Question

nursemaids elbow is a condition involving which of the following ligaments?
a) interosseous ligament
b) medial collateral ligament
c) lateral collateral ligament
d) annular ligament

Explanation:

Nursemaid's elbow, also known as radial head subluxation, occurs when the head of the radius partially dislocates from its normal position. The annular ligament, which encircles the head of the radius and holds it in place against the ulna, is involved in this condition. When a child's arm is pulled (a common cause of nursemaid's elbow), the annular ligament can be displaced.

• The interosseous ligament connects bones (like in the forearm between the radius and ulna in some areas), but it's not the key ligament in nursemaid's elbow.
• The medial collateral ligament (on the inner side of the elbow) and lateral collateral ligament (on the outer side of the elbow) are more related to stabilizing the elbow joint from side - to - side movements, not the mechanism of nursemaid's elbow.

Answer:

d) Annular ligament