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This is called the metaphyseal-diaphyseal junction. These fractures occur at the part of your fifth metatarsal close to the joint that meets the fourth metatarsal. Zone 2 fractures are also called Jones fractures. Zone 2 (Jones fracture of the 5th metatarsal) They’re sometimes called pseudo-Jones fractures. For example, if you land awkwardly after a jump or if you roll your ankle. Avulsion means “pulling or tearing away.” In an avulsion fracture, the bone is pulled off the fifth metatarsal bone by a tendon or ligament.Īvulsion fractures are often caused by an injury during an athletic activity. Zone 1 fractures, or avulsion fractures, involve the part of the fifth metatarsal that’s closest to your ankle. Zone 1 (avulsion fracture of the 5th metatarsal)

Zone 2: fractures at the metaphyseal-diaphyseal junction, or Jones fracture.This system classifies fractures into three zones: A system known as the Lawrence and Botte classification is most frequently used today. Researchers have developed a classification system to help define the different types of fifth metatarsal fractures according to their location. People who have obesity or who experience sudden extreme weight gain may also be at risk of a stress fracture in the fifth metatarsal because the excess weight puts stress on the foot. It’s the result of overuse or repetitive actions, especially when you don’t allow yourself time to heal between activities. This is called a stress or hairline fracture. Repetitive stress from activities such as running, dancing, or sports such as soccer and basketball can lead to an eventual break in the fifth metatarsal over time. suddenly changing direction while running, walking, or dancing.landing awkwardly on the foot while jumping.getting the foot crushed in a football tackle.InjuryĪ fifth metatarsal fracture can be caused by an injury. In some cases, the fracture happens more slowly over time as stress on the foot builds up from repeated use. Sometimes they’re a result of trauma or injury.

Causes of fractures of the 5th metatarsalįractures of the fifth metatarsal can happen to anyone, but they’re more common in athletes and dancers.