Acute Burn Excision / Skin Grafting | Scars, function and later treatment

Graft take depends on adequate wound-bed excision, bleeding control and avoiding hematoma, seroma, shear or infection; with experience take should consistently be above 80%. Long-term outcomes depend on injury severity, healing time and therapy participation; hypertrophic scarring, contractures, pigment changes, itching and pain can follow. Facial burns healing beyond 21 days risk hypertrophic scarring. Graft loss remains the main complication, and contracture release may be needed to regain full function after tangential excision and skin grafting. Grafts are secured with staples or absorbable sutures, and adjuvant care continues until grafts are taken and stable, usually by day seven. Major burns may need many operations and intensive care for weeks.

Thinner grafts often lose many hair follicles, so hair growth is unusual; thicker grafts may regain hair with donor-site characteristics. Sweat glands may be absent or damaged; when present, sweating usually does not return for two to three months and may remain abnormal for years. They depend on nerve reconnection and then behave like the recipient bed. Feeling returns gradually over months to years, often incompletely, with pain before touch and temperature. Thicker grafts may regain more complete feeling, and temperature control may stay abnormal for many years. Grafted skin can stay dry and scaly until sweating returns. Reinnervation begins two to four weeks after grafting and may take months to years.

Newly healed or grafted burn skin remains highly sensitive to sunlight, and sun exposure can increase hyperpigmentation risk in grafted and nongrafted wounds. Moisturizer is essential because newly grafted or healed skin lacks the glands that usually keep skin moist; dry, scaly skin can itch and feel tight. In facial burns, pressure garments worn 24 hours daily help prevent contracture formation and support scar maturation. Avoid direct sun, excess heat and friction while the graft matures. Nonadherent dressings, bolsters and splints may also reduce shear and protect grafts, especially near joints. Protection should continue even on cloudy days, and direct sun exposure should be avoided for at least six to twelve months after burn injury before relying on sunscreen outdoors.

Partial-thickness grafts cover most routine burns, but on highly mobile areas such as fingers, hand or wrist they may lead to retractile scars. Wound contraction around mobile areas and anatomical landmarks can lead to contractures, deformity and impaired function. Tension increases scar spreading and thickening, especially where skin is fixed and motion increases tension. Removing tissue down to a deeper layer can worsen functional scarring and make grafts more adherent to underlying muscle. All grafts are surrounded by marginal hypertrophic scar; interstices in mesh grafts develop hypertrophic scarring, and contraction depends on dermal thickness. Early rehabilitation with positioning, splints and movement helps maintain range of motion. Surgical release of contracture is often necessary to regain full function.

The study included children under 18 years with burns of 1% to 14.9% TBSA requiring split-thickness grafting; children with burns of 15% TBSA or more, dermal substitutes, or no grafting were excluded. Scar assessment used standardized photographs taken in the same room and the observer portion of POSAS 2.0, completed by the same senior occupational therapist with more than 10 years of burn-scar experience. Time from injury to surgery was not an independent factor for POSAS scores. The study had insufficient numbers to compare meshed and non-meshed grafts. Pressure garments and massage are described as fairly routine early after burns to mediate scar tissue formation.

Graft loss, partial or total, remains the main complication after tangential excision and grafting. Causes include inadequate excision of the wound bed, hematoma, seroma, graft shear and infection. Full-thickness burns require excision and skin grafting to reduce infection and sepsis risk. Grafted wounds can require dressings for up to six weeks. Some small wounds under 5 cm may heal spontaneously, while larger injuries need closure. Grafts are inspected on day 2 if infected or day 5 if not. If only part heals, the unhealed area may reflect one of these problems; regrafting is considered after the bed is reassessed for viability and infection.

Acute excision and grafting close deep burns and reduce infection risk, yet healed grafts and scars can still tighten, especially over joints. Full-thickness skin grafts can help counter contracture and restore flexibility where skin has shrunk. For poor cosmetic appearance, the healed area may be re-excised and resurfaced; a thick sheet split-thickness skin graft can give outstanding cosmetic results, but patients should understand resurfacing still leaves burn scars, trading one scar for a hopefully better one. Treatment and recovery depend on burn severity, age and general health; minor burns can heal in a couple of weeks without surgery, particularly in children who are growing.

Burn nursing goals include letting you freely discuss ongoing fears, concerns and anxieties related to being burned, then verbalising reduced fear and communicating that anxiety does not interfere with sleep or activity. Pain is assessed regularly, range of motion and strength are checked, and physiotherapy or occupational therapy input guides function. Early excision and grafting can reduce hospital stay, pain and reconstructive procedures and may minimise severe hypertrophic scars and contractures. Structural fat grafting may improve scar pliability, vascularity and pigmentation in burn-related scars. These supports address physical recovery and some psychosocial goals, but they do not replace individual mental-health care when needed.

Burn rehabilitation begins on admission and continues for months to years after injury. Burn scar tissue is most active three to four months after injury, and scar maturation can take a year or more. An outpatient program may include wound care, splinting or casting, scar assessment and management with compression garments, range of motion, stretching, strengthening, endurance and exercise, psychological or emotional adjustment, return-to-work needs and peer support. Therapists continue to evaluate evolving problems, and communication with the burn team or current caregivers about wounds or contractures can assist the surgeon in formulating reconstructive plans. Long-term outcomes depend on injury severity, healing time and patient participation.