence; FMCP medial coronoid disease with fragmented medial coronoid process; OCD osteochondrosis dissecans within the medial compartment of humeral condyle coronoid process; MCD medial coronoid disease without fragmented medial coronoid process (pathological cartilage and or subchondral bone); UAP ununited anconeal process