3-26-26

Introduction to Soft Tissue Injuries

  • Soft tissue injuries involve damage to the layers of tissue that comprise the skin and underlying structures.

  • The layers of soft tissue include:

    • Epidermis: The outer layer of skin, visible and protective.

    • Dermis: Lies beneath the epidermis, approximately seven times thicker; contains nerves, blood vessels, sweat glands, etc.

    • Hypodermis: A layer of subcutaneous fat located above the muscle tissue.

Types of Soft Tissue Injuries

  • Soft tissue injuries can affect:

    • Only the outer layer of skin (epidermis).

    • All layers of skin (including hypodermis and muscle).

  • Most injuries are minor but may include extreme cases that are life-threatening.

Wounds

  • A wound is defined as a physical injury involving soft tissue.

  • Types of wounds:

    • Open wounds: Break in the skin.

    • Closed wounds: No break in the skin, but damage is still present.

  • Common closed wound: Bruise (contusion).

Closed Wounds

  • Contusion (bruise):

    • Caused by blunt force, leading to damage in soft tissue layers and blood vessels beneath the skin.

    • Results in discoloration and swelling; severity varies based on the extent of injury.

  • Signs of Severe Injury:

    • Altered consciousness.

    • Rapid, weak pulse.

    • Excessive thirst.

    • Tender, swollen abdomen, or specific injuries resulting in blue or pale extremities.

    • Vomiting or coughing up blood.

  • Care for Closed Wounds:

    • Most closed wounds require minimal care.

    • Application of cold packs (ice/water mixture) for pain and swelling control:

    • Apply for 20 minutes, use a thin towel as a barrier.

    • If ice-water mixture not available, utilize frozen vegetables or chemical cold packs.

    • Elevate the injured part unless it causes pain.

    • Seek immediate medical attention under specific circumstances:

    • Severe pain.

    • Inability to move a body part.

    • Suspected serious damage or signs of shock.

Open Wounds

  • An open wound varies from minor scrapes to severe penetrative injuries, with severity and bleeding contingent on injury type and individual's health:

    • Types of open wounds:

    • Abrasions: Superficial scrapes, exposure of nerve endings leading to pain but minimal bleeding, common in friction injuries.

      • They require thorough cleaning to prevent infection.

    • Lacerations: Cuts with jagged or smooth edges from sharp objects or blunt trauma, can lead to heavy bleeding.

    • Avulsions: Serious injuries where skin and underlying tissue are torn away; may involve significant bleeding.

    • Amputations: Severed body parts with potentially slowed bleeding due to constriction of blood vessels; reattachment may be possible.

    • Puncture wounds: Skin is pierced by sharp objects, may be minor on the surface, but risk of serious internal bleeding exists.

      • Risk of infection is notable; can be embedded.

    • Crush wounds: High-pressure injury that can be open or closed, resulting in possible serious underlying damage including compartment syndrome.

Care for Open Wounds

  • General care:

    • Open wounds typically need dressings to absorb blood, prevent infection, and control bleeding.

    • Dressings must be sterile:

    • Occlusive dressings: Prevent air/water exposure to reduce infection risk, may be improvised (like plastic wrap).

    • Bandages:

    • Hold dressings in place, apply pressure, and protect against dirt.

    • Include pressure bandages to control severe bleeding.

    • Proper application involves checking circulation regularly.

  • For Minor Wounds (like abrasions):

    • Control bleeding through direct pressure.

    • Clean thoroughly with soap and water; dry with gauze pad and cover with dressing.

    • Consider antibiotic ointment.

Severe Open Wounds

  • Signs of severe open wound:

    • Heavy bleeding, deep tissue destruction, visible/present impalement.

  • Management steps:

    • Call 911, use gloves, apply pressure and dressings.

    • If blood soaks through, apply additional pressure and do not remove original bandage (to preserve clot).

  • For amputations:

    • Wrap the severed part in sterile gauze and keep cool; ensure transport with the patient.

  • Embedded objects:

    • Do not remove unless they obstruct CPR; stabilize with dressings.

    • Press to control bleeding and maintain bandaging over the object.

Infection Concerns

  • Any skin break can lead to infection risk; monitor for:

    • Signs of infection:

    • Increased pain, swelling, redness, warmth, fever, or pus discharge.

    • Tetanus concerns:

    • Tetanus prevention is critical, requiring a booster every 10 years after dirty/wound exposures.

  • Seek medical attention for deep or potentially infected wounds.

Summary of Care for Wounds

  1. Control pain, control bleeding, minimize infection risk.

  2. For minor wounds:

    • Stop bleeding, clean, cover, and maintain cleanliness.

  3. In emergencies, do not hesitate to call 911, monitor vital signs, and keep patient comfortable.

Types of Wounds Recap

Closed Wounds

  • Bruises, hematomas, blisters, frostbite.

Open Wounds

  • Abrasions, lacerations, incisions, skin tears, puncture wounds, penetrating wounds, avulsions, burns, pressure injuries, and chronic wounds (venous/arterial ulcers).

  • Varying degrees of burns:

    • 1st Degree: Superficial, heals quickly.

    • 2nd Degree: Partial thickness, might need grafting.

    • 3rd Degree: Full thickness, severe with grafting needed.

    • 4th Degree: Extends to muscle/bone, very serious.

Questions and Closing

  • Participants are encouraged to ask questions or clarify details.

  • Follow-up class reschedule noted for next Tuesday due to a meeting.