Suture Pearls Flashcards
When does Vicryl lose tensile strength?
10-20 days
Thus it is best for using in skin and not tendons.
Also known as polypropylene.
When does Dexon lose tensile strength?
10-20 days
Thus it is best for use in skin and not in tendons.
What is the general rule of thumb for when absorbable suture loses tensile strength?
Generally within 60 days
Naturally degrades by lysosomes and used for abdominal surgeries.
Think catgut and collagen filaments.
How is synthetic suture degraded in the body?
Generally degraded by hydrolysis.
Natural suture however is degraded by lysosomes.
When is vicryl (polyglactin 910) fully absorbed?
Loses tensile strength in 10-20 days.
fully hydrolyzed in 80 days.
Can be coated in polyglactin 370 and calcium stearate.
What is the trade name for polyglactin 910?
Vicryl
When is polydiaxone fully hydrolyzed?
Within 90 days.
It is typically used in plastics with over 70% of tensile strength at day 14.
When is polyglyconate fully hydrolyzed?
Also known as Maxon.
It is fully hydrolyzed in 180 days.
Loses 30% of its tensile strength in 2 weeks.
When is poliglecaprone (monocryl) fully hydrolyzed?
This is fully hydrolyzed in 90-120 days.
It only loses 20-30% of its tensile strength at 14 days.
What is the trade name for poliglecaprone?
It is also known as Monocryl.
Very well known for its strong tensile strength and its 90-120 day hydrolyzation date.
In general, non absorbabl suture holds its tensile strength for how long?
Generally longer than 60 days.
However it is highly tissue reactive.
What is the most commonly used synthetic suture in the case of contaminated wounds or for partial closures?
Nylon, also known as ethilon and surgilon.
It is elastic in nature with a high tensile strength and possessing memory.
HOWEVER Polypropylene (prolene and surgilene) can be used in these cases as well.
What type of synthetic suture is utilized when strong aposition of tissue is needed in tough tissues?
Think tendons/anchors specifically.
Polyester (ethibond, Dacron)
What suture should you be using for tendon repairs?
Polyester!
Also known as ethibond and dacron.
Which two types of suture can be used in contaminated wounds and plastics?
Nylon and polypropylene (prolene,surgilene)
In which cases will stainless steel sutures corrode?
Typically corodes under stress points.
Used in bone fixation, tendon repair, and retention sutures.
Which part of the needle is attached to the suture?
The swage.
Note that the Swaged type of needle end is the most commonly used.
what are the two most common needle bodies used in podiatry?
1/2 circle curved
3/8 circle curved.
What type of needle tip would be used for friable/weakened tissue?
Blunt point
What needle point type would be used for paratenon, tendon sheath, or subcutaneous repair?
Tapered needle tip.
