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Calculator: Mangled Extremity Severity Score (MESS) in adults


Calculator: Mangled Extremity Severity Score (MESS) in adults

 
Patient age

Less than 30 years old (0 points)

30 to 50 years old (1 point)

More than 50 years old (2 points)
Extremity injury type

Low-energy wounds such as stab, civilian gunshot, or simple fracture (1 point)

Medium-energy wounds such as dislocations; multiple or open fractures (2 points)

High-energy wounds such as crush, close-range shotgun, or military gunshot wound (3 points)

Very high-energy wounds such as above, but with gross contamination or soft tissue avulsion (4 points)
Ischemia of wounded limb

Reduced pulse but normal perfusion for less than 6 hours (1 point)

Reduced pulse but normal perfusion for more than 6 hours (2 points)

No pulse with poor capillary refill and parasthesias for less than 6 hours (2 points)

No pulse with poor capillary refill and parasthesias for more than 6 hours (4 points)

Cool, numb extremity for less than 6 hours (3 points)

Cool, numb extremity for more than 6 hours (6 points)
Hypotension and shock

Systolic BP greater than 90 mmHg (0 points)

Transient hypotension (1 point)

Persistent hypotension (2 points)

 
Important: Inputs must be complete to perform calculation.

 
Total criteria point count:
 

 

MESS interpretation

 
7 to 14 points: Amputation will likely be required
0 to 6 points: Limb will likely be salvaged

 

 
Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer.

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Topic 16746 Version 6.0