Suture Materials, Patterns and Disease of SA (male) Flashcards
(164 cards)
Functions of Suture Material
(4)
- mid-line abdominal incision - wound closure
- ligate structures (vessels)
- stay sutures

Ideal Suture Material
- interaction with the tissue (8)
- Interaction with the surgeon (2)
- depends on how long that idividual tissue takes to heal
- complications: ex- abcesses
- want to reduce Post op infections
- want something that will not coil up easily

Ideal Suture Material
-Material Properties (6)
Practical Considerations (3)
- non-capillary: doesnt wick up moisture including bacteria

Classification of Suture Material
(origin/manufacture, persistence, structure)

Classification - Origin & Manufacture
(2)
- cat gut on far left
- silk
- synthetic: much more predictable

Classification - Persistence
(2)
- need to think about if absorbable or non- absorbable wound be more beneficial
- non-absorbable: causes encapsulation if there is an infection
- would be preferable for animals who are immunocompromised and/or on chemotherapy to use non-absorbable as they will have a longer wound healing time than a normal patient would
- also for tissues that will take a long time to heal: like tendon and need extra support or a PDA that would need long term closure (silk ligatures)

Classification - Structure
(2)
- multi: can potential wick up bacteria
- mono: moves through tissue more easily, but need to be careful when handling as it is weaker

Calssification - Coating, Color, Packaging
- can have coating on multi to help reduce drag and make it glide easily like a monofilament
- cassette: makes it so there is more readily available in a large amount


- want to have a suture glide easily through if you are dealing with delicate tissue - (ex: cystotomy)
- abcess in lung: need to have a really strong suture to prevent any leaking
- Echo
Choice of Suture Material
- They can be mixed in different ways
- how strong is that suture when it goes into the body? When is that strength lost?

Synthetic Absorbable Multifilament
- materials (4)
- interaction with tissue (2)
- echo
- dexon sticks around for the longest

Synthetic Absorbable Multifilament
- tensile strength & loss (2)
- handling & knotting (2)
- Use (2)
- polysorb is strongest
- coating over the multi-filaments
- very soft - if we are looking after brachiocephalic dogs, resection of palates - this would be a good option
Synthetic Absorbable Monofilament - short duration
(materials, Interaction with tissue, Tensile Strength & loss)

- caprosyn absorvbeed faster than monocryl
Synthetic Absorbable Monofilament - short duration
(handling & knotting, Use)
- monocryl is much nicer to handle
- Typically used for intradermal sutures and closure of viscera

Synthetic Absorbable Monofilament - long duration
(materials, interaction with the tissue)

- much longer lasting material
- midline closures –> NEED it to be a strong closure
- has a lot of memory: need to stretch out while putting it in, need to put in more knots due to its high memory
Synthetic Absorbable Monofilament -long duration
(Tensile strength & loss, Handling & knotting, use)

Synthetic Non- absorbable Monofilament
(materials, Interaction with tissue, tensile strength)
- trade name –> material
- very strong

Synthetic Non- absorbable Monofilament
(handling & knotting, use)
- use for extra- hepatic shunts (want to make sure these are permanently closed)
- hernia, tendon –> need to heal would need a lot of support

Synthetic Non-Absorbable Multifilament
(materials, interaction with tissue, tensile strength)
- use when strength is the priority for that wound

Synthetic Non-Absorbable Multifilament
(handling & Knotting, Use)
- some use them for skin closure
- (echo)

Natural Absorbable Multifilament
(materials, Interaction with tissue)
- catgut is contraindicated for use in rabbits
- catgut is not used in the QMH
- absorption and handling is quite unpredictable

Natural Absorbable Multifilament
(tensile strength & loss, Handling & knotting, use)
- It is a natural material so it is unpredictable in the body in terms of absorption
- poor security
- not really good to use clinically

Natural Non- absorbable Multifilament
(materials, tissue interaction, tensile strength)
- become encapsulated in fibrous tissue once retained in the tissue
- will break as they are not very strong
- large vessel ligation - ductus arteriosis
- don’t use in viscera!

Natural Non- absorbable Multifilament
(Handling & knotting, use)


























































































































