Anatomy
Curved bulge upper end ulna, sits, when elbow extended, in olecranon fossa at back of bottom of humerus, lending significant bony strength, stability and movement limitation (stopping hyperextension). Attachments; triceps brachii, posterior and ulnar collateral ligaments.
Clinical
Back of olecranon process covered by bursa, just subcutaneous; bursitis in trauma, infection, pressure, rheumatoid arthritis, gout.
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