Shoulder and elbow

Question 1

Terrible triad elbow injury

Answer 1

coronoid tip fracture
radial head fracture
posterolateral ulnohumeral dislocation

Question 2

Cubitus varus may occur following

Answer 2

Malunion of supracondylar humerus fractures

Primarily a cosmetic deformity without functional limitations

Question 3

Little league elbow represents a spectrum of injuries that occur to the medial elbow in young-adolescent throwers including

Answer 3

• stress fracture of the medial epicondyle
• injury to the flexor -pronator mass
• ulnar collateral ligament injuries

Question 4

most commonly affected nerve in extension-type supracondylar humerus fracture

Answer 4

AIN

It supplies the FPL (thumb IP flexion), the pronator quadratus, and the FDP of the index/long fingers. Subsequently, patients are often unable to make an “a-ok” sign.

Most of these neuropraxias resolve without complication