Table 2.

Open fracture injury scores.

Score	Unabbreviated	Main Indices for Scoring	Predictive Outcome [26]
MESI	Mangled Extremity Syndrome Index [27]	Injury Severity Score (ISS) Tegmentum Injury Vascular Injury Fracture Type Bone Loss Wait Time Age Pre-existent Disease	>20 = amputation
MESS	Mangled Extremity Severity Score [28]	Type injury Limb ischemia Presence of shock Age Score is doubled for Ischaemia > 6 hours	>7 amputation [29]
PSI	Predictive Salvage Index [30]	Level of arterial injury Degree of bone injury Degree of muscle injury Interval from injury until arrival in operation room	>8 amputation
LSI	Limb Salvage Index [31]	Artery injury Nerve Injury Bone Injury Skin Injury Muscle Injury Deep Vein Injury Warm Ischaemia Time	>6 likely amputation
NISSSA	See Indices [initialled] [32]	Nerve injury Ischemia Soft tissue contamination Skeletal injury Shock Age	<7 salvage and > 11 amputate