Eversion sprains are less common due to which factors?

Eversion sprains are less common due to which factors?

• A. Strength of the deltoid ligament and fibula providing a bony block
• B. Weakness of the lateral ligaments
• C. Short Achilles tendon
• D. High arches

Answer: (D)

Eversion sprains happen when the sole of the foot rolls outward, stressing the medial structures of the ankle. They’re less common because the medial side is already well supported by the strong deltoid ligament and the medial malleolus forming a bony block that resists inward roll. When the arch is high, the foot is more rigid and less prone to flattening and excessive pronation during weight bearing, so the hindfoot doesn’t eversion as easily. That increased rigidity provides extra stability, reducing the likelihood of injuring the medial ligaments under typical eversion stress. The other factors don’t fit as well: a weak lateral ligament would tend to cause inversion injuries, a short Achilles tendon affects calf mechanics rather than eversion, and arch height is the specific factor that lowers eversion sprain risk in this context.

Eversion sprains happen when the sole of the foot rolls outward, stressing the medial structures of the ankle. They’re less common because the medial side is already well supported by the strong deltoid ligament and the medial malleolus forming a bony block that resists inward roll. When the arch is high, the foot is more rigid and less prone to flattening and excessive pronation during weight bearing, so the hindfoot doesn’t eversion as easily. That increased rigidity provides extra stability, reducing the likelihood of injuring the medial ligaments under typical eversion stress. The other factors don’t fit as well: a weak lateral ligament would tend to cause inversion injuries, a short Achilles tendon affects calf mechanics rather than eversion, and arch height is the specific factor that lowers eversion sprain risk in this context.