“…These published guidelines contain different criteria that are objective or subjective, or both. The five commonly used scoring systems are the Mangled Extremity Severity Score (MESS) 1,3 ; the Limb Salvage Index (LSI) 5 ; the Predictive Salvage Index (PSI) 2 ; the Nerve Injury, Ischemia, Soft-Tissue Injury, Skeletal Injury, Shock, and Age of Patient Score (NISSSA) 4 ; and the Hannover Fracture Scale-98 (HFS-98) 6,7 . Advances in orthopaedic, plastic, and vascular reconstruction have made it possible to treat many severely injured limbs with salvage procedures.…”