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Large animal wounds

Wound management overview

Wound evaluation overview – podcast (8 min)

Approximately 20% of after hours equine visits in the UK were due to wounds. Horses are accident prone and there is not much owners  can do to prevent injury. [However, shipping boots and horse helmets do probably help more than bubble wrap.]

horse in bubble wrap over all of its body except the head

The most common horse wounds are limb degloving injuries (the horse kicks through something and the skin is pulled away as the limb is pulled back through the glass/wood/metal) and puncture wounds.

Puncture wounds are easy to miss and can immediately penetrate deeper structures and lead to life threatening infection. Owners may consider them unimportant and not call you.

puncture wound on the medial aspect of the fetlock; this is right over the joint

Degloving injuries can readily traumatize joints, bones, tendons, ligaments and vessels due to the limited soft tissue covering of horse limbs. Skin injury can prolong healing for months. Many of these injuries are manageable but require extensive time and money. Giving clients appropriate information from the beginning helps everyone fully understand the treatment needs and make informed decisions.

typical degloving wound affecting the dorsum of the cannon bone. The skin does not reach to close and the underlying tissues are exposed from midcannon bone to just at the level of the fetlock

Wounds to the thorax, shoulder and abdomen usually occur as animals run through fences, gates and in wooded areas. Solid structures tear skin and muscle as the animal passes through. Occasionally bony prominences are also removed form the parent bone (eg point of hip).

skin flap over hip area; the flap is being lifted up by a gloved hand. The underlying muscles are visible but no bone.

Critical structure damage

Damage to body cavities, joints or tendon sheaths, primary vascular supply, bones (fractures) and flexor tendons can be life-threatening. In general, these need to be identified and the horse either euthanized or sent to a referral center after appropriate stabilization.

Common complications

Wounds on the head, neck, upper limbs and torso usually heal rapidly and well. Occasionally the wounds need to be kept open to ensure they heal from the inside out; if drainage is prevented by early closure, abscesses may occur. Ventral drainage is key. Packing with gauze, honey or sugar can also help encourage appropriate wound healing.Lower limb wounds frequently have issues even if the damage is not life or performance threatening. Applicable complications should be discussed with the client as these will add costs and time:

  • Proud flesh management
  • Skin grafting
  • Sequestration management
  • Splinting for extensor tendon damage
  • Bandaging
  • Rehabilitation needs for muscle damage
  • Stall rest

Resources

Wound Management: Wounds with Special Challenges, VCNA Vol.34(3), pp.511-538, 2018

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License

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Large Animal Surgery - Supplemental Notes Copyright © by Erin Malone, DVM, PhD is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.

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