Dr. Abdulmonem Al-Hayani MBChB, DipFMS(Lon), PhD(Aber) Wounds and Injuries Dr. Abdulmonem Al-Hayani MBChB, DipFMS(Lon), PhD(Aber) 9/14/2019 Dr. Al-Hayani

Outcome=Aims=Goals Why this lecture? What is wounds? Classifications of wounds? Blunt force injuries? Sharp force injuries? 9/14/2019 Dr. Al-Hayani

As GP, You Will See Hundreds of Wounds Why this lecture? As GP, You Will See Hundreds of Wounds 9/14/2019 Dr. Al-Hayani

Definition of Wounds Damage to any parts of the body due to application of mechanical force 9/14/2019 Dr. Al-Hayani

Classifications of Wounds Blunt Force Sharp Force 9/14/2019 Dr. Al-Hayani

Blunt Force Injuries Blunt? Force depends on: Mass of weapon Velocity of impact 9/14/2019 Dr. Al-Hayani

Blunt Force Injuries Severity of impact depends on: Force applied Velocity Surface area Site of body Diseases 9/14/2019 Dr. Al-Hayani

Blunt Force Injuries Types? Abrasion Bruises Lacerations Fractures 9/14/2019 Dr. Al-Hayani

Abrasions What? scraping and removal of superficial layers of skin Causes? Blunt objects Ligature Scraping against surfaces 9/14/2019 Dr. Al-Hayani

Commonest cause : Fingernail Scratches 9/14/2019 Dr. Al-Hayani

Abrasions Medicolegal significance: Indicate severity Lies at point of impact Skin tag may indicate direction of scraping Antemortem or Postmortem 9/14/2019 Dr. Al-Hayani

Bruises What? Escape of blood into tissue of living person due to rupture of blood vessels Causes? Direct blow Impact with hard surfaces Punching, kicking Spread of blood from internal injuries 9/14/2019 Dr. Al-Hayani

Bruises Medicolegal significance: Evidence of application of blunt force Mainly indicate antemortem injuries Can indicate types of weapons e.g. shoes, tyre etc… 9/14/2019 Dr. Al-Hayani

Please differentiate from: Hypostasis 9/14/2019 Dr. Al-Hayani

Lacerations What? Tearing or splitting of tissues due to crushing force Causes? Impact with surface Crushing injuries Deceleration injuries 9/14/2019 Dr. Al-Hayani

Sharp Force Injuries Always fatal Always by knifes Characterization of knifes: length, width and thickness of blade Type of blade Degree of taper Sharpness 9/14/2019 Dr. Al-Hayani

Sharp Force Injuries Characterization of stab wounds depends: Type of weapon Sharpness Movement Depth of trust Direction of impact 9/14/2019 Dr. Al-Hayani

Sharp Force Injuries Examination of wounds: Number of wounds Sites Defensive injuries Fatal wounds 9/14/2019 Dr. Al-Hayani

Do not forget to check: Clothes 9/14/2019 Dr. Al-Hayani

Sharp Force Injuries Accidental? Suicide? Or Homicide? Accidental: uncommon, odd sites Suicidal: left site of chest, must be accessible, often shallow, no defense wounds, tentative wounds Homicide: any site, often haphazard, defensive wounds present 9/14/2019 Dr. Al-Hayani

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Summary 9/14/2019 Dr. Al-Hayani

Do Not Forget Medicolegal Aspects of Wounds Key Lesson Do Not Forget Medicolegal Aspects of Wounds 9/14/2019 Dr. Al-Hayani

Questions & Comments 9/14/2019 Dr. Al-Hayani