Basic Plastic Surgery Flashcards
causes of impaired would healing?
arterial insufficiency venous insufficiency pressure infection diabetes nutritional radiation drugs: steroids smoking
what is the critical point for number of bacteria in wounds?
when do you do delayed closure/ secondary intention healing?
human bite wounds
pressure sores superficial or deep?
can be very deeps
what is pressure sore?
impaired blood supply of patient’s own body weight occluding vessels
best environment for wound healing?
clean
warm
moist
types of wound dressings
dry alginates hydrogels silver vaccum dressing
what are alginates? what do they do?
seaweed derivative and absorbs wound exudates
what do hydrogels do?
maintains moist wound
negative pressure wound therapy useful how?
angiogenesis
removes fluid from wound
what is a hypertrophic scar?
exaggerated normal response
STAYS within margins of original wound
what is a keloid scar?
extends beyong original wound
who gets more keloid scars? what body parts?
african
asians
any part of body
silicone and steroids use in what kinds of scars?
hypertrophic
where do you get hypertrophic scars more commonly?
central chest, back of shoulders, ears
what is a graft?
tissue transferred what relies on recipient site for nutrition
what is a flap?
tissue transferred that retains its own blood supply
advantage of full thickness skin graft?
less contractions
better aesthetics
split skin grafts need moisturizers, why?
no sweat glands
3 kinds of flaps
local
regional
free flaps
why use flap instead of graft?
not enough vascularisation
better appearance
flaps only skin?
nope. can be muscle, bone, skin
Goals of wound management
early healing
avoid infection
minimize scarring
