Wednesday, 8 January 2025

The rule of nines

 The rule of nines:



is a method for quickly estimating the size of a burn by dividing the body's surface area into percentages: 


Pulaski and Tennison first discussed the Rule of Nines in 1949, and Alexander Burns Wallace published it in 1951.

Wallace was a surgeon and a leading researcher in burn classification and treatment. He was also the first editor of the British Journal of Plastic Surgery and a founding member of the British Association of Plastic Surgeons


>Head and neck: 9% for both the front and back

>Arms and hands: 9% for both the front and back

>Chest and stomach: 9% each

>Upper and lower back: 9% each

>Legs and feet: 18% for both the front and back

>Genitalia: 1%


The rule of nines is used by doctors to determine the severity of a burn by estimating the percentage of the body's surface that has full-thickness or partial-thickness burns

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