Populations and Risk Factors
- Children under 5 and adults over 65 are most vulnerable to severe burn outcomes — children from scalds (leading cause of pediatric burns), elderly from diminished reflexes and thinner skin
- Occupational exposure: firefighters, industrial workers, electricians, chemical handlers
- Individuals with impaired sensation (diabetic neuropathy, peripheral neuropathy) who cannot detect heat injury early
- Prior burn injury increases scar tissue vulnerability to re-injury
- Smokers and individuals with compromised circulation have delayed wound healing
- Immunocompromised individuals are at higher infection risk during the healing phase
Causes and Pathophysiology
Burn Mechanisms
- Thermal: most common; dry heat (flames, contact with hot surfaces), wet heat (scalds from steam or hot liquids), extreme cold (frostbite — tissue damage from ice crystal formation)
- Chemical: strong acids, alkalis, or organic compounds; alkali burns are more dangerous than acid burns because they cause liquefactive necrosis that penetrates deeper
- Electrical: current passes through the body following the path of least resistance (nerves, blood vessels); external burns may appear minor while internal tissue destruction (muscle, cardiac tissue) is extensive; look for entry and exit wounds
- Radiation: UV radiation (sunburn), ionizing radiation (radiation therapy)
Burn Depth Classification
| Classification | Layers Involved | Appearance | Sensation | Healing |
|---|---|---|---|---|
| Superficial (1st degree) | Epidermis only | Redness (erythema), dry, no blisters | Painful — nerve endings intact | 3–5 days; no scarring |
| Superficial partial-thickness (2nd degree) | Epidermis + upper dermis | Redness, blisters (bullae), weeping, pink moist wound bed | Very painful — exposed nerve endings | 7–21 days; minimal scarring if no infection |
| Deep partial-thickness (2nd degree) | Epidermis + deep dermis | Pale, mottled, may have blisters; reduced capillary refill | Reduced sensation — deeper nerve damage | 3–8 weeks; significant scarring; may require grafting |
| Full-thickness (3rd degree) | Entire dermis + subcutaneous | Waxy white, leathery, or charred; no blisters | Insensate — nerve endings destroyed | Cannot self-heal (no dermal appendages); requires grafting |
| 4th degree | Through subcutaneous to muscle, tendon, bone | Charred, blackened, exposed deep structures | No sensation | Requires extensive surgical intervention |
Rule of Nines (Adult TBSA Estimation)
- Head and neck: 9%
- Each upper extremity: 9% (total 18%)
- Anterior trunk: 18%
- Posterior trunk: 18%
- Each lower extremity: 18% (total 36%)
- Perineum: 1%
- Burns exceeding 15% TBSA trigger systemic inflammatory response: massive fluid shift from intravascular to interstitial space causes hypovolemic shock; protein loss through wound surface; hypermetabolism increases caloric needs by 50–100%
Scar Formation
- Normal wound healing produces a flat, pliable scar that matures over 6–18 months.
- Hypertrophic scars develop when excessive collagen is deposited within the boundaries of the original wound — raised, red, firm, but confined to the wound margins; common in deep partial-thickness and grafted burns; tend to improve over 1–2 years.
- Keloid scars extend beyond the original wound boundaries due to uncontrolled fibroblast activity — raised, firm, and progressive; do not regress spontaneously; have a genetic predisposition (more common in individuals of African, Asian, and Hispanic descent).
- Scar contracture occurs when scar tissue shortens across a joint line, restricting ROM — this is the primary rehabilitation concern; develops when burns cross flexion creases (antecubital fossa, neck, axilla, popliteal fossa).
Why This Matters for Palpation and Treatment
- Superficial burns have intact nerve endings and are extremely pain-sensitive — gentle approaches only.
- Full-thickness burns are insensate — patients cannot provide accurate feedback about pressure, creating risk of overtreatment.
- The transition zone between burned and unburned tissue is often the most sensitive area.
- Hypertrophic scar tissue is dense, inelastic, and tethered to underlying fascia — these are the primary MT treatment targets in chronic burn rehabilitation.
Signs and Symptoms
Acute Burns
- Redness, blistering, or charring depending on depth
- Pain (superficial/partial-thickness) or numbness (full-thickness)
- Edema surrounding the burn site
- Hoarseness, cough, or labored breathing if smoke inhalation occurred — red flag for airway compromise
- Burns exceeding 15% TBSA: tachycardia, hypotension, decreased urine output (hypovolemic shock signs)
Chronic Burn Scarring
- Hypertrophic scarring — raised, red/purple, firm, pruritic (itchy)
- Keloid formation — scar extending beyond original wound margins
- Scar contracture — visible tightening across joints with ROM limitation
- Altered skin texture — smooth, shiny, hairless over grafted areas
- Hypersensitivity or hypesthesia in and around scar tissue
- Pruritis (itching) — often severe and persistent; a primary quality-of-life complaint
Assessment Profile
Subjective Presentation
- Chief complaint: acute burns — "I burned myself" with description of mechanism and time since injury; chronic — "my scar is tight and I can't straighten my arm/neck/leg" or "my scars itch constantly"
- Pain quality: acute — burning, stinging (superficial); dull ache (deep partial-thickness); no pain at burn site (full-thickness, but surrounding tissue is painful); chronic — tightness, pulling sensation across scar contractures; neuropathic pain (burning, shooting) in areas of nerve regeneration; severe pruritis
- Onset: acute — known event with clear mechanism; chronic scarring develops over weeks to months post-burn; contractures progress as scar matures and shortens
- Aggravating factors: acute — any contact or movement; chronic — movement that stretches scar tissue across joints; temperature extremes (burned skin has impaired thermoregulation); dry environments worsen pruritis
- Easing factors: acute — cooling (first aid: cool running water for 20 minutes); chronic — moisturizing reduces pruritis; gentle sustained stretch reduces contracture tightness temporarily; pressure garments reduce hypertrophic scarring
- Red flags: Burns with hoarseness, stridor, or facial/oral burns — suspect inhalation injury; emergency referral. Burns exceeding 15% TBSA — emergency medical care for fluid resuscitation. Circumferential full-thickness burns of a limb — emergent escharotomy required to prevent compartment syndrome. Signs of wound infection (increasing pain, purulent drainage, fever, red streaking toward lymph nodes — lymphangitis) — medical referral.
Observation
- Local inspection: assess burn depth by appearance (erythema, blisters, waxy white, charred); in chronic scars, assess color (red/vascular = immature and still changing; white/pale = mature and stable), texture (smooth, raised, keloid), and location relative to joint lines; note grafted areas (mesh pattern, smooth donor site, different skin texture/color); presence of pressure garments
- Posture: compensatory posture to protect burned areas — shoulder protraction and internal rotation if anterior chest/axilla involved; cervical flexion if anterior neck involved; overall guarding pattern reflects contracture locations
- Gait: antalgic gait if lower extremity burns or contractures present; reduced stride length from hip or knee flexion contracture; foot drop if ankle/dorsal foot contracture present
Palpation
- Tone: muscles underlying burn scars may be hypertonic from chronic guarding; muscles crossing contracted joints are adaptively shortened; compensatory hypertonicity in antagonist muscles working against contracture pull
- Tenderness: acute burns are exquisitely tender (superficial/partial-thickness) or insensate (full-thickness); chronic hypertrophic scars are often tender and hypersensitive; grafted areas may have altered sensation (hypersensitive at margins, hyposensitive centrally); transition zones between scarred and normal tissue are frequently the most sensitive
- Temperature: acute burns are warm (inflammation); chronic mature scars may be cooler than surrounding skin (reduced vascularity); grafted areas may have altered thermoregulation; assess sensation before applying any thermal modality — burned/grafted skin cannot provide reliable feedback
- Tissue quality: hypertrophic scars palpate as dense, raised, inelastic tissue with poor fascial glide; tethered to underlying fascia or muscle; scar tissue does not sweat normally (loss of sweat glands); grafted tissue has altered elasticity and is often thinner than normal skin; assess scar mobility in all directions — restricted directions indicate adhesion planes
Motion Assessment
- AROM: restricted in any plane where scar tissue crosses a joint; the degree of restriction directly correlates with scar contracture severity; ROM may worsen over time as scar matures and shortens if stretching is not maintained; compare bilaterally
- PROM / end-feel: firm, inelastic (leathery) end-feel from scar tissue contracture — distinct from capsular restriction; tissue "pulls" at the scar line before joint structures are engaged; PROM may exceed AROM significantly if scar tissue is the primary restriction (because the scar stretches under sustained load)
- Resisted testing: generally normal strength unless prolonged immobilization has caused disuse atrophy; weakness in muscles whose excursion is limited by overlying scar contracture; test antagonist strength — if contracture has been longstanding, antagonists may be weak from chronic lengthened position
Special Test Cluster
The SOT cluster for burns is oriented toward assessing scar tissue quality, burn severity, and complications rather than standard orthopedic testing.| Test | Positive Finding | Purpose |
|---|---|---|
| Scar Mobility Assessment (CMTO) | Scar does not glide freely in one or more directions; tethered to underlying fascia or bone | Identify adhesion planes and treatment priorities for scar mobilization |
| ROM Measurement (Goniometry) (CMTO) | Restricted ROM at joints crossed by scar tissue compared to unaffected side | Quantify functional limitation from contracture; track treatment progress |
| Sensation Screen (Light Touch/Sharp-Dull) (CMTO) | Absent, diminished, or altered sensation in burned/grafted areas | Identify zones where patient feedback is unreliable — critical for pressure dosing and thermal modality safety |
| Blanch Test (Capillary Refill) (supplementary) | Slow or absent capillary refill in grafted or scarred tissue | Assess vascularity of scar tissue — avascular (white/pale) scars are mature; vascular (red) scars are still changing |
| Skin Turgor and Hydration Assessment (supplementary) | Dry, cracked, or fragile skin over burned areas | Assess skin integrity before applying manual techniques; identifies need for emollient application |
Scar maturity assessment: Red/vascular scars are immature (still remodeling) and respond best to consistent manual therapy; white/pale scars are mature and less responsive to change but still benefit from mobilization for functional gains.
Differential Assessment
| Condition | Key Distinguishing Feature |
|---|---|
| Contact Dermatitis | Erythema and blistering pattern follows contact with irritant/allergen; no thermal/chemical exposure history; pruritic rather than painful; resolves with avoidance |
| Cellulitis | Spreading erythema with warmth, tenderness, and systemic fever; may develop at burn site; medical referral for antibiotics |
| Necrotizing Fasciitis | Rapidly spreading tissue destruction with severe pain out of proportion to appearance; systemic toxicity; surgical emergency |
| Complex Regional Pain Syndrome | Burning pain, allodynia, and autonomic changes (color, temperature, sweating) disproportionate to original injury; may develop after burns; diagnosed by clinical criteria |
| Frostbite | Cold-induced tissue damage with initial numbness followed by pain on rewarming; blistering and tissue necrosis similar to thermal burns; history of cold exposure distinguishes |
CMTO Exam Relevance
- Know the Rule of Nines for TBSA estimation and that burns >15% TBSA trigger systemic complications
- Understand burn depth classification: superficial (painful, epidermis only) vs. full-thickness (insensate, requires grafting)
- Infection is the most significant threat to life once the skin barrier is compromised
- Circumferential full-thickness burns of a limb are a tourniquet emergency requiring escharotomy
- Hypertrophic scars remain within wound margins; keloids extend beyond — this distinction is testable
- Scar maturation benefits from massage; cross-fiber friction and sustained pressure improve pliability
- Grafted tissue has altered sensation and thermoregulation — always test sensation before treatment
- ROM preservation across burn contractures is the primary rehabilitation goal for MT
Massage Therapy Considerations
- Primary therapeutic target: chronic burn scar tissue — restoring scar mobility, pliability, and fascial glide; preserving and improving ROM across joints affected by contracture; managing compensatory musculoskeletal patterns
- Sequencing logic: begin with general relaxation away from scar sites to establish therapeutic rapport and reduce systemic guarding; then address compensatory muscle tension; then progress to scar mobilization starting with peripheral (less sensitive) areas and progressing to the most adherent/sensitive zones as tolerance allows
- Safety / contraindications: acute burns are an absolute local contraindication — do not touch the burn site; healing burns with open wound, blistering, or scabbing are locally contraindicated; work proximal to acute burn sites to support lymphatic drainage; grafted tissue requires clearance from the surgical team before massage; impaired sensation in full-thickness and grafted areas means patient feedback is unreliable — rely on visual tissue response (blanching, color change) rather than reported pain
- Scar mobilization timing: scar tissue work can begin once the wound is fully epithelialized (closed, no open areas) and sutures or staples are removed; typically 6–8 weeks post-injury for surgical scars; early intervention during the immature (vascular/red) scar phase yields the best results
- Heat/cold guidance: avoid heat application to areas with impaired sensation (cannot report burning); cool compresses can reduce pruritis; moist heat to unaffected surrounding muscles before treating compensatory tension is appropriate; pressure garment use is complementary to manual therapy — garments should be worn for 23 hours/day during scar maturation
Treatment Plan Foundation
Clinical Goals
- Improve scar tissue mobility and pliability to reduce contracture severity
- Maintain or restore ROM at joints crossed by scar tissue
- Reduce pruritis and hypersensitivity in scar and grafted areas
- Address compensatory musculoskeletal pain from altered posture and guarding
Position
- Position to allow access to the primary scar areas while maintaining patient comfort
- Avoid pressure directly on sensitive grafted areas or immature scars when positioning (use donut cushions or bolsters to offload)
- Prone may be difficult if anterior chest, face, or neck burns are present — side-lying or supine preferred
- Ensure exposed burn/scar areas are draped respectfully — many burn survivors have significant body image concerns
Session Sequence
- General relaxation massage to unaffected areas — establish therapeutic rapport and reduce overall sympathetic tone; assess compensatory tension patterns
- Address compensatory musculoskeletal tension — muscles working against contracture pull (e.g., scapular retractors if anterior chest contracture; hip extensors if anterior hip contracture)
- Warm surrounding tissue with effleurage and myofascial techniques — prepare the tissue transition zone between normal skin and scar tissue
- Scar mobilization — begin at the periphery of the scar and work toward the center; use sustained pressure, skin rolling, and cross-fiber techniques to release adhesions and improve fascial glide; work in the direction of greatest restriction
- Sustained longitudinal stretching of the scar along the contracture line — slow, sustained load to promote collagen realignment along functional stress lines (Wolff's law applied to scar tissue)
- Cross-fiber friction at specific adhesion points where the scar is tethered to underlying fascia or bone — break adhesions and restore layered tissue mobility [monitor sensation — stop if no feedback in full-thickness areas]
- Gentle active-assisted ROM through the range gained during scar mobilization — reinforce the mechanical gains with active movement
- Reassess ROM and scar mobility — compare to pre-treatment baseline; document gains
Adjunct Modalities
- Hydrotherapy: moist heat to surrounding unaffected tissue before scar work to improve pliability; avoid heat directly on insensate areas; cool compresses post-treatment if reactive inflammation develops; cool cloths for pruritis relief
- Remedial exercise (on-table): active-assisted ROM exercises immediately after scar mobilization to reinforce gained range; sustained end-range stretching (30-second holds) across contractured joints; progressive active stretching program to prevent contracture recurrence between sessions
Exam Station Notes
- Demonstrate sensation testing before applying any technique to burned or grafted areas — the examiner expects this as a safety step
- Show appropriate scar assessment: color (maturity), mobility (adhesion directions), and location relative to joints
- Verbalize scar mobilization timing — "I would confirm the wound is fully epithelialized before beginning direct scar work"
- Demonstrate awareness of pressure limitations in insensate areas
Verbal Notes
- Sensation screening: "Before I work on your scar tissue, I'm going to test how well you can feel in that area. I'll touch you with different pressures — tell me what you feel and whether it's the same as the other side. This helps me know how much pressure is safe."
- Body image sensitivity: "I want you to feel comfortable throughout our session. You can keep any clothing on that you prefer, and please let me know if you'd like me to approach the scarred areas differently."
- Pruritis information: "The itching you're experiencing is a normal part of scar maturation — it usually means the scar is still actively remodeling. Massage can help reduce the itching, and keeping the area well-moisturized between sessions will help too."
Self-Care
- Daily scar moisturization with fragrance-free emollient to maintain hydration and reduce pruritis — apply in circular massage motions to perform daily self-mobilization
- Sustained stretching across contractured joints — 30-second holds, 3–5 repetitions, 2–3 times daily to counteract scar shortening between treatment sessions
- Wear pressure garments as prescribed (typically 23 hours/day for 12–18 months) — sustained compression reduces hypertrophic scar formation
- Sun protection for scarred and grafted areas (SPF 30+ or physical coverage) — scar tissue is highly susceptible to UV damage and hyperpigmentation
Key Takeaways
- Burns are classified by depth (superficial to full-thickness) and extent (Rule of Nines); infection is the most significant threat to life once the skin barrier is compromised
- Acute burns are an absolute local contraindication; chronic scar tissue is a strong indication for massage — timing of intervention depends on complete wound epithelialization
- Hypertrophic scars remain within wound boundaries; keloids extend beyond — this distinction is clinically and exam-relevant
- Full-thickness burns and grafted tissue are insensate — patient feedback is unreliable; sensation testing before treatment is mandatory
- Scar contracture across joint lines is the primary rehabilitation concern; ROM preservation through sustained stretching and cross-fiber mobilization is the MT priority
- Immature (red/vascular) scars are most responsive to manual therapy intervention; early and consistent treatment produces the best functional outcomes
- Circumferential full-thickness burns of a limb require emergent escharotomy — this is a medical emergency, not a massage scenario