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Biomechanics & Surgery Exam 3 > Nail Surgery > Flashcards

Flashcards in Nail Surgery Deck (27):
1

where is the nail matrix found?

extends over the base of the distal phalanx to the distal edge of the lunula

2

where is the nail bed found?

distal to the lunula

3

which part of the nail contributes to formation of the nail?

nail matrix, NOT the nail plate

4

the extension of the eponychium is called what?

cuticle

5

80% of the nail is produced by which part of the matrix?

proximal half of the matrix

6

what gives the convex appearance of the nail?

since nail activity is so much higher in the proximal portion, the nail is naturally curved in a convex shape from proximal to distal

7

what is the DuVries method for treating ingrown toe nails?

removing a large section of skin from the side of the toe to relieve soft tissue pressure on the side of the ingrown toenail

8

in a partial and total nail avulsion, is the nail matrix left intact or not?

matrix is left intact

9

what are the ways to perform partial matrixectomies?

1. phenol & alcohol
2. NaOH and acetic acid
3. winograd
4. Frost
5. other matrix ablation techniques

10

which are the ways to perform total matrixectomies?

1. phenol & alcohol (P&A)
2. NaOH
3. Zadik (Quenu)
4. Whitney
5. Kaplan
6. Mini-kaplan
7. terminal Syme

11

which are the ways to perform partial matrixectomies, NOT total matrixectomies?

Winograd & Frost

12

how does NaOH and acetic-acid help with ingrown toe nails?

same as P&A , NaOH helps destroy matrix and is neutralized by 5% acetic acid

13

what is the post-op care for P&A?

-apply dressing w/ silvadene
-keep dry and intact until next morning
-soak in warm water
-air dry
-avoid enclosed shoes for 1 week

14

describe the winograd procedure.

-wedge of skin and nail plate removed down thru matrix to bone with scalpel

15

when would you need to use the winograd procedure?

for patients with chronic ingrown toenail or with hypertrophied nail border

16

Describe the Frost procedure.

"L" shaped - one longitudinal incision thru nail plate extending from tip to skin proximal to nail plate; second incision at right angle to first extending away from nail plate at base of first incision

17

Describe the Zadik (Quenu) procedure.

H-shaped incision made with conecting incision placed proximal to eponychium

18

Which is the L-shaped incision?

Frost

19

What is the H-shpaed incision?

Zadik (Quenu)

20

which is the Whitney technique?

acisional technique that removes nail plate

21

What is the Kaplan technique?

cuts the nail bed right of the bone as well as huge sections of tissue on the side...may as well as amputate the toe

22

what is the terminal syme procedure?

removal of nail plate and matrix down to bone with circumferential incision around nail plate

23

how long should your applications of P&A be?

for partial matrixectomies- do 3 30-second applications

for total - do three 45-sec apps

24

Name 3 procedures that involve rasping bone.

Frost
Winograd
Mini-Kaplan

25

in P&A procedure, which acts as the "rinse"? which destroys the nail matrix?

phenol- destroys matrix
alcohol - acts as the rinse

26

in NaOH and acetic acid, which acts as the "rinse"? which destroys the matrix?

NaOH- destroys matrix
acetic acid- is the rinse

27

Which is the acisional procedure for removing matrix?

Whitney technique