Olecranon Bare Area — Where Are You?

The proximal ulna bare area is a small but decisive anatomic landmark that separates a precise olecranon osteotomy from a cartilage-damaging disaster. This cartilage-free zone, located within the ulnar trochlear notch, sits between the coronoid and olecranon ossification centers, measuring roughly 5 mm in height. Because the trochlear notch is elliptical, the bare area lies […]