1. Complete
1.1. 1.soft tissue damage
1.1.1. Simple
1.1.1.1. Intact skin
1.1.2. Compound
1.1.2.1. 1st degree
1.1.2.1.1. Skin wound from inside
1.1.2.2. 2nd degree
1.1.2.2.1. Skin wound from outside,soft tissue injury,contamination
1.1.2.3. 3rd degree
1.1.2.3.1. Skin wound from outside,bone loss,tissue damage,contamination
1.1.3. Complicated
1.1.3.1. Injury in vital organs,rupture of B.V or joint capsule
1.2. 2.location of fracture
1.2.1. Metaphyseal
1.2.2. Diaphyseal
1.2.2.1. In bone shaft
1.2.3. Physeal
1.2.3.1. Type1..fracture physis
1.2.3.2. Type2..fracture physis +distal diaphysis
1.2.3.3. Type3..fracture physis +epiphysis
1.2.3.4. Tupe4..fracture physis+epiphysis +distal diaphysis
1.2.3.5. Type5..crushing injuries of physis
1.2.4. Epiphyseal
1.3. 3.Displacement
1.3.1. Transverse
1.3.2. Longitudinal
1.3.3. Overlapped
1.3.4. Angular
1.3.5. Avulsed
1.3.6. Impacted
1.3.7. Compressed
1.3.8. Depressed
2. Incomplete
2.1. 1.Green stick:in young animal
2.2. 2.Fissure:in mature animal
2.2.1. 4.Deferred:intact periosteum,without displacement
2.3. 5.Splintered:ruptured periosteum,displacement
2.4. Star:ex. animal kick
3. According to stability
3.1. Stable
3.1.1. Transverse
3.1.2. Green stick
3.1.3. Impacted
3.2. Unstable
3.2.1. Oblique
3.2.2. Spiral
3.2.3. Multiple