Elbow Disorders
A 32-year-old man presents after a fall onto an outstretched arm with subsequent elbow dislocation reduced in the field. Radiographs show a radial head fracture, coronoid tip fracture, and subtle widening of the ulnohumeral joint. On examination, he has a positive pivot-shift test with apprehension during supination and valgus stress. MRI confirms lateral ulnar collateral ligament (LUCL) tear. Regarding elbow instability:
Mark each as TRUE or FALSE
Elbow stability depends on osseous (trochlea-olecranon articulation, coronoid, radial head) and liga...
The "terrible triad" consists of elbow dislocation, radial head fracture, and coronoid fracture, typ...
The medial collateral ligament is the primary lateral stabilizer; the LUCL has no role in stability;...
Treatment of terrible triad involves restoration of all three stabilizers: ORIF of radial head if re...
Posterolateral rotatory instability (PLRI) presents with supination-valgus apprehension, positive pi...
Answer the questions to see explanations
Click T (True) or F (False) for each option