Download Basic Wound Closure - Surgery - Lecture Slides and more Slides General Surgery in PDF only on Docsity! Basic Wound Closure & Knot Tying Primer Docsity.com Objectives • Provide basic information on commonly used suture materials • Review general principles of wound closure • Provide a general overview of basic surgical knot tying Docsity.com Non-absorbable Suture • Not degraded, permanent • Examples: – Prolene – Nylon – Stainless steel – Silk* (*not a truly permanent material; known to be broken down over a prolonged period of time—years) Docsity.com Natural Suture • Biological origin • Cause intense inflammatory reaction • Examples: – “Catgut” – purified collagen fibers from intestine of healthy sheep or cows – Chromic – coated “catgut” – Silk Docsity.com Synthetic Suture • Synthetic polymers • Do not cause intense inflammatory reaction • Examples: – Vicryl – Monocryl – PDS – Prolene – Nylon Docsity.com Suture Degradation Suture Material Method of Degradation Time to Degradation “Catgut” Proteolytic enzymes Days Vicryl, Monocryl Hydrolysis Weeks to months PDS Hydrolysis Months Docsity.com Suture Size • Sized according to diameter with “0” as reference size • Numbers alone indicate progressively larger sutures (“1”, “2”, etc) • Numbers followed by a “0” indicate progressively smaller sutures (“2-0”, “4-0”, etc) Smaller -------------------------------------Larger .....”3-0”...”2-0”...”1-0”...”0”...”1”...”2”...”3”..... Docsity.com Needles – Classified according to shape and type of point • Curved or straight (Keith needle) • Taper point, cutting, or reverse cutting Docsity.com Needles • Cutting needle – Triangular body – Sharp edge toward inner circumference – Used to suture skin or tough tissue Docsity.com Wound Closure • Basic suturing techniques: – Simple sutures – Mattress sutures – Subcuticular sutures • Goal: “approximate, not strangulate” Docsity.com Simple Sutures • Simple interrupted stitch – Single stitches, individually knotted (keep all knots on one side of wound) – Used for uncomplicated laceration repair and wound closure Docsity.com Subcuticular Sutures • Usually a running stitch, but can be interrupted • Intradermal horizontal bites • Allow suture to remain for a longer period of time without development of crosshatch scarring Docsity.com Steri-strips • Sterile adhesive tapes • Available in different widths • Frequently used with subcuticular sutures • Used following staple or suture removal • Can be used for delayed closure Docsity.com Staples • Rapid closure of wound • Easy to apply • Evert tissue when placed properly Docsity.com
