Lecture 4: Sutures and Materials Flashcards
Cat gut:
what is it used for
absorb level?
LA sx
quickly absorbable, loss of strength in 7 days
Vicryl
what is it used for?
absorb?
ligating vessels and eye sx
loss 50% in 21 days, absorbed at 70 days
monocryl
what is it used for?
absorb?
ligating small vessels, sub Q, intradermal, urinary bladder
loss 50% at 7 days (quick!), absorbed 90-120 days
PDS II
what is it used for?
absorb?
ligaments, abdominal wall, high tension
loss 50% in 5-6 weeks, gone in 6 months
Silk
what is it used for?
absorb?
ligating large vessels
considered non absorbable but does absorb in 2 years. loss 50% in 12 weeks
Nylon
what is it used for?
absorb?
skin closure especially in LA
almost never loses tensile strength
Prolene
what is it used for?
absorb?
good knot security, skin, cardiovascular, upper airways, tendons
inert, doesn’t degernate
polyester
what is it used for?
absorb?
orthopedics as implant
does not degrade
stainless steel
what is it used for?
absorb?
musculoskeletal sternotomy closure
very very strong
what suture material would you use for: skin
nylon, polyprolene, monocryl for intradermal
what suture material would you use for: subcutaneous
monocryl or PDS
what suture material would you use for: abdominal wall fascia
PDS
what suture material would you use for: tendons and ligs
prolene, sometimes PDS
what suture material would you use for: gastrointestinal
PDS II
what suture material would you use for: urinary or urogenital
monocryl or PDS
what suture material would you use for: large vessels
silk or staples
what suture material would you use for: small vessels
PDS, vicryl, monocryl
what is the difference between a swaged needle and an eyed needle
a swaged needle is attached to the suture and is single use, an eyed needle has an eye to thread suture through and these can be used multiple times
when would you want to use a tapered needle vs a cutting needle?
tapered needles are for delicate tissues where you want to be careful not to cut a hole in the tissue and cause trauma
cutting needles are for rougher tissue that need to be cut in order to suture
skin staples are fast but they _____ the tissue
evert
how do you use tissue glue properly?
there cannot be any tension when you use it
hat is the difference between connell and cushings patterns?
connell penetrates the lumen while cushing penetrates to the submucosa only
what is the Utrecht suture pattner?
basically lembert but on an oblique angle used for bovine uterine closure
for skin, what kind of needle would you want to use?
a cutting needle
for sub Q, what kind of needle do you want to use?
a tapered needle
for tendons, do you want to use a small suture or a big suture?
the biggest suture as possible!
for suturing tendons, what kind of needle do you want to use?
a taper needle because you don’t want to leave a hole!
for suturing the GI tract what kind of needle should you use?
a tapered one, it is delicate tissue!
