intraarticular fracture intraarticular fracture an intraarticular fracture is a bone fracture in which the break crosses into the surface of a joint. this always results in damage to the cartilage. compared to extraarticular fractures, intraarticular have a higher risk for developing long-term complications, such as posttraumatic osteoarthritis. treatment considerations include restoring joint surface congruity and maintaining joint alignment and stability. example of an intraarticular fracture of the medial malliolus extending in the talocrural ankle joint.