02. suture Flashcards

(71 cards)

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
chromic gut is mono or multifilament?
multifilament twisted
26
what happens to knot security of chromic gut when it gets wet?
decreases
27
what is chromic gut made of?
90% collagen submucosa of sheep intestine
28
polyglactin 910 is also called ___
vicryl
29
polyglactin 910 is broken down by ___
hydrolysis Vicryl
30
___ is rapidly degraded in infected urine
polyglactin 910 (vicryl) polyglycolic acid
31
polyglactin 910 is a mono or muliti?
multi braided Vicryl
32
___ is used in dental surgery
vicryl (polyglactin 910) polyglycolic acid high knot security but soft because it is a multifilament
33
polyglycolic acid is a mono or multi
synthetic multifilament braided
34
polyglycolic acid is broken down by ___
hydrolysis
35
polyglycolic acid suture is rapidly degraded in ___
urine
36
poliglecaprone 25 breaks down in how many days___
119 days (2-3 months monocryl ➡monofilament
37
___ is used to close cystotomies
monocryl (poliglecaprone 25)→ mono-119 biosyn (glycomer 631) → mono-90-110 PDS (polidioxanone) →uncoated mono- 180
38
glycomer 631 takes ___ to break down
90-110 days biosyn (synthetic monofilament)
39
glycomer 631 is used to close ___
enterotomies, cystotomies, body wall closure, fascia closure (biosyn - synthetic monofilament that takes 90-110 days to break down)
40
polydioxanone takes ___ to absorb
180 days PDS - monofilament
41
Polydioxanone is a mono or multi
synthetic monofilament PDS - takes 180 days to breakdown
42
___ is the work horse of suture. used to close body wall, fascia, enterotomies and cystotomies
PDS (polydioxanone) takes 180 days to break down
43
silk is absorbable or non-absorbable?
non although in cats does not last forever natural braided multifilament
44
silk is mono or multi
natural braided multi
45
silk is used for ___
cardiovascular surgery - tying off blood vessels
46
nylon is non-absorbable or absorbable?
non synthetic monofilament
47
nylon is mono or multi?
mono synthetic- non absorbable
48
nylon is used for
skin closure, ortho (ACL)
49
___ is non-absorbable but is susceptible to degradation
nylon monofilament synthetic
50
___ suture is used for transplant patients that heal slowly
polypropylene non absorbable, resistant to degradation, synthetic monofilament
51
polypropylene is mono or multi
Prolene non absorbable, resistant to degradation, synthetic monofilament
52
polypropylene is used for __
tendon, ligament, fascial, and joint capsule (things that take a long time to heal) non absorbable, resistant to degradation, synthetic monofilament
53
polymerized caprolactam is mono or multi
non-absorbable synthetic multifilament used for skin sutures only (vetafil- used in large animal)
54
___ is not recommend for implantation in tissues due to sinus formation
polymerized caprolactam vetafil - non-absorbable, synthetic nylon based multifilament
55
___ is used to close steronotomty
stainless steel suture non-absorbable (monofilament or twisted)
56
___ is the most commonly used shape of a needle
1/2 circle
57
___ :commonly used and more easily manipulated through superficial tissue
3/8 circle (used for vessels)
58
___ needle is used for ophthalmic procedures
1/4 circle
59
___ needed is useful in confined location or deep tissue
5/8 circle
60
___ needle is used to place purse string suture
straight needle
61
taperpoint push gently through tissues sharp tip that pierces without cutting tissue used for intestine, sub-q tissue and fascia
62
tapercut combo of reverse cutting and taperpoint used for heavy, thick fascia, tendon and vascular grafts
63
cutting cutting edge on concave portion of needle, tends to cut out of tissue
64
reverse cutting cutting edge on convex surface reducing risk of tissue cut out used for thick tissue such as skin
65
a cutting needle has the edge on the ___ side of the needle
concave
66
a reverse cutting needle has the edge on the ___ side of the needle
convex
67
spatula point used for ophthalmic procedures
68
what size and type of suture for a bladder
3-0 PDS (polydioxanone→absorbable monofilament) monocryl ( poliglecaprone 25→absorbable monofilament) biosyn (glycomer 631→absorbable monofilament)
69
what size suture and type of suture for the body wall?
2-0, 0 PDS (polydioxanone→absorbable monofilament- takes 180 days to absorb) if immunocompromised could use a non-absorbable suture
70
what size or type of suture for subq
3-0, 2-0 monocryl ( poliglecaprone 25→absorbable monofilament)
71
what size and type of suture for skin closure
absorbable or non absorbable