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Flashcards in Skin flaps and grafts Deck (62)
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1

What is the difference between flaps and grafts?

flaps remain attached to the patient, grafts do not

2

What is the difference between flaps and axial pattern flaps?

Flaps may rely on just the subdermal plexus
axial pattern flaps rely on a specific cutaneous artery and thus can be longer (better blood supply)

3

Why do free grafts require a recipient bed with a good blood supply to survive?

because they do not have their own blood supply (unless attached via microvascular anastomosis)

4

What are most commonly used to cover wounds of distal extremities?

free grafts

5

When are flaps and grafts used?

1. for wounds where the wound is not expected to heal in a satisfactory way by contraction and epithelialization
2. primary closure of surgically created defects that cannot otherwise be closed

6

What is another name for a subdermal plexus flaps?

random pattern flaps

7

How do you increase the change of subdermal plexus flap survival

1. the flap should be no more than twice as long as it is wide
2.

8

How do you increase the change of subdermal plexus flap survival

1. the flap should be no more than twice as long as it is wide
2. the base should be wider than the tip

9

What is a requirement for using a flap?

the skin adjacent to the wound has to be loose and mobile

10

How are flaps classified?

according to their shape and the movement of the flap

11

What are 3 types of subdermal plexus flaps?

1. rotation flaps
2. pedicle advancement flaps
3. skin fold advangement flaps

12

What are rotation flaps useful for?

good for dealing with triangular defects. Make 3x as long as base of triangle.

13

What are pedicle advancement flaps?

make incisions on a side of a defect, undermining and advancing the resultant defect
(can also do on both sides)

14

Why don't you want to cut into the base of a flap?

because it compromises blood supply

15

What are 4 types of subdermal plexus flaps?

1. rotation flaps
2. pedicle advancement flaps
3. skin fold advangement flaps
4. transposition flaps

16

Why don't you want to cut into the base of a flap?

because it compromises blood supply

17

What are transposition flaps?

flaps in which skin is lifted form one area where skin is plentiful to close the wound

18

Why do you leave dog ears with transposition flaps?

because if you cut them you could compromise blood supply

19

Why do you have to be careful not to rotate transposition flaps too much?

Because they can compromise blood supply

20

What are skin fold advancement flaps?

flaps that make use of loose skin present in the axilla and inguinal regions that can be moved into defects nearby

21

What is a filet technique?

cut off tail or toe to use skin

22

Why can you make axial pattern flaps longer than subdermal plexus flaps?

because they contain a cutaneous artery and vein (thus a known blood supply)

23

What are angiosomes?

regions that each artery supplies

24

How much can axial pattern flaps be rotated?

180 degrees

25

Why can be an issue with rotating axial pattern flaps?

the base can kink and choke of the artery and vein

26

Why don't you want to trim dog ears in a axial pattern flap?

you could trim away the artery

27

What is a bridging incision?

An incision made between the defect and the flap that is made so you can suture the graft into it

28

What are axial pattern flaps most often used for?

for closing big defects on the head, neck, trunk and proximal portion of the extremities

29

What is a thoracodorsal flap?

it is based on the thoracodorsal artery that exits caudal to the scapula. can extend over to other side or a hockey stick shape

30

What is a superficial omocervical flap?

based on the omoservical artery that emerges in front of scapula
used to r