An avulsion fracture at the base of the fifth metatarsal is commonly called which fracture?

• A. Bennett fracture
• B. Boxer's fracture
• C. Jones fracture
• D. Lisfranc fracture

Answer: (C)

This question tests recognizing fracture names by location. The injury described involves the base of the fifth metatarsal and is most commonly called a Jones fracture. Jones fractures occur in the proximal part of the fifth metatarsal near the metaphyseal–diaphyseal region and are classically associated with inversion injuries or repetitive stress in athletes. They are distinct from other well-known fractures listed: a Bennet fracture is at the base of the first metacarpal (thumb), a Boxer's fracture is a fracture of the fifth metacarpal neck (hand), and a Lisfranc fracture involves the midfoot joints. So, the fifth metatarsal base injury described aligns with a Jones fracture.