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Surgery Lab > Suture Materials and Needles > Flashcards

Suture Materials and Needles Flashcards

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1
Q

What are 4 qualities of Chromic gut?

A

Absorbable
Multifilament
Organic
Knot security decreases when wet

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2
Q

How are the filaments organized in Chromic gut?

A

Twisted

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3
Q

What are 3 qualities of Polyglactin 910?

A

Absorbable
Multifilament
Synthetic

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4
Q

What is Polyglactin 910 commonly used for?

A

Dental surgery

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5
Q

How are the filaments organized in Polyglactin 910?

A

Braided

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6
Q

What are 3 qualities of Polyglycolic acid?

A

Absorbable
Multifilament
Synthetic

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7
Q

What is Polyglycolic acid used for?

A

Dental surgery

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8
Q

How are the filaments organized in Polyglycolic acid

A

Braided

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9
Q

What are 3 qualities of Glycomer 631?

A

Absorbable
Monofilament
Synthetic

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10
Q

How is chromic gut broken down?

A

Phagocytosis

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11
Q

How is Polyglactin 910 broken down?

A

Hydrolysis

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12
Q

How is Polyglycolic acid broken down?

A

Hydrolysis

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13
Q

How is Glycomer 631 broken down?

A

Hydrolysis

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14
Q

What are the uses of Glycomer 631?

A

Closure of hollow viscus (enterotomies, cystotomies), body wall and fascia

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15
Q

What are 3 qualities of Caprolactone?

A

Absorbable
Monofilament
Synthetic

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16
Q

How is Caprolactone broken down?

A

Hydrolysis

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17
Q

What are the uses of Caprolactone?

A

Closure of uninfected bladders and SQ tissue

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18
Q

What are 3 qualities of Poliglecaprone 25?

A

Absorbable
Monofilament
Synthetic

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19
Q

How is Poliglecaprone 25 broken down?

A

Hydrolysis

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20
Q

What are the uses of Poliglecaprone 25?

A

Closure of non-infected bladders and SQ

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21
Q

What are 3 qualities of Polidioxanone?

A

Absorbable
Monofilament
Synthetic

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22
Q

How is Polidioxanone broken down?

A

Hydrolysis

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23
Q

What is special about Polidioxanone’s absorbability?

A

It’s prolonged

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24
Q

What are the uses of Polidioxanone?

A

Closure of hollow viscus (enterotomies, cystotomies), body wall and fascia

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25
What are 3 qualities of silk?
Non-absorbable Multifilament Natural
26
How are the filaments organized in silk?
Braided
27
What is silk used for?
Cardiovascular surgery
28
What are 3 qualities of nylon?
Non-absorbable Monofilament Synthetic
29
What is nylon susceptible to?
Degradation
30
What can cause nylon to lose tensile strength?
Hydration
31
What is nylon used for?
Skin closure, orthopedic repair
32
What are 3 qualities of Polyproylene?
Non-absorbable Monofilament Synthetic
33
What makes Polypropylene so strong?
Very resistant to degradation b/c lacks hydrolyzable bonds
34
What is Polypropylene used for?
Tendon, ligament, fascial and join capsule closures
35
What are 3 qualities of Polymerized caprolactam?
Non-absorbable Multifilament Synthetic
36
How are the filaments organized in Polymerized caprolactam?
Twisted
37
What is Polymerized caprolactam used for?
Skin sutures ONLY
38
What are 3 qualities of Stainless steel?
Non-absorbable | Monofilament OR Twisted
39
What does stainless steel have a high content of?
Nickel and chromium
40
What does the "L" designation on stainless steel suture mean?
Low carbon
41
What is stainless steel suture used for?
Orthopedic applications (closure of sternotomy)
42
What are 6 characteristics of suture?
``` Size Flexibility Surface characteristics and coating Capillarity Tensile Strength Knot security ```
43
What is the smallest suture size?
12-0
44
What is the largest suture size?
7
45
Which has less tensile strength, small or large suture?
Small
46
When do you want more suture flexibility?
Vessel ligation
47
What does the surface characteristic of suture have to do with it's behaviour?
Affects the ease of passing suture through the tissue (friction)
48
What can be done to braided suture to decrease drag (friction)?
Can be coated
49
What is capillarity?
Ability of fluid and bacteria to be wicked along suture
50
What is important to remember about capillarity and infected tissue?
Multifilament suture should not be used in contaminated or infected tissues
51
What is tensile strength?
Measure of a tissue or fibers ability to resist deformation or breakage.
52
What is a rule of thumb with tensile strength?
Suture should be as strong as the tissues in which they are placed
53
What is knot strength?
The amount of force needed to cause a knot to slip
54
What are surgical needles made of?
Stainless steel
55
What is the most commonly used needle shape?
1/2 circle
56
What needle shape is more easily manipulated through superficial tissue?
3/8 circle
57
What needle shape is used for opthalmic procedures?
1/4 circle
58
What shape needle is good for confined spaces and deep tissues?
5/8 circle
59
When is a straight needle used?
When placing purse-string sutures
60
How is a straight needle manipulated?
With fingers
61
What is a taperpoint needle?
Sharp, non-cutting needle
62
What 3 tissues is a taperpoint used for?
Intestine SQ tissue Fascia
63
What is a tapercut needle?
Combo of reverse cutting and taperpoint
64
What 3 tissues is a tapercut used for?
Heavy, thick fascia Tendon Vascular grafts
65
What is a Cutting needle?
Cutting edge on concave portino of needle
66
What is a reverse cutting needle?
Cutting edge on convex side.
67
What is a benefit of a reverse cutting over a cutting needle?
Reverse cutting tends to reduce risk of tissue cut out
68
What tissue is a reverse cutting needle for?
Skin
69
What is a spatula point needle?
Flat on top and bottom
70
What is a spatula point needle used for?
Opthalmic procedures
71
What is a blunt point needle?
A blunt point that dissects through friable tissue without cutting it
72
What tissue is a blunt point needle used for?
Soft parenchymal organs (liver, kidneys)

Surgery Lab (3 decks)

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