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Hand & Upper Limb
intermediate
X-Type

Elbow Instability

Elbow Conditions

A 35-year-old woman presents after falling onto an outstretched hand. Radiographs show a posterior elbow dislocation with a radial head fracture and coronoid fracture. After closed reduction, the elbow remains unstable in extension. Regarding elbow instability:

Mark each as TRUE or FALSE

A

The "terrible triad" of the elbow consists of posterior elbow dislocation, radial head fracture, and...

B

The lateral ulnar collateral ligament (LUCL) is the primary constraint to posterolateral rotatory in...

C

The radial head is not an important stabilizer of the elbow and can be excised without consequence; ...

D

The coronoid process is a critical stabilizer of the elbow; the anterior bundle of the MCL attaches ...

E

The radial head acts as a secondary valgus stabilizer when the MCL is deficient; radial head excisio...

Answer the questions to see explanations

Click T (True) or F (False) for each option