Hand burns surface area: A rule of thumb

Area of Science:

• Medical assessment
• Burn management
• Surface area estimation

Background:

• Accurate estimation of acute hand burn surface area is crucial for effective patient management.
• Standardized assessment methods are needed for communication, rehabilitation, and research in burn care.

Purpose of the Study:

• To evaluate the utility of an individual's thumbprint area as a fraction of total hand surface area for rapid burn assessment.
• To establish a simple method for quantifying hand burn surface area.

Main Methods:

• Ten health professionals used their dominant thumb pulp to create thumbprints on their non-dominant hand.
• Thumbprints were applied to various hand surfaces including digits, web spaces, dorsum, and palm.
• Hand surface area was measured using the Banerjee and Sen method, and thumbprint ellipse area was calculated for correlation.

Main Results:

• The mean estimated total hand surface area was 390.0 cm².
• The mean thumbprint ellipse area was 5.5 cm², approximating 1/30th of 1% of the total body surface area.
• The study found a correlation between thumbprint number and hand surface area, suggesting a viable estimation method.

Conclusions:

• Thumbprint area provides a straightforward and practical method for evaluating hand burn surface area.
• This simple technique can enhance communication and standardization in the assessment of hand burns.