<prompt> A patient comes with crush injury to upper limb, the doctor is concerned about gangrene and sepsis what can help decide between amputation and limb salvage?MESSGuliton scoreGustilo Anderson classificationASIA guidelines  <response>: MESS Mangled Extremity severity score:Estimates bility of an extremity after trauma, to determine the need for salvage vs empiric amputationRefer: Maheshwaris Essentials of Ohopedics, 5th edition, pg no. 392 