Named so because of the increased incidence in athletes playing on artificial turf. This type of injury is a strain or tear of the ligaments that make up the complex with your sesamoids at the big toe joint.
Sesamoids are at risk of fracture as is any other bone in your body. High impacts or increased pressures can cause the bone to crack or, in the instance of a stress fracture, become bruised.
This is the inflammation injury. You cannot usually relate this injury to any specific incidence, but rather has slowly become worse with time. As with plantar fasciitis, the can easily become a chronic condition before seeking out treatment.