Sutures Flashcards
what are the advantages of braided sutures
increased tensile strength,
improved handling and knot tying properties
decreased fraying at cut ends
T/F Braided sutures have increased propensity to retain microorganisms
T
older sutures included suture coatings with antibacterial and antitumor qualities
F, these are new innovations
braided sutures are less likely to harbour bacteria
F, more likely
tensile strength is unchanged by wetness or age of sutures
F, decreased by physical factors including wetness or increased age of sutures
Chromic gut treated with chromate salts increase the rate of absorption in tissue
false DECREASE
sutures made of natural materials (gut and silk) are degraded by proteolysis
T
sutures made of synthetic sutures are degraded by hydrolysis
T
plain surgical gut loses most of its tensile strength in 2-3 days
false 7-10 days
staples p.200 –> 80% faster than suture placement
T
staples offer excellent wound eversion
T
staples have. DECREASED risk of tissue strangulation, reactivity and infection than sutures
T
staples are used more commonly on the limbs
false, trunk
staples have greater risk of partial flap necrosis
T
tissue adhesives are composed of cyanoacrylate compounds
T
Dermabond is cosmetically inferior to the epidermal sutures in the linear repair of wounds on the face
F , equivalent
horizontal half buried mattress stitch uses non absorbable stitch (2015)
T
Sutures more likely to extrude or “spit” from surface if placed too high in the dermis
T
Buried vertical mattress allows prolonged wound eversion
T
running subcuticular sutures are placed in succession on alternating wound edges
T
purse string reduces size of defect by 20-30%
F 53-70%
purse string have good result for small circular wounds on the face and the neck (2019)
T
Pulley sutures allow closures of wound under tension
T
Pulley sutures cannot close wounds on scalp
F, they can
