The<unk>  system is the most commonly used classification system for<unk><unk> s. It was created by Ramón<unk>  and Anderson, and then further expanded by<unk> , Mendoza, and Williams. This system uses the amount of energy, the extent of soft-tissue injury and the extent of contamination for determination of<unk>  severity. Progression from grade 1 to 3C implies a higher degree of energy involved in the injury, higher soft tissue and bone damage and higher potential for complications. It is important to recognize that a<unk>  score of grade 3C implies vascular injury as well as bone and connective-tissue damage.
Gustilo open fracture classification
Müller AO Classification of fractures
Classification of distal radius fractures
Hip prosthesis zones
Rockall score
Ottawa knee rules
Ottawa ankle rules
Baux score