Question

Which of the following ligaments are MOST LIKELY to be affected by a radial head fracture?

1) Medial collateral ligament and lateral collateral ligament
2) Annular ligament and lateral collateral ligament
3) Annular ligament and medial collateral ligament
4) Oblique ligament and annular ligament

Answer 1

The ligaments most likely affected by a radial head fracture are the annular ligament and the lateral collateral ligament due to their direct association with the radial head and lateral support of the elbow.

Step-by-step explanation:

Regarding the question, "Which of the following ligaments are MOST LIKELY to be affected by a radial head fracture?" the most relevant ligaments susceptible to injury from a radial head fracture would be those directly associated with the radial head and its articulations. The annular ligament encircles and supports the head of the radius at the proximal radioulnar joint, a pivot joint that permits forearm supination and pronation. The radial collateral ligament runs from the lateral epicondyle of the humerus to merge with the annular ligament and supports the lateral side of the elbow joint. Given the anatomical connections and the function of these ligaments, the answer to the question would be (2) Annular ligament and lateral collateral ligament.