Wounds/Burns Flashcards
Wound Closure
1. Primary
2. Secondary
3. Delayed primary
- Primary—Wound is closed with sutures.
- Secondary—Wound is left open and allowed to close on its own.
- Delayed primary—Wound is cleaned, debrided, and observed 4 to 5 days before suturing it closed.
Wound Healing Phases
- inflammatory
- proliferative
- remodeling
Inflammatory phase
Wound healing
- process includes clotting and vasoconstriction, white blood cell migration, and release of histamines and prostaglandins that cause vasodilation and increased tissue permeability.
- The acute phase lasts 24–48 hours to 7 days, and the **subacute phase lasts 7 to 14 days. Local signs include redness, swelling, heat, and pain;** systemic signs are fever and leukocytosis.
Proliferative phase
Wound healing
- (also called the fibroplastic, granulation, or epithelialization process), lactic acid and ascorbic acid stimulate fibroblasts to synthesize collagen, and cross linkage of collagen increases the tensile strength of repaired skin to 80%.
- Epithelialization resurfaces the wound, tissue granulation forms new collagen and blood vessels, and myofibroblasts connect to the wound margins.
- Wound contraction lasts 5 days to 2–3 weeks. Linear wounds heal quickly, rectangular wounds moderately quickly, and circular wounds the most slowly.
Remodeling Phase
Wound healing, splint, modalities
- scar tissue first consists of randomly arranged collagen fibers, and as the scar matures, the collagen is broken down and remodeled. The scar is then more elastic, smoother, and stronger.
- lasts 2 weeks to 1–2 years. If collagen synthesis exceeds collagen lysis, hypertrophic and keloid scars can form.
- Tension theory posits that wearing pressure garments helps collagen fibers realign in a linear and lateral orientation.
- Dynamic splinting, serial casting, continuous passive motion, positional stretching, NMES, and silastic gel pads can help decrease hypertrophic scarring.
Name the 4 classification of burns.
- Superficial (1st-degree) burn
- Superficial partial-thickness (2nd-degree) burn
- Deep partial-thickness (deep 2nd-degree) burn
- Full-thickness (3rd degree) burn
- Subdermal burn
Superficial burn
Location, symptoms, healing time
- Involves the superficial epidermis ONLY.
- Min-Mod pain; no blistering, min. erythema.
- Healing time: 3–7 days.
Superficial partial-thickness burn
Location, symptoms, healing time
- Involves the epidermis and upper dermis layers.
- Pain is significant; wet blistering and erythema are present.
- Healing time: 1–3 weeks.
Deep partial-thickness (deep second-degree) burn
Location, symptoms, healing time
- Involves the epidermis and the deep dermis layers, hair follicles, and sweat glands.
- Pain is severe, even to light touch.
- Erythema is present, with or without blisters.
- Burn has a high risk of turning into a full-thickness burn because of infection; grafting may be considered to prevent wound infection.
- Client may have impairment of sensation.
- Potential for hypertrophic scar is high.
- Healing time: varies from 3–5 weeks.
Full-thickness (third-degree) burn
Location, symptoms, treatment, healing time
- Involves the epidermis and dermis, hair follicles, sweat glands, and nerve endings.
- Burn is pain free, no sensation to light touch.
- Burn is pale and nonblanching.
- Requires skin graft.
- Potential for hypertrophic scar is extremely high.
Subdermal burn
Location, symptoms, healing time
- Full-thickness burn with damage to underlying tissue such as fat, muscles, and bone.
- Charring is present; may have exposed fat, tendons, or muscles.
- If the burn is electrical, destruction of nerve along the pathway is present.
- Peripheral nerve damage is significant.
- Requires surgical intervention for wound closure or amputation.
- Potential for hypertrophic scar is extremely high.
Emergent phase
Burn
0-72 hrs after injury
Medical management:
-sustaining life, controlling infection, and managining pain.
OT Eval: observation of body parts affected by burn; PLOF
OT intervention: splinting in antideformity positions
1. intrinsic plus for hands
2. opposite client’s posture
3. generally in extension for neck, elbows, and knees
4. shoulder in abduction and hip in extension
5. anti-frog leg & anti-foot drop for LE
Xenografts
bovine (cattle) skin, processed pig skin
Biologic dressing for wounds
Allograft
human cadaver skin
Biologic dressing for wounds
Acute phase
Burn
72 hrs after injury/until wound is closed (days/months)
OT FOCUS: preserve ROM, functional strength, build cardiop. endurance, decrease edema
Medical Management: infection control (non-surg/surg), pain management, nutrition/hydration (high protein diet for wound healing), and cardiopulmonary stability.
OT Eval: ADls, psychosocial, communication, cog., ROM, strength, and pain
OT Intervention:
1. splinting/positioning (anti-deformity position)
2. edema (elevation, AROM ex, if allowed, elastic bandage/bulk wound dressing)
3. ADL (self-care) with AE (compression wrapping before walking/standing/prolonged sitting)
4. ROM program as tolerated. NO PASSIVE/ACTIVE ROM with exposed tendons/recent grafts (wait 5-7 days)
5. pain management: visual imagery, relaxation, schedule around meds
6. education (burn stages, importance of ADL/Ex, pain management tech)