Wound closure and sutures Flashcards
what are swaged needles?
- no eye
- attached by crimping material into hollow end of needed
- less traumatic to tissues
- single use
what needle creates more trauma?
eyed needles
what are the three parts of a needle?
- point
- shank
- body
what are the various shapes of needles?
- round-bodied/taper point
- taper cut
- cutting
- spatulated
- blunt
what does appositional mean?
Skin edges directly apposed
what does everting mean?
skin edges are outward - eliminate dead space
what does inverting mean?
skin edges are inward
what are some common suture patterns?
- simple interrupted (0.5 cm apart)
- simple continuous
- ford interlocking (interrupted and continuous patterns)
- vertical mattress (interrupted)
- horizontal mattress (interrupted and continuous)
- cruciate mattress
- quilled
what is capillarity?
how will fluid move along a suture material
what is tissue drag?
the frictional force as a suture is pulled through tissues
what is chatter?
the lack of smoothness as a knot is tied
what is tensile strength?
the amount it can be support when stretched before it breaks
what are some categories of suture?
- absorbable
- non-absorbable
- natural monofilament
- natural multifilament
- synthetic monofilament
- synthetic multifilament
what is monofilament suture?
- less drag
- single fibre
- decreased capillary action
- high memory and less knot security
what is multifilament suture?
- higher capillarity
- creates more tissue drag
- less memory and better knot security
what is catgut?
- purified collagen taken from the small intestine of healthy ruminants (cattle, sheep, goats)
what is mersilk?
- from silkworm cocoon
- multifilament
- non-absorbable
- coated
- cardiology or ophthalmic
what does PDS stand for?
polydioxanole
what is PDS?
- monofilament
- high tensile strength
- less tissue reaction
- long term wound support
- absorbed in 180 days
what is poliglecaprone 25?
- monocryl
- absorbable
- monofilament
- synthetic
- high tensile strength
- memory free
- high knot security
- wound support 60 days, absorbed 180 days
what is polyglactin 910?
- vicryl
- multifilament
- absorbable
- synthetic
- good handling
- good knot security
what is vicryl rapide?
- short term wound support
- 10 days
- absorbed in 42 days
- sutures fall out after 10-14 days
what is polyglycolic acid?
- multifilament
- absorbable
- synthetic
- coated
- initially strong but loses strength
- wound support 14 days
- moderate tissue drag
what are polyesters?
- coated
- reduce drag
- reduce capillarity
what does USP stand for?
- united states pharmacopoeia
what are the two measures for sutures?
- metric
- USP
what are some alternatives to suturing?
- staples
- tissue glue
- butterfly/steri strips
what would you suture the skin with?
monofilament nylon or polypropylene
what would you suture the subcutis layer with?
-polydiozanone
-polyglactin
-polyglycolic acid
what would you suture the muscle layer with?
nylon
what are the three natural suture material?
catgut
linen
silk
what are the absorbable suture materials?
- catgut
- polyglactin 910
- polyglycolic acid
- polydioxanone
- polyglyconate
- poliglecaprone 25
what are the non-absorable suture materials?
- silk
- linen
- polypropylene
- polyamide
- polyesters
- stainless steel
what are the monofilament suture materials?
- polydioxanone
- polyglyconate
- poliglecaprone 25
- polypropylene
- polyamide
- stainless steel
what are the multifilament suture materials?
- catgut
- polyglactin 910
- polyglycolic acid
- silk
- linen
- polyesters
name the possible suture materials:
absorbable, monofilament, synthetic
- polydioxanone
- polyglyconate
- poliglecaprone 25
name the possible suture materials:
absorbable, multifilament, synthetic
- polyglactin 910
- polyglycolic acid
name the suture material:
non-absorbable, multifilament, synthetic
-polyester
