Suture Flashcards
(24 cards)
absorbable multifilament sutures
Catgut
Chromic gut
Vicryl
Vicryl rapide
Abosorbable monofilament
Monocryl
PDS II
Non-absorbable multi filament
Silk
Nonabsorbable monofilament
Nylon
Prolene
Is 3 smaller than 3.0 suture?
No 3 is bigger than 3.0
Monofilament Pros and Cons
Less drag, decreased capillarity, uniform, decreased risk of nidus
Monofilament Pros and Cons
Pros: Less drag, decreased capillarity, uniform, decreased risk of nidus
Cons: increased memory, less pliable, susceptible to damage
Multifilament Pros and Cons
Pros: greater strength and pliability
Cons: increased tendency for bacterial colonization and tissue drag
Absorbable suture loses tensile strength within __ days in living mammalian tissue
60-90
Non-absorbable suture retains all tensile strength __ days
> 60
Catgut/Chromic gut Pros and Cons
Pros: good handling and inexpensive
Cons: tissue reactivity, poor knot security when wet, infected wounds decrease tensile strength
Monocryl pros and cons
Pros: good handling, good strength, absorbs predictably, minimally reactive, good in contaminated wounds
Cons: expensive
Monocryl is made of __ and has __ tensile strength lost at 1 week and __ at 2 weeks. It’s completely absorbed at __ months
Poliglecaprone 25, 50%, 70-80%, 4 months
Vicryl is made of __ and has 50% tensile strength at __ weeks and is completely absorbed at __days
Polyglactin 910, 2-3 weeks, 56-70 days
Vicryl Pros and Cons
Pros: good handling and know security, soft and minimally reactive
Cons: multifilament so increased drag and capillary action
PDS II is made of ___ and has 50% tensile strength at __ and is completely absorbed by __ months
Polydioxanone 4-6 weeks, 6 months
PDS II Pros and Cons
Pros: minimally reactive, no capillarity, good handling, good knot security, absorbs predictably, can be used in contaminated wounds
Cons: expensive
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
High, 3 months, 2 years
Prolene (polypropylene) pros and cons
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
Nylon is usually a __ and made of monosof, ethology, polyamide, braunidmide. It loses 50% tensile strength at __ weeks in acidic environments
Monofilament, 12 weeks
Nylon pros and cons
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)
A non-swaged needle needs to be __ while a swaged __
Threaded, does not
Describe when a taper needle should be used vs a reverse cutting
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.
When should staples be used?
Linear incisions, thicker skin or for speed (ex. P not doing well under anesthesia)