Sutures and Hematology Flashcards
Why use sutures?
Close things
Secure something
Ligate something (hemostasis)
Counter acts physical forces while healing
What are the pros of a smaller suture size?
Less tissue trauma
Easier to handle, more flexible
Less tissue reaction
Better knot security
What are the pros of larger suture size?
Greater tensile strength
When should you use absorbable sutures?
Deep tissue and rapidly healing tissue
Hollow viscera
If contamination is concern
Gallbladder, urinary bladder
Body wall, SQ tissues, skin
When should you use non-absorbable sutures?
When long term support is needed
Skin, vessels, tendon repair
What are pros of synthetic sutures?
More predictable absorption and lose of tensile strength
Less inflammation
What are characteristics of monofilament?
Less risk of infection
Less tissue trauma
More susceptible to damage
“Memory”
What are characteristics of multifilament?
More relaxed – less memory
Better knot security
Easier to handle
What are characteristics of multifilament?
More relaxed – less memory
Better knot security
Easier to handle
REVIEW SUTURE MATERIAL SLIDE
Closed eye and French eye
Reusable needles that some with large spools
Conventional and Reverse cutting
Sharper, used for tougher tissue
When to use blunt needles?
For softer tissues like liver
What are the types of suture patterns?
Appositional - Skin
Inversion - Hollow organs (prevents leakage)
Everting - Reptiles due to scales
Interrupted - each throw is its own knot
Continuous - knot at the beginning and and end, tension is distributed evenly.
Cruciate
Intradermal - No suture material outside of skin
Which type of knot is the most secure?
Square knot
