Dislocated radial head

Q: What is the diagnosis? show answer

A: Anterior dislocation of the radial head.

Q: Is this the same as a 'pulled elbow' / 'nursemaid elbow'? show answer

A: No. A pulled elbow is a subluxation of the radial head and usually easily / spontaneously reduces.

Q: If a fracture of the ulnar was present, what would this be known as? Is this common? show answer

A: Moteggia fracture dislocation. Yes, more common than an isolated radial head fracture.

Q: What is the order of ossification of the elbow? Is this patient appropriately aged? show answer

A: The order can best be remembered using the mnemonic CRITOE: capitellum (1 year); radial head (5 years); internal (medial) epicondyle (7 years); trochlea (10 years); olecranon (10 years); external (lateral) epicondyle (11 years). Yes, this patient is appropriately developed.