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Suturing Basics. Terren Trott. Objectives. Understand Basic Suturing Anatomy Indications for Suturing Materials and Preparation Suturing Techniques. Options to Sutures. Dermabond Superficial lacerations Facial lacerations Staples Commonly used on the scalp or huge lacerations
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Suturing Basics Terren Trott
Objectives • Understand Basic Suturing Anatomy • Indications for Suturing • Materials and Preparation • Suturing Techniques
Options to Sutures • Dermabond • Superficial lacerations • Facial lacerations • Staples • Commonly used on the scalp or huge lacerations • Faster, lower infection, reduced inflammation • Greater tensile strength • CI: face, joints, hands • Steristrips • Healing by Secondary Intention • If wound has been open for more than 6 hours
Suture Anatomy • Absorbable • Plain gut, FAST gut, vicryl, monocryl • Non-absorbable • Ethilon (Nylon) • Silk • Polypropylene (Prolene) • Monofilament VsPolyfilament
Suturing Preparation • Hemostasis • Anesthetic • Irrigation • Exploration • Draping • Suture selection
Hemostasis • Direct pressure and elevation • Blood Pressure Cuff • Lidocaine with Epinephrine • Figure-8 stitch
Anesthetic Anesthetic Pearls Epinephrine vasoconstricts Amides: have two ‘I’s in the name, esters have one ‘I’ Infiltrate with anesthetic slowly to reduce the burn Consider digital blocks Bicarb can be used to buffer lidocaine and reduce burning Withdraw on the syringe to make sure you’re not in a vessel
What does lidocaine toxicity look like? • Early symtoms • Headache, nausea/vomiting, AMS • Late Symptoms • Seizures • Cardiac Arrythmias: PEA, vtach, torsades • Tx: Sodium Bicarb, IV Lipids
Irrigation IRRIGATION IRRIGATION IRRIGATION IRRIGATION IRRIGATION IRRIGATION IRRIGATION
Exploration • Radiograph/Ultrasound for foreign bodies • Digital exploration of scalp lacerations for skull fractures • Tendon injuries must be examined through entire course of anatomical range • Missed foreign objects are a common source of Emergency Department litigation
Suture Technique Pearls • “Approximate, Don’t Strangulate” • For proper wound eversion, the needle should enter the dermis at 90 degrees • Exit the wound equidistant from the entry site • Reduce tension with deep sutures • No matter how small the laceration, use universal blood precautions • Antibiotics are no substitute for thorough irrigation and cleaning • Shaving hair is a relative contraindication • Use only the minimum number of sutures, excess sutures provide a nidus for infection • Grasp needle ¾ of distance from tip • Use the forceps to grasp under the dermis to prevent crush injury
Knot Tying Pearls • Knot throwing: throw as many knows as size suture material • 6-0 throw 6 knots • Knots are tied in opposite directions • Hand tie vs. instrument tie
Simple Interrupted • Most commonly used technique to close skin • Attempt to keep all knots on one side • For uncomplicated wound closure
Vertical Mattress • Large bite 1 – 1.5 cm from wound edge, cross equidistant to other wound edge. • Reverse the needle • Enter the dermalepi-dermal junction, 2 – 3mm from wound edge • Advantages: acts as both deep and superficial closure, reducing wound tension
Horizontal Mattress • All entry and exit points are equidistant • Advantages: distribution of tension across greater area, improved wound eversion
Corner Stitch • Advantages: approximation of corners and stellate lacerations without capillary compromise of the corner
Running • Advantages: Faster • Disadvantages: one compromised stitch compromises entire suture
Deep Sutures • To decrease tension and approximate tissues • Enter the tissue low and exit high so that the knot ties to the bottom
References • http://www.jpatrick.net/WND/woundcare.html