Lecture 10 - Suture Materials & Paterns - LA (Exam 1) Flashcards
What needs to be considered when choosing suture material
- Size & chemical make up (Natural v. synthetic) - How long does it need to last?
- Absorbable v. nonabsorbable - in or out of the body? inflammatory response/
- Monofilament v. multifilament - wound contamination
T/F: The suture used in LA is the same as SA but just bigger
True
What sized suture is used for SQ in LA
2-0
What suture size is typically used for the linea alba
2 or 3
The suture should be as strong as what
The suture should be as strong as the norm tissue through which it is placed
Tensile strength reduction over time should correspond to what
Tensile strength reduction over time should correspond to the healing of the affected tissue
When is suture not needed
Suture is not needed after the wound is healed
What is the strength of the wound mostly dependent on
The strength of the wound is more dep on the tissue’s ability to hold the suture than the suture material itself
What suture is ideal for skin closure
Suture w/ elasticity is ideal for skin closure (adapts to wound edema)
What suture is chosen for abdominal closure
Suture w/ high stiffness is chosen for abdominal closure, herniorraphy, prosthesis, etc
What happens if the suture is oversized & why
Oversized suture will weaken your closure due to excessive tissue rxn
What should be done if a wound is under tension
Wounds under tension = increasing the # of sutures or using a tension relieving pattern is better than increasing suture size
What does suture strength mean
How long the suture needs to last
How quick do internal organs & subQ recover
- Few days
- Full strength in a couple of weeks
How quick does fascia heal
- Slowly
- Couple weeks
- Full strength in a couple of months
- EX linea alba
How quick does skin heal
- Based on the quality of the apposition
- Seals w/in 1 day
- Primary incision heals in 10-14 days
- Full strength < 30 days
Better apposition = what
Decreasing healing time
What suture do you use for if what you are working on can not be removed from the body (organs or Sub Q)
Absorbable suture
What suture should you use if you can remove it (skin)
- Non-absorbable
- Should be inert to reduce inflammation
Inflammatory response is needed for what
Absorbable suture absorption
Increasing suture size increases what
The volume of knot
Increasing the volume of knot increases what
Inflammation
Increasing inflammation causes what
Weakened closure
Use the (largest/smallest) suture possible
Smallest