This document discusses fracture classification and management. It defines a fracture and describes how fractures are classified based on factors like whether they are open or closed, the degree of displacement, location, and number of fragments. The major classifications are closed fractures, open fractures, and physeal fractures. Closed fractures do not break the skin, while open fractures do. Fractures are also classified as reducible or non-reducible based on the number of fragments. The document outlines different types of closed fractures and discusses fracture reduction and management strategies.