When Do Scars Need Reconstructive Surgery?

Reconstructive Strategies

Scars are the result of wound healing. Mild scars may only appear darker, locally red, or slightly firm to the touch, and may have little effect on daily life. They can often be improved with sun protection, silicone, laser treatment, injections, pressure therapy, and related measures.

Reconstructive surgery should be considered mainly when there is already tissue loss, pulling deformity, limited movement, repeated breakdown, severe overgrowth, or when function has been affected in important areas such as the face, hands, neck, joints, or perineum.

The goals of reconstructive surgery for scars are to improve appearance, release pulling, restore skin length, rebuild soft-tissue thickness, protect important structures, and reduce later recurrent overgrowth and contracture as much as possible.

Common methods include meticulous excision and suturing, Z-plasty, W-plasty, skin grafting, local flaps, expanded flaps, perforator flaps, free flaps, microsurgical reconstruction, and comprehensive postoperative management with silicone, pressure, laser treatment, rehabilitation, and other measures.

When a scar limits movement, seek assessment early

When a scar is near a joint, it may gradually become harder and shorter, forming a scar contracture.

Common sites include the neck, armpit, elbow, wrist, fingers, knee, and ankle. Patients may have difficulty raising the arm, straightening the fingers, making a fist, bending the head down or lifting it up, or may develop a changed walking posture.

These scars should be assessed early by plastic surgery, burn and reconstructive surgery, or rehabilitation medicine. In the early stage, they may be controlled with pressure therapy, splints or braces, stretching exercises, laser treatment, injections, and related methods. If the skin has already shortened clearly and joint motion has decreased, surgical release is usually needed, followed by skin grafting, a local flap, or another reconstructive method according to the size of the defect.

Burn scar contractures can restrict movement of muscles, joints, and tendons, so “restricted motion” is also listed as an important indication for scar reconstruction.

Neck scar contracture needs reconstruction when it affects head extension and the jawline

Post-burn scar contracture of the neck is a typical indication for reconstructive surgery. In severe cases, the chin is pulled toward the chest, the cervicomental angle disappears, neck movement is limited, and both appearance and function are affected.

After release of a neck scar, a new local soft-tissue defect often appears. Simple direct closure can easily cause renewed pulling, so the shape of the chin and neck may need to be reconstructed with expanded flaps, free flaps, trapezius myocutaneous flaps, platysma flaps, scar-tissue flaps, deep fascial tissue flaps, or similar methods.

One study on chin reconstruction during surgical treatment of neck scar contracture included 13 patients with severe post-burn neck scar contracture and chin deformity. Platysma flaps, scar-tissue flaps, deep cervical fascial tissue flaps, and other methods were used to supplement chin soft tissue, combined with expanded flaps, free flaps, or trapezius myocutaneous flaps to repair neck scars. After surgery, neck contour was good and the reconstructed chin tissue flaps healed satisfactorily.

Facial scars require more delicate repair when they affect facial features

Standards for treating facial scars are usually higher than for hidden body areas. This is especially true around the eyelids, nasal ala, lips, mouth corners, eyebrows, and mandibular margin. If a scar causes incomplete eye closure, eyelid ectropion, nostril deformity, misalignment of the vermilion border, pulling of the mouth corner, or facial-expression asymmetry, reconstructive surgical assessment is needed.

Facial repair cannot be based only on scar size. It must also consider whether anatomical landmarks are aligned, whether skin texture is harmonious, and whether tension is excessive. For example, during debridement, important nerves and blood vessels should be protected and usable tissue preserved as much as possible. Superficial wounds can be closed with fine sutures without tension, while deeper wounds need layered closure. Injuries around the eyes, nose, and lips require precise restoration of key anatomical points; for the lip, the vermilion border should be aligned first. For facial defects larger than 1 centimeter that cannot be closed directly, repair should be planned according to organ shape, facial contour, skin color, and texture, using methods such as local flaps, free skin grafts, or free composite-tissue transfer.

Hand scars should not be delayed when they affect grip and fine movement

The hand has very high functional demands. If finger scars, palmar scars, web-space scars, or first web-space scars make it difficult to straighten the fingers, make a fist, separate the fingers, use chopsticks, or write smoothly, early treatment is needed. The focus of hand scar treatment is to restore skin coverage, tendon gliding, joint motion, and finger shape.

In addition, soft-tissue defects or severe scars of the hand are not treated only to “cover the wound.” Sensation, thickness, wear resistance, appearance, and mobility must also be considered. For the fingertip, finger pulp, first web space, and similar areas, refined flaps or microsurgical reconstruction often meet functional needs better than simple skin grafting.

Scars after large deep burns require long-term reconstructive planning

After deep second-degree and third-degree burns, the dermal layer of the skin is severely damaged. After healing, hypertrophic scars, scar contractures, pain, itching, pigment abnormalities, and limited joint motion often occur. Simple split-thickness autologous skin grafting can cover the wound, but because the reticular dermis is lacking, long-term scar quality may be unsatisfactory.

An intra-individual randomized controlled trial of the Glyaderm acellular dermal regeneration template showed that single-stage Glyaderm combined with split-thickness autologous skin grafting had comparable graft take, pain level, and wound-healing time to split-thickness autologous skin grafting alone. Areas treated with Glyaderm scored better for skin sensation and scar quality, and histologic analysis suggested that it could promote dermal regeneration, with elastin present up to 12 months. A recent systematic review also noted that contracture, hypertrophy, pain, and itching often occur after deep dermal and full-thickness burns, and that dermal substitutes are used in burn and post-burn reconstruction to improve long-term repair quality.

When conservative treatment fails for hypertrophic scars, surgical or minimally invasive reconstruction may be considered

Hypertrophic scars appear red, raised, firm, itchy, and painful, and are usually limited to the original wound area. Early treatment may include silicone, pressure, laser treatment, injections, tension reduction, and related measures. If the scar has lasted a long time, protrudes obviously, does not respond to conservative treatment, or causes functional impairment because of contraction, surgical treatment should be considered.

When keloids repeatedly enlarge or recur, combined treatment is needed

Keloids grow beyond the boundaries of the original wound and extend into surrounding normal skin. They commonly occur on the earlobes, anterior chest, shoulders and back, jawline, and upper arms. Their tendency to recur is stronger than that of ordinary hypertrophic scars. Simple excision may stimulate scar growth again, and the recurrence may even be larger.

Keloids that require surgical treatment usually include those that are large, clearly affect appearance, cause severe pain or itching, repeatedly become infected or break down, compress or pull surrounding tissue, or continue to enlarge after multiple injections or laser treatments. Treatment usually needs to combine postoperative radiotherapy, injections, pressure clips, silicone, laser treatment, and long-term follow-up. Guidelines for pathological scar treatment state that treatment depends on symptoms, functional impairment, and impact on quality of life; surgery for keloids should be cautious because simple surgery has a high recurrence rate.

Repair can also be evaluated when appearance and psychological burden are severely affected

Not every scar operation has to wait until function is limited. For scars in exposed areas such as the face, neck, and hands, if they cause obvious changes in appearance, social avoidance, low self-esteem, or anxiety, and nonsurgical treatment has limited benefit, professional assessment may also be appropriate. The goals of scar repair include improving appearance, restoring function, and improving quality of life.

How do doctors choose the reconstructive method?

Plastic surgeons first evaluate scar type, location, size, depth, blood supply, skin tension, whether contracture is present, whether the scar has recurred, and whether function is affected. Small linear scars may be treated with meticulous excision and suturing. Cord-like traction may be treated with Z-plasty or a local flap. Large defects after release of extensive scars may require skin grafting. Delicate areas such as the face, neck, and hands may require local flaps, expanded flaps, or microsurgical flaps. When deep structures are exposed or tissue loss is complex, free-flap reconstruction may be needed.

Scars usually need reconstructive surgery in these situations: they affect joint movement and cause contracture of the neck, hand, armpit, elbow, knee, or other areas; they affect the shape and function of facial features such as the eyelids, nasal ala, lips, and mouth corners; there is a large soft-tissue defect that cannot be closed directly; there is extensive hypertrophy or contracture after burns; hypertrophic scars fail conservative treatment and cause functional impairment; keloids repeatedly enlarge or recur; scars repeatedly break down, become infected, cause pain, or do not heal for a long time; or scars in exposed areas severely affect appearance and psychological state.

Surgical reconstruction is a complete treatment plan. It includes releasing traction, restoring tissue length, selecting suitable coverage material, meticulous suturing, reducing tension, and combining postoperative silicone, pressure, laser treatment, injections, rehabilitation, and follow-up.

The earlier the scar type and functional impact are clarified, the easier it is to choose an appropriate reconstructive strategy, and the better the chance of achieving stable recovery of appearance and function.