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Flashcards in Suture materials Deck (82):
1

What are the properties of ideal suture? (13)

1. maintain tensile strength
2. nonelectrolytic
3. noncapillary
4. nonallergenic
5. noncarcinogenic
6. good handling
7. secure knots
8. minimal reactivity
9. dependable absorption or inert
10. inexpensive
11. readily available
12. easily sterilized
13. do not favour bacteria

2

What are the properties of ideal suture? (13)

1. maintain tensile strength
2. nonelectrolytic
3. nonca

3

What are two classifications of suture materials?

1. absorbable vs nonabsorbable
2. natural vs synthetic

4

What are 8 absorbable sutures?

1. collagen
2. surgical gut
3. polyglycolic acid
4. polyglactin 910
5. polydioxanone
6. polyglyconate
7. poliglecaprone 25
8. glycomer 631

5

What are 7 non-absorbable suture materials?

1. silk
2. cotton
3. nylon
4. polypropylene
5. polymerized caprolactam
6. polyester
7. stainless steel

6

What are the most important suture material properties to consider when deciding on what to use?

1. maintain tensile strength
2. noncapillary
3. good handling
4. secure knots
5. minimal reactivity
6. dependable absorption or inert
7. not favour bacteria

7

What are the features of surgical gut?

1. absorbable
2. small intestine of cattle and sheep
3. multifilament
4. formaldehyde treated
5. ionizing radiation
6. not autoclavable

8

What features does surgical gut not fulfill

1. only maintains tensile strength 50% @ 14d
2.picks up moisture (capillary)
3.
4. non-secure knots. Have to leave long tails because picks up moisture
5. minimal reactivity NO
6. phagocytosis so absorption unpredictable unpredictable
7. does not favor bacteria--NO--multifilament

9

What 1 feature does surgical gut fulfill

good handling

10

What 1 feature does surgical gut fulfill

good handling

11

What are the features of polyglycolic acid suture (dexon)

1. multifilament
2. synthetic
3. absorbable

12

What properties does polyglycolic acid fulfill?

1. maintains tensile strength-but short lived (20% @ 14d)
2.
3. good handling--saws tissue
4. secure knots--long tails b/c wiggles
5. minimal reactivity
6. dependable absorption )100-120days)
7.

13

What properties does polyglycolic acid not fulfill?

1. it is not noncapillary (braided)
2. it favours bacterial growth (braided)

14

What are the features of polyglactin 910? (coated vicryl)

1. multifilament
2. synthetic
3. absorbable

15

What properties does polyglactin 910 fulfill?

1. maintains tensile strength (50% @14, 20% @ 21)
2.
3. good handlinng--saws tissue
4. secure knots but make tails long
5. minimal reactivity
6. dependable absorption (40-90 days)
7.

16

What two absorbable multifilament synthetic sutures have very similar properties? What is 1 difference?

1. dexxon (polyglycolic acid)
2. coated vicryl (polyglactin)

coated vicryl absorbed a bit faster than dexxon so then maybe put coated vicryl in area where abcess/infection may occur

17

What properties does polyglactin 910 fulfill?

1. maintains tensile strength (50% @14, 20% @ 21)
2.
3. good handlinng--saws tissue
4. secure knots but make tails long
5. minimal reactivity
6. dependable absorption (40-90 days)
7.

18

What two absorbable multifilament synthetic sutures have very similar properties? What is 1 difference?

1. dexxon (polyglycolic acid)
2. coated vicryl (polyglactin)

coated vicryl absorbed a bit faster than dexxon so then maybe put coated vicryl in area where abcess/infection may occur

19

What are the features of polydioxanone (PDS)

1. absorbable
2. monofilament
3. synthetic

20

What properties does coated vicryl (polyglactin) not fulfil?

capillary
favours growth of bacteria

21

What properties does PDS (polydioxanone) fulfill?

1. maintain tensile strength

22

What properties does PDS (polydioxanone) fulfill?

all of them
1. maintain tensile strength (75% @14d, 58%@4weeks, 14%@8weeks)
2. noncapillary
3. good handling--can kink
4. secure knots
5. minimal reactivity
6. dependable absorption (180d)
7. does not favor bacteria

23

Why is PDS (polydioxanone) better than vicryl or dexxon?

much better strength retention
noncapillary
doesn't favor bacteria

24

What are the features of polyglyconate? (maxon)

1. absorbable
2. monofilament
3. synthetic

25

What properties does polyglyconate (maxon) have?

1. maintains tensile strength--similar to PDS
2. noncapillary
3. good handling--doesn't kink?
4. secure knots--can be slippery
5. minimal reactivity
6. dependable absorption (180 d)
7. does not favor bacteria

26

What are the features of poliglecaprone 25 (ethicon)

1. absorbable
2. monofilament
3. synthetic

27

What properties does poliglecaprone (ethicon) have?

1. maintains tensile strength (30% @ 14d)
2. noncapillary
3. good handling
4. secure knots
5. minimal reactivity
6. dependable absorption (60-90d)
7. does not favor bacteria

28

What is poliglecaprone 25 (ethicon) a good choice for?

subcutaneous/cutaneous closures where don't need strength for long after and for wounds where there may be a few bacteria left in the wound

29

What are the features of glycomer 631 (biosyn)

1. absorbable
2. monofilament
3. synthetic

30

What properties does glycomer 631 (biosyn) have?

1. maintains tensile strength (50% @ 21 days)
2. noncapillary
3. good handling
4. secure knots
5. minimal reactivity
6. depndeable absorption (90-110 days)
7. does not favour bacteria

31

What is one good use for glycomer 631 (biosyn)

in uterine closure in cows where need more than 14 days of hoding power

32

What are the general features of dexon and vicryl?

1. braided
2. relatively short lastinng

33

What are the general features of PDS and maxon?

1. monogliament
2. long holding capacities
3. good for fascia closure

34

What are the general features of biosyn and monocryl?

can be used any place that would use dexon, vicryl, or gut

35

What are the features of poliglecaprone 25 (monocryl)

1. absorbable
2. monofilament
3. synthetic

36

What properties does poliglecaprone (monocryl) have?

1. maintains tensile strength (30% @ 14d)
2. noncapillary
3. good handling
4. secure knots
5. minimal reactivity
6. dependable absorption (60-90d)
7. does not favor bacteria

37

What is poliglecaprone 25 (monocryl) a good choice for?

subcutaneous/cutaneous closures where don't need strength for long after and for wounds where there may be a few bacteria left in the wound

38

What are the general features of biosyn and monocryl?

can be used any place that would use dexon, vicryl, or gut

39

Place the absorbable sutures in order of maintenance of tensile strength

1. PDS
2.. maxon
3. biosyn
4. dexon
5. coated vicryl
6. surgical gut
7. monocryl

40

Place the absorbable sutures in order of their absorption rate (slowest to fastest)

1. PDS 180d
2. Maxon 180d
3. dexon 100-120d
4. biosyn 90-110d
5. monocryl 60-90d
6. vicryl 40-90d
7. surgical gut (unreliable)

41

What are the features of silk?

1. non-absorbable
2. multifilament
3. natural
4. ligature
5. standard

42

What properties does silk have?

1. maintains tensile strength 50%@1yr
2.
3. good handling
4. secure knots
5.
6.
7.
8.

43

What properties does silk not have?

it is capillary
it is irritating (reactivity)
it is not inert
it favours bacterial growth

44

What are the features of cotton?

1. non-absorbable
2. multifilament

45

What are the features of cotton?

1. non-absorbable
2. multifilament
3. natural
4. umbilical tape (?)

46

What properties does cotton have?

1. tensile strength (50% @ 60 months)
2.
3. good handling
4. secure knots--get tighter when wet
5.
6.
7.
8.

47

What properties does cotton not have?

it has capillary effects
it has reactivity
it is not inert
it favors bacteria

48

What is cotton used for?

can be used for circumferencial loops around vulva or holding bandages on (not used that much)

49

What are the features of nylon?

1. non-absorbable
2. monofilament
3. synthetic

50

What properties does nylon have?

1. maintains tensile strength
2. noncapillary
3. good handling (memory)
4. secure knots
5. minimal reactivity
6. inert
7. does not favour bacteria--actually antibacterial

51

What is nylon a good choice for?

skin closure

52

What are the features of polypropylene (novafil, prolene)

1. maintains tensile strength (but less than nylon)
2. noncapillary
3. good handling--slippery!!
4. secure knots
5. minimal reactivity
6. inert
7. does not favor bacteira

53

What are the features of polymerized caprolactam (vetafil/supramid)

1. non-absorbable
2. multifilament
3. synthetic
4. related to nylon

54

How is polymerized caprolactam (vetafil/supramid) typically packaged?

in cassettes

55

What are the properties of polymerized caprolactam (vetafil, supramid)

1. maintains tensile strength (stronger than nylon)
2.
3. good handling
4. secure knots
5.
6. inert
7.

56

What properties does caprolactam (vetafil, supramid) not have

it is not noncapillary because the coating breaks down and reveals multifilament
it is reactive--may cause animal to want to chew out sutures
it can favour bacteria

57

What suture should NOT be buried?

polymerized caprolactam

58

What suture should NOT be buried?

polymerized caprolactam

59

What are the features of polyester (ethibond)

1. non-absorbable
2. multifilament
3. synthetic

60

What properties does polyester (ethibond) have?

1. maintain tensile strength (better than nylon), very strong!
2.
3. good handling-saw tissue
4. secure knots but must do 6 throws :(
5.
6.
7.
8.

61

What properties does polyester (ethibond) not have?

is has capillary action
it is reactive
it is not inert
it favors bacteria

62

What is pretty well the only thing that polyester is used for?

laryngoplasty

63

What are the properties of stainless steel?

1. maintain tensile strength (>nylon)
2. noncapillary
3.
4. secure knots
5. minimal reactivity
6. inert
7. not favour bacteria

64

What is a problem with stainless steel?

it can be hard to handle (requires experience)

65

What can stainless steel be used for in large animal?

to repair abomasal fistulas following plexy to abdominal wall

66

What are the non-absorbable sutures

1. silk
2. cotton
3. nylon
4. polypropylene (novafil)
5. vetafil/supramid
6. polyester (ethibond)
7. stainless steel

67

What must strength of suture be related to when choosing a suture material?

the strength of the tissue

68

What must suture decay be related to when choosing a suture material?

tissue healing

69

What is the ideal suture type for skin?

monofilament non-absorbable

70

What is the ideal suture type for subcutaneous tissue?

synthetic absorbable (monocryl or biosyn)

71

What is the ideal suture type for facia?

monofilament absorbable or nonabsorbable

72

what is the ideal suture type for tendon?

monofilament absorbable (PDS, maxon) or nylon

73

What are two different types of suture needles in terms of attachment to suture? What are the differences?

1. swaged on
less traumatic
technically easier
2. eyed needle
more traumatic
technically difficult

74

What are two different types of suture needles in terms of attachment to suture? What are the differences?

1. swaged on
less traumatic
technically easier
2. eyed needle
more traumatic
technically difficult

75

What are 4 different shapes of needles?

1. half circle
2. 3/8 circle
3. 1/2 curved
4. straight

76

What are three types of points of suture needles?

1. taper
2. cutting
3. reverse cutting

77

What is a taper cut?

The needle has a tapered body and a cutting point

78

What is a trocar point?

it has a round body and a point with edges

79

What determines the type of circle used for a wound?

the depth of the wound

80

What type of needle should be used for the skin?

cutting

81

What type of needle should be used for the bowel and subQ?

taper

82

What type of needle should be used for fascia, tendon?

taper or modfied cutting