Yuxtaarticular: The prefix " 34 juxtaposition; it comes from the Latin preposition meaning close, close, close. Yuxtaarticular is composed of juxta, near articulate, from the latin " articulus " = near a joint. A fracture is a break near a joint yuxtaarticular, the infection is an infection of yuxtaarticular near a joint, and so sucesivame.Extraarticular means outside the joint, i.e. outside of the capsule to articulate, as really are almost synonyms, and there are hundreds of such pathologies.