A Collie’s fracture is a fracture of the osteophyte distal to the radius. The fracture occurs in the osteophyte area within two to three cm of the distal radius and is one of the most frequent fractures in the human body, accounting for 10% of all fractures, mostly in adults. Most fractures are comminuted and the articular surface can be destroyed. In children, the same violence can cause separation of the lower radius and distal radius epiphysis, mostly due to a fall on a flat surface, palm propped up on the ground, and the wrist joint in dorsal extension, i.e., internal rotation of the forearm, so that the violence is concentrated on the cancellous bone of the distal radius and causes a fracture. In this case, the distal end of the fracture must be displaced dorsally and radially, and the ulnar styloid may be fractured and the triangular cartilage may be torn.