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Fall 22: surgical > 02. suture > Flashcards

02. suture Flashcards

1
Q

properties of ideal suture

____ tissue reaction
* Gentle passage through tissues (low friction)
* High knot ____
* ____ Capillarity
* Maximum tensile strength/high breaking strength
* Consistent performance
* Good and predictable absorption
* Comfortable handling

A

Minimal tissue reaction
* Gentle passage through tissues (low friction)
* High knot safety and security
* No Capillarity
* Maximum tensile strength/high breaking strength
* Consistent performance
* Good and predictable absorption
* Comfortable handling

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2
Q

tensile force

A

pull from end to end

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3
Q

will mono or multi bend more easily

A

multi (although more drag)

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4
Q

bigger or small suture have more knot stability?

A

smaller

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5
Q

how is suture measured?

A

smallest 12-0
largest 7

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6
Q

smaller suture size =
less or more tensile strength
less or more breakable

A

less
more

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7
Q

more ___ suture is better for vessel ligation

A

flexible

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8
Q

multi or mono filament are more flexible?

A

multifilament

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9
Q

what are some downfalls of braided material

A

increased friction and more traumatic

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10
Q

____ process by which fluid and bacteria are wicked along multifilament material

A

capillarity

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11
Q

all ___ suture have capillarity

A

braided

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12
Q

what kind of suture should not be used in contaminated or infected tissues?

A

multifilament

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13
Q

__ is the measure of a fibers ability to resist deformation or breakage

A

tensile strength

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14
Q

Amount of force necessary to cause a knot to slip

A

knot stength

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15
Q

lower friction = ___ knot strength

A

decreased

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16
Q

2-0 monofilament suture will have ____knot strength
compared to 2-0 multifilament suture

A

decreased

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17
Q

2-0 monofilament suture will have ___ knot strength compares to 4-0 monofilament suture

A

decreased

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18
Q

___ diameter suture have decreased knot security

A

larger

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19
Q

vicryl is also called?

A

polyglactin 910
braided
desolved in 56-70 days
hydrolytic degradation

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20
Q

what type of suture takes 180 days to absorb?

A

PDS
polydioxanone
monofilament

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21
Q

what are some absorbable sutures

A

chromic gut
polyglactin 910(vicryl)
polyglycolic acid
caprolactone
poliglecaprone 25 (monocryl)
polydioxanone (PDS)

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22
Q

what are some non-absorbable sutures?

A

nylon
silk (ethilon)
polypropylene (prolene)
polymerized caprolactam
stainless steel wire

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23
Q

chromic gut is broken down by ___

A

phagocytosis

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24
Q

___ type of suture causes significant tissue reaction

A

chromic gut

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25
Q

chromic gut is mono or multifilament?

A

multifilament twisted

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26
Q

what happens to knot security of chromic gut when it gets wet?

A

decreases

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27
Q

what is chromic gut made of?

A

90% collagen
submucosa of sheep intestine

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28
Q

polyglactin 910 is also called ___

A

vicryl

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29
Q

polyglactin 910 is broken down by ___

A

hydrolysis
Vicryl

30
Q

___ is rapidly degraded in infected urine

A

polyglactin 910 (vicryl)
polyglycolic acid

31
Q

polyglactin 910 is a mono or muliti?

A

multi braided
Vicryl

32
Q

___ is used in dental surgery

A

vicryl (polyglactin 910)
polyglycolic acid
high knot security but soft because it is a multifilament

33
Q

polyglycolic acid is a mono or multi

A

synthetic multifilament braided

34
Q

polyglycolic acid is broken down by ___

A

hydrolysis

35
Q

polyglycolic acid suture is rapidly degraded in ___

A

urine

36
Q

poliglecaprone 25 breaks down in how many days___

A

119 days (2-3 months
monocryl ➡monofilament

37
Q

___ is used to close cystotomies

A

monocryl (poliglecaprone 25)→ mono-119
biosyn (glycomer 631) → mono-90-110
PDS (polidioxanone) →uncoated mono- 180

38
Q

glycomer 631 takes ___ to break down

A

90-110 days
biosyn (synthetic monofilament)

39
Q

glycomer 631 is used to close ___

A

enterotomies, cystotomies, body wall closure, fascia closure

(biosyn - synthetic monofilament that takes 90-110 days to break down)

40
Q

polydioxanone takes ___ to absorb

A

180 days

PDS - monofilament

41
Q

Polydioxanone is a mono or multi

A

synthetic monofilament

PDS - takes 180 days to breakdown

42
Q

___ is the work horse of suture. used to close body wall, fascia, enterotomies and cystotomies

A

PDS (polydioxanone)

takes 180 days to break down

43
Q

silk is absorbable or non-absorbable?

A

non
although in cats does not last forever

natural braided multifilament

44
Q

silk is mono or multi

A

natural braided multi

45
Q

silk is used for ___

A

cardiovascular surgery - tying off blood vessels

46
Q

nylon is non-absorbable or absorbable?

A

non
synthetic monofilament

47
Q

nylon is mono or multi?

A

mono

synthetic- non absorbable

48
Q

nylon is used for

A

skin closure, ortho (ACL)

49
Q

___ is non-absorbable but is susceptible to degradation

A

nylon

monofilament synthetic

50
Q

___ suture is used for transplant patients that heal slowly

A

polypropylene

non absorbable, resistant to degradation, synthetic monofilament

51
Q

polypropylene is mono or multi

A

Prolene

non absorbable, resistant to degradation, synthetic monofilament

52
Q

polypropylene is used for __

A

tendon, ligament, fascial, and joint capsule
(things that take a long time to heal)

non absorbable, resistant to degradation, synthetic monofilament

53
Q

polymerized caprolactam is mono or multi

A

non-absorbable synthetic multifilament

used for skin sutures only
(vetafil- used in large animal)

54
Q

___ is not recommend for implantation in tissues due to sinus formation

A

polymerized caprolactam

vetafil - non-absorbable, synthetic nylon based multifilament

55
Q

___ is used to close steronotomty

A

stainless steel suture
non-absorbable (monofilament or twisted)

56
Q

___ is the most commonly used shape of a needle

A

1/2 circle

57
Q

___ :commonly used and more easily
manipulated through superficial tissue

A

3/8 circle
(used for vessels)

58
Q

___ needle is used for ophthalmic procedures

A

1/4 circle

59
Q

___ needed is useful in confined location or deep tissue

A

5/8 circle

60
Q

___ needle is used to place purse string suture

A

straight needle

61
Q
A

taperpoint
push gently through tissues
sharp tip that pierces without cutting tissue
used for intestine, sub-q tissue and fascia

62
Q
A

tapercut
combo of reverse cutting and taperpoint
used for heavy, thick fascia, tendon and vascular grafts

63
Q
A

cutting
cutting edge on concave portion of needle, tends to cut out of tissue

64
Q
A

reverse cutting
cutting edge on convex surface reducing risk of tissue cut out
used for thick tissue such as skin

65
Q

a cutting needle has the edge on the ___ side of the needle

A

concave

66
Q

a reverse cutting needle has the edge on the ___ side of the needle

A

convex

67
Q
A

spatula point
used for ophthalmic procedures

68
Q

what size and type of suture for a bladder

A

3-0 PDS (polydioxanone→absorbable monofilament)
monocryl ( poliglecaprone 25→absorbable monofilament)
biosyn (glycomer 631→absorbable monofilament)

69
Q

what size suture and type of suture for the body wall?

A

2-0, 0 PDS (polydioxanone→absorbable monofilament- takes 180 days to absorb)

if immunocompromised could use a non-absorbable suture

70
Q

what size or type of suture for subq

A

3-0, 2-0 monocryl ( poliglecaprone 25→absorbable monofilament)

71
Q

what size and type of suture for skin closure

A

absorbable or non absorbable

Fall 22: surgical (16 decks)

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