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EM TopicsProcedural & diagnostic ED skills

EM · Procedural & diagnostic ED skills

Wound closure and suturing techniques

Also known as Suturing · Suture techniques · Wound closure · Tissue adhesive · Dermabond · Steri-strips · Subcuticular suture · Mattress suture

Wound closure and suturing techniques in the ED — the suture material choice (absorbable: catgut, Vicryl polyglactin, Monocryl poliglecaprone; versus non-absorbable: nylon Ethilon, polypropylene Prolene), the gauge-by-site rule (5-0 for the face, 4-0 for the body, 3-0 for the scalp and extremity), the five core techniques (simple interrupted, continuous running, vertical mattress, horizontal mattress, subcuticular intradermal) with the indication and the pitfall of each, the tissue adhesive (2-octyl cyanoacrylate, Dermabond) and adhesive strips (Steri-Strips) for the low-tension low-risk wound, the suture removal schedule (face 5 days, scalp 7 to 10, body 7 to 10, joints 14), the local anaesthetic doses for painless closure, and the recognition of the wound that must heal by secondary intention (bites, punctures, infected and heavily contaminated wounds). ACEM-primary, globally tagged.

medium11 referencesUpdated 26 July 202616 min readVerification in progress

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ACEMFRCEMABEMFRCPCCCFPEMEBEEM

Red flags

  • Do not suture a wound that should heal by secondary intention — mammalian bites, puncture wounds, infected wounds and heavily contaminated crush wounds are cleaned and left open; closing them traps inoculated bacteria and drives deep infection
  • Match the suture gauge to the site — 5-0 for the face, 4-0 for the body, 3-0 for scalp and extremity; too fine a suture under tension cuts through tissue and the wound dehisces
  • Evert the wound edges with every bite — a flat or inverted closure heals to a depressed scar; vertical and horizontal mattress sutures are the techniques that guarantee eversion under tension
  • Remove face sutures at 5 days to prevent cross-hatch (train-track) scarring in a cosmetically critical site; leave joint sutures 14 days because tension across a moving joint delays gaining strength
  • Document distal neurovascular and tendon function BEFORE injecting local anaesthetic — anaesthesia abolishes the chance to re-test and a missed digital nerve or tendon injury is the medicolegal trap of every laceration repair
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Related topics

  • Wound assessment and management
  • Local anaesthesia and topical agents
  • Procedural sedation in the emergency department
  • Consent, capacity and the medico-legal framework in the emergency department
  • Burn management in the emergency department
  • Paediatric trauma — the modified approach
Study tools

Your progress

Saved on this device.

Practise this topic8 MCQs with explanations

Target exams

ACEMFRCEMABEMFRCPCCCFPEMEBEEM

Red flags

  • Do not suture a wound that should heal by secondary intention — mammalian bites, puncture wounds, infected wounds and heavily contaminated crush wounds are cleaned and left open; closing them traps inoculated bacteria and drives deep infection
  • Match the suture gauge to the site — 5-0 for the face, 4-0 for the body, 3-0 for scalp and extremity; too fine a suture under tension cuts through tissue and the wound dehisces
  • Evert the wound edges with every bite — a flat or inverted closure heals to a depressed scar; vertical and horizontal mattress sutures are the techniques that guarantee eversion under tension
  • Remove face sutures at 5 days to prevent cross-hatch (train-track) scarring in a cosmetically critical site; leave joint sutures 14 days because tension across a moving joint delays gaining strength
  • Document distal neurovascular and tendon function BEFORE injecting local anaesthetic — anaesthesia abolishes the chance to re-test and a missed digital nerve or tendon injury is the medicolegal trap of every laceration repair
The one-line answer

Wound closure apposes clean, bleeding, slightly everted edges so the four phases of healing — haemostasis, inflammation, proliferation, remodelling — run across a narrow gap. Hold three decisions at once: which material (non-absorbable nylon or polypropylene on the skin; absorbable Vicryl in the deep layer and Monocryl subcuticular), which gauge by site (5-0 face, 4-0 body, 3-0 scalp and extremity), and which technique (simple interrupted by default; vertical mattress for tension; subcuticular and tissue adhesive for low-tension cosmetic wounds). The rule that protects the patient: never close the wound that should heal by secondary intention — the bite, the puncture, the infected wound.[1]

Meet the patient

A 24-year-old man arrives at 2am with a 4 cm shin laceration down to fascia after a fall on concrete, the edges retracted 5 mm and the skin bevelled and rolling inward. The tendon fires through its full range, the distal pulses are present, and the wound is clean and less than an hour old.[1]

Before you reach for the suture pack, answer three questions out loud: can this wound be closed at all, what will hold it under tension, and what scar will the patient live with. Hold those three and every section below slots into place.[1]

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References11ShowHide
  1. [1]Elfar A, Ahmed Osman Mohamed A, Mahdi A, et al. Suture Techniques for Traumatic Wound Closure in the Emergency Department: A Systematic Review of Cosmetic, Functional, and Infection-Related Outcomes. Cureus, 2025.PMID 40792329
  2. [2]Luck R, Tredway T, Gerard J, et al. Comparison of cosmetic outcomes of absorbable versus nonabsorbable sutures in pediatric facial lacerations. Pediatr Emerg Care, 2013.PMID 23714755
  3. [3]Luck RP, Flood R, Eyal D, et al. Cosmetic outcomes of absorbable versus nonabsorbable sutures in pediatric facial lacerations. Pediatr Emerg Care, 2008.PMID 18347489
  4. [4]Wong EM, Rainer TH, Ng YC, et al. Cost-effectiveness of Dermabond versus sutures for lacerated wound closure: a randomised controlled trial. Hong Kong Med J, 2011.PMID 22147351
  5. [5]Barton MS, Chaumet MSG, Hayes J, et al. A Randomized Controlled Comparison of Guardian-Perceived Cosmetic Outcome of Simple Lacerations Repaired With Either Dermabond, Steri-Strips, or Absorbable Sutures. Pediatr Emerg Care, 2024.PMID 39141836
  6. [6]Edwards S, Parkinson L Is Fixing Pediatric Nail Bed Injuries With Medical Adhesives as Effective as Suturing?: A Review of the Literature. Pediatr Emerg Care, 2019.PMID 27977531
  7. [7]Kazzi MG, Silverberg M Pediatric tongue laceration repair using 2-octyl cyanoacrylate (dermabond(®)). J Emerg Med, 2013.PMID 23827167
  8. [8]Singer AJ, Chale S, Giardano P, et al. Evaluation of a novel wound closure device: a multicenter randomized controlled trial. Acad Emerg Med, 2011.PMID 21996071
  9. [9]Farion KJ, Osmond MH, Hartling L, et al. Tissue adhesives for traumatic lacerations: a systematic review of randomized controlled trials. Acad Emerg Med, 2003.PMID 12574007
  10. [10]Quinn JV, Polevoi SK, Kohn MA Traumatic lacerations: what are the risks for infection and has the 'golden period' of laceration care disappeared? Emerg Med J, 2014.PMID 23314208
  11. [11]Ladipo-Ajayi OA, Lawal TA, Ogundoyin OO, et al. Steri-strip(TM) versus subcuticular skin closure of paediatric groin wounds: A randomised study. Afr J Paediatr Surg, 2022.PMID 35775513

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Related topics

  • Wound assessment and management
  • Local anaesthesia and topical agents
  • Procedural sedation in the emergency department
  • Consent, capacity and the medico-legal framework in the emergency department
  • Burn management in the emergency department
  • Paediatric trauma — the modified approach