injuries poisoning
How To Reduce a Radial Head Subluxation (Nursemaid Elbow)
Relevant Anatomy for Nursemaid Elbow Reduction
The annular ligament wraps around the radius and attaches at both ends to the ulna and thus holds the radius in place against the ulna at the radioulnar joint. The radial head can be palpated superficially at its articulation with the lateral humeral epicondyle. Unlike the epicondyle, the radial head rotates when the wrist is pronated or supinated. 