The anatomy of the skin, depth of burns

and Jackson burn wound model

JAHD PresentationPerry Crofts

The skinThe largest organ in the body

Consists of the epidermis and dermis

Epidermis is the outer layer of stratified squamous epithelium. It is avascular and varies in thickness

The dermis is a dense bed of vascular connective tissue

Functions as a physical barrier and a sensory and thermoregulatory organ

The skin

Superficial erythema Only the epidermis

involved

Red

Painful

Technically not a burn

Not included in total body surface area calculations

Deep & superficial partial thickness

Superficial partial thickness Red with clear blisters

Deep partial thickness Red and white with

bloody blisters

Full thickness and Fourth degree burns

Full thickness burns Extend through entire

dermis (full thickness) Stiff, white and brown Painless

Fourth Degree burns Extends through entire skin

and into underlying tissue Black and charred Painless

Jackson burn wound model

Considers the effect of secondary injury on burns

Zone of coagulation is central, this tissue is most severely damaged and lost

Outside is the zone of stasis which can potentially recover

Most periphery is the zone of hyperaemia