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Sem 6: SASx > SASx Lab - Suture material > Flashcards

SASx Lab - Suture material Flashcards

1
Q

________ is a measurement of suture ability to resist breakage

A

Tensile Strength

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2
Q

What suture is rapidly absorbed in alkaline environments?

A

Poliglecaprone 25 (Monocryl)

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3
Q

What is knot strength?

A

The amount of force necessary to cause a knot to slip or break
- Related to coefficient of friction

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4
Q

What factors affect knot strength?

A
  • Suture size (Increased size, decreases knot strength, requires more throws)
  • Suture material
  • Length of tags
  • Knot quality (half hitch decreases knot strength)
  • Suture pattern
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5
Q

What is pliability of suture?

A
  • Ease of handling
  • Related to material and suture size
  • Coated suture has more pliability
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6
Q

Give an example of a non-absorbable suture with good pliability

A
  • Silk (Natural, braided, non absorbable suture)
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7
Q

Give an example of a non-absorbable suture with poor pliability

A
  • Stainless steel (Hard to handle and work with)
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8
Q

What is capillarity of suture?

A
  • Process by which fluid or bacteria is wicked along suture
  • Contraindicated if infected tissue!
  • Braided suture has high capillarity
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9
Q

When does absorbable suture loose most of its tensile strength?

A

By 60 days

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10
Q

When does non-absorbable suture loose most of its tensile strength?

A

> 60 days

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11
Q

What factors affect the absorption rate of suture?

A
  • Material
  • Coating (takes more time to loose tensile strength)
  • Suture size (larger suture takes more time to loose tensile strength)
  • Biochemical environment (urine, pH, infection)
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12
Q

What is the function of suture coating?

A
  • Decreases tissue drag which decreases friction and trauma
  • Increases pliability (easier to handle)
  • Can be coated with Abx, which is good for infected tissues
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13
Q

Which of the following is the smallest in size?

A. 3-0
B. 5-0
C. 2
D. 1-0

A

B. 5-0

(2 would be the largest)

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14
Q

What is Catgut/Chromic gut, and what are the properties of this suture type?

A
  • Natural absorbable suture
  • Made from SI of cows
  • Very inflammatory
  • Unpredictable enzymatic absorption
  • Not commonly used in SA due the the above reasons
  • Short tensile strength, rapidly degraded
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15
Q

What is the generic name for Monocryl?

A

Poliglecaprone 25

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16
Q

What is the generic name for Vicryl?

A

Polyglactin 910 (braided multifilament)

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17
Q

What is Polyglactin 910, and what are the properties of this suture type?

A
  • Trade name is Vicryl
  • Braided multifilament ABSORBABLE suture
  • Increased pliability
  • Decreased tissue drag (minimal trauma to tissues)
  • Moderate absorption, TS for 14-21 days
  • Not used for infected tissues
  • Rapidly degrades in urine (acidic enviro)
18
Q

What is Polyglycolic acid, and what are the properties of this suture type?

A
  • Trade name is Dexon
  • Braided multifilament ABSORBABLE suture
  • Moderate absorption, TS for 14-21 days
  • Not used for infected tissues
  • Rapidly degrades in urine (acidic enviro)
  • Increased pliability
  • Decreased tissue drag (minimal trauma to tissues)

(Very similar to Polyglactin 910/Vicryl)

19
Q

What is the generic name for Dexon?

A

Polyglycolic acid

20
Q

What is the generic name for Monocryl?

A

Poliglecaprone 25

21
Q

What is Poliglecaprone 25, and what are the properties of this suture type?

A
  • Trade name is Monocryl
  • Monofilament ABSORBABLE suture
  • Rapid absorption, TS for 7-14 days
  • Used for non infected bladders and SC tissue

(Looses tensile strength quicker than Vicryl or Dexon)

22
Q

Does Monocryl or Vicryl have a more rapid absorption and loss of tensile strength?

A

Monocryl absorbs faster (7-14d) vs Vicryl (14-21d)

23
Q

What is Polyglytone 6211, and what are the properties of this suture type?

A
  • Trade name is Caprosyn
  • Monofilament ABSORBABLE suture
  • Rapid absorption, 0% TS at 14-21 days
  • Used for non infected bladders and SC tissue

(Similar to Monocryl / Poliglecaprone 25)

24
Q

What is the generic name for Caprosyn?

A

Polyglytone 6211

25
Q

What is the generic name for Biosyn?

A

Glycomer 631

26
Q

What is Glycomer 631, and what are the properties of this suture type?

A
  • Trade name is Biosyn
  • Monofilament ABSORBABLE suture
  • Maintains TS for 21 days
  • Many uses! Stays around long enough but not too long
  • Main disadvantage is cost
27
Q

What is the generic name for Maxon?

A

Polyglyconate

28
Q

What is Polyglyconate, and what are the properties of this suture type?

A
  • Trade name is Maxon
  • Monofilament ABSORBABLE suture
  • High TS Maintains for 6 weeks!! Very slow to absorb
  • Slow absorption increases FB reaction to suture material

(Very similar to PDS / Polydioxanone)

29
Q

What is the generic name for PDS?

A

Polydioxanone

30
Q

What is Polydioxanone, and what are the properties of this suture type?

A
  • Trade name is PDS
  • Monofilament ABSORBABLE suture
  • Slow absorption, 50% TS at 6 weeks
  • Many uses!
  • Degrades faster in acidic bladder/stomach

(Most similar to Maxon / Polyglyconate)

31
Q

Which absorbable monofilament sutures has the longest absorption / maintains tensile strength for the longest time?

A
  • Polydioxanone / PDS
  • Polyglyconate / Maxon
32
Q

What is Silk, and what are the properties of this suture type?

A
  • Natural, NON-ABSORBABLE braided suture
  • Very inflammatory, only used for cardiac surgery (Ex: PDA)
  • High pliability (easy to work with)
  • High capillarity (bc braided)
33
Q

What is Steel, and what are the properties of this suture type?

A
  • Natural, NON-ABSORBABLE monofilament suture
  • Highest TS and knot security
  • Lowest pliability
  • Used for orthopedics and skin staples
34
Q

What is Polypropylene, and what are the properties of this suture type?

A
  • Trade name is Prolene
  • Synthetic, NON-ABSORBABLE monofilament
  • High TS
  • Low reactivity
  • Used for tendons, ligaments, joint capsules

(For procedures that require a long time to heal)

35
Q

What is the generic name for Ethilon?

A

Nylon

36
Q

What is Nylon, and what are the properties of this suture type?

A
  • Trade name is Ethilon
  • Synthetic, NON-ABSORBABLE monofilament
  • High TS
  • Low pliability (poor handling)
  • Used for skin closure and orthopedic repair (Ex: CCL tear)
37
Q

What is Polymerized Caprolactam, and what are the properties of this suture type?

A
  • Trade name is Vetafil
  • Synthetic, NON-ABSORBABLE twisted multifilament
  • Used for skin only
  • Very inflammatory
38
Q

What is the generic name for Vetafil?

A

Polymerized Caprolactam

39
Q

What is Polymerized Caprolactam used for?

A

Skin sutures only

Very inflammatory non-absorbable suture

40
Q

What is the generic name for Ethibond?

A

Polyester

41
Q

What is Polyester, and what are the properties of this suture type?

A
  • Trade name is Ethibond
  • Synthetic, NON-ABSORBABLE braided multifilament
  • Good TS
  • Poor knot security, requires 6-8 throws
  • High tissue reactivity
  • Used for musculoskeletal surgery

Sem 6: SASx (4 decks)

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