This document discusses fracture and dislocation, including definitions and radiological evaluation. It defines a fracture as a complete disruption of bone continuity and a dislocation as a complete disruption of a joint. The radiological evaluation of fractures considers the site, type, alignment, direction, and associated abnormalities. Common fracture types include complete, incomplete, transverse, oblique, and comminuted. Alignment is assessed for displacement, angulation, rotation, distraction, and foreshortening. Potential complications of fractures are also outlined.