<prompt> Tibial fracture with 1 cm wound, slight conjunction and moderate crushing is -Grade IGrade IIGrade III AGrade III B  <response>: Compound fractureCompound fracture also called open fracture, in which fracture communicates with the external environment, i.e., overlying soft tissue coverage skin and muscles is breached.Open fractures are typically caused by high energy injuries such as car crashes, falls, or sports injuries.Gustila and Anderson classified open fracture into following types. 