*Tscheme Closed Injury Classification:

0: No or only insignificant soft tissue injury; mild damage, often due to indirect mechanical injury, such as pathological fractures;

Grade I: Abrasion of the epidermis or piercing from fracture ends; mild or moderate damage, such as an unreduced spiral tibial fracture.

Grade II: Contaminated deep injury, localized skin and muscle bruising caused by direct force; may accompany compartment syndrome, commonly seen in moderate to severe direct trauma, such as a car bumper injury.

Grade III: Extensive skin lacerations, crush injuries, or muscle group destruction, with significant compartment syndrome or injury to a major artery; classified as severe damage. Bone comminution.