Suture

Question 1

absorbable multifilament sutures

Answer 1

Catgut
Chromic gut
Vicryl
Vicryl rapide

Question 2

Abosorbable monofilament

Answer 2

Monocryl
PDS II

Question 3

Non-absorbable multi filament

Answer 3

Silk

Question 4

Nonabsorbable monofilament

Answer 4

Nylon
Prolene

Question 5

Is 3 smaller than 3.0 suture?

Answer 5

No 3 is bigger than 3.0

Question 6

Monofilament Pros and Cons

Answer 6

Less drag, decreased capillarity, uniform, decreased risk of nidus

Question 7

Monofilament Pros and Cons

Answer 7

Pros: Less drag, decreased capillarity, uniform, decreased risk of nidus

Cons: increased memory, less pliable, susceptible to damage

Question 8

Multifilament Pros and Cons

Answer 8

Pros: greater strength and pliability

Cons: increased tendency for bacterial colonization and tissue drag

Question 9

Absorbable suture loses tensile strength within __ days in living mammalian tissue

Answer 9

60-90

Question 10

Non-absorbable suture retains all tensile strength __ days

Answer 10

> 60

Question 11

Catgut/Chromic gut Pros and Cons

Answer 11

Pros: good handling and inexpensive

Cons: tissue reactivity, poor knot security when wet, infected wounds decrease tensile strength

Question 12

Monocryl pros and cons

Answer 12

Pros: good handling, good strength, absorbs predictably, minimally reactive, good in contaminated wounds

Cons: expensive

Question 13

Monocryl is made of __ and has __ tensile strength lost at 1 week and __ at 2 weeks. It’s completely absorbed at __ months

Answer 13

Poliglecaprone 25, 50%, 70-80%, 4 months

Question 14

Vicryl is made of __ and has 50% tensile strength at __ weeks and is completely absorbed at __days

Answer 14

Polyglactin 910, 2-3 weeks, 56-70 days

Question 15

Vicryl Pros and Cons

Answer 15

Pros: good handling and know security, soft and minimally reactive
Cons: multifilament so increased drag and capillary action

Question 16

PDS II is made of ___ and has 50% tensile strength at __ and is completely absorbed by __ months

Answer 16

Polydioxanone 4-6 weeks, 6 months

Question 17

PDS II Pros and Cons

Answer 17

Pros: minimally reactive, no capillarity, good handling, good knot security, absorbs predictably, can be used in contaminated wounds

Cons: expensive

Question 18

Silk is natural and braided with __ tissue reactivity and has 56% tensile strength at __ months and is completely absorbed by __ years. It has some use for hand timing vessels

Answer 18

High, 3 months, 2 years

Question 19

Prolene (polypropylene) pros and cons

Answer 19

Pros: minimally reactive/least thromboxane so it can be used in tendons, ligaments, joint capsule, fascia; resistant to degradation, can be used in contaminated wounds

Cons: poor handling -> slippery and memory, poor knot security

Question 20

Nylon is usually a __ and made of monosof, ethology, polyamide, braunidmide. It loses 50% tensile strength at __ weeks in acidic environments

Answer 20

Monofilament, 12 weeks

Question 21

Nylon pros and cons

Answer 21

Pros: minimal reactivity (good for skin), biologically inert, no capillarity, antibacterial by products, inexpensive

Cons: fair handling, poor knot security, irritation from suture ends (leave longer tags)

Question 22

A non-swaged needle needs to be __ while a swaged __

Answer 22

Threaded, does not

Question 23

Describe when a taper needle should be used vs a reverse cutting

Answer 23

A taper point needle is only sharp on the point so it is used for things like soft tissue or luminal organs that are relatively easy to get through. Comparatively, reverse cutting needles are sharp on the bottom ridge and point of the needle so it stays sharp all the way through and can be used for tougher tissues and skin.

Question 24

When should staples be used?

Answer 24

Linear incisions, thicker skin or for speed (ex. P not doing well under anesthesia)