Thickness
About Thickness
Assessment of scar thickness is usually based on the amount of scar visible above the surrounding non-affected area. This doesn’t reflect the amount of scarring under the surface; high high-frequency ultrasound can be used to assess the whole thickness of the scar above and below what is visible.
Treatment options for Thickness
Pressure Therapy
Pressure therapy is a standard treatment to prevent hypertrophic scars (mainly burn scars). Pressure therapy involves wearing garments made from elasticized fabrics or wearing masks/collars made from hard materials maybe with a silicone top layer. The exact reason why pressure works is still not fully understood. It’s thought that pressure controls collagen synthesis and limits the supply of blood, oxygen and nutrients to the scar tissue. It may also have a role in reducing inflammation.
Silicone Therapy
Scars and skin graft donor sites need regular creaming (moisturisation) to prevent the area from drying, cracking and becoming sore. The oil glands in your skin which usually provide moisture can be damaged or destroyed by the injury. The surface layer of the skin which prevents water loss is damaged. Therefore, the healed skin lacks the moisture needed. Silicone works by sealing in the moisture and hydrating the scar. Through providing occlusion (covering) and hydration to the outer layer of the epidermis evaporation of water is reduced from the skin. Silicone treatment aims to flatten, soften and reduce the redness and discomfort of your scar over time. Silicones possess many skin-friendly properties; they are easy to use and remove, painless, can be worn for long periods, are resistant to microbial growth, and are waterproof.
Topical Ointments and Creams
Several prescription and over-the-counter topical agents are available, many claim to alleviate symptoms, improve the appearance of scars and accelerate wound healing. Topical therapies have the advantage of being easy to use, are easily available and deliver the ingredients directly to the scar. Patients often decide (maybe based on word of mouth) themselves on which topical agents to use rather than through recommendations from a scar specialist. Topicals are not usually effective on their own and other treatments are also usually necessary. Some information on common topicals is given here:
Scar Massage
Scar massage is a non-surgical technique used in day-to-day scar and burn care. There are multiple techniques that can be used and that are quite easy to apply.
Vacuum Massage
Vacuum massage is also known as depressomassage, vacuotherapy or Endermologie®. It is a non-invasive mechanical massage technique. It is performed with a mechanical device that lifts the skin by suction and creates a skin fold which can be mobilised. In the late 1970s, Louis-Paul Guitay developed the Endermologie® system (or LPG), this uses both suction (negative pressure) and mechanised rollers to mimic manual massage. LPG can provide consistent and effective treatment in a shorter time. Treatment sessions are painless and vary from 10 minutes to longer depending on the state and size of the scar.
Shockwave Therapy
Extracorporeal shock wave therapy (ESWT) is a type of pulsed acoustic wave resulting from excessive pressure changes. It has been used to treat musculoskeletal diseases (plantar fasciitis, lateral epicondylitis of the elbow, etc.) and wounds. Recent research has shown that ESWT is effective in stimulating biological activities that involve cellular activity. These results suggest that ESWT improves blood perfusion and can be used in tissue regeneration/ scar remodelling. Shockwave treatment is performed without anaesthesia; a treatment head and gel are applied to the area of scar treated.
Scar Taping
Elastic taping (kinesio tape) is an acrylic adhesive that is often used as a physiotherapeutic tool for the treatment of various musculoskeletal problems and other clinical conditions in athletes and patients.
Injectables
There are many treatments for keloid and hypertrophic scar. In addition to corticosteroid injections many other chemotherapeutic agents have become popular as injectable anti-scarring agents.
Corticosteroid Therapy
Corticosteroid therapy has been commonly used for years to treat hypertrophic and keloid scars. Corticosteroids suppress inflammation, reduce collagen synthesis and inhibit cell proliferation; itch and thickness of scars is reduced. Corticosteroids can be given through injection, steroid tape or topically (by cream). Intralesional injections (injections into the scar) are common treatments for linear scars, hypertrophic scars and small keloids. Other treatments alongside corticosteroid therapy are often required for large keloids and thick hypertrophic scars.
Micro-Needling
Micro-needling is a semi-invasive technique that can be used on the face and body to achieve collagen induction (production). In this technique the skin or scar is pricked with needles to cause percutaneous collagen induction, this builds up connective tissue underneath retracted (contracted/stuck) or hypertrophic scars and wrinkles.
Non Ablative Fractional Laser (NAFL)
A Non-Ablative Fractional Laser (NAFL) is a non-wounding laser, it does not damage the integrity of your epidermis. NAFL uses a wavelength that does not evaporate the water in the tissue, and the energy from the laser heats the tissue in a controlled manner. Therefore, many patients prefer NAFL to ablative laser treatment. The rise in temperature stimulates the production of new collagen. By producing new collagen, the remodelling of the scar tissue is improved. Although NAFL is less invasive, requires less recovery time and has less complication risks, is not as effective as ablative laser resurfacing.
Ablative Fractional Laser (AFL)
The Ablative Fractional Laser (AFL) is a wounding laser, which delivers micro fractional columns of laser light to the top layers of the skin. This treatment works by creating thousands of microscopic areas, through heat, where the top layer of the skin is ablated (removed). These tiny areas of damage are surrounded by untreated skin, this allows healing of the skin. Traditional ablative laser resurfacing can take on average up to three weeks to heal. Types of ablative treatments include the carbon dioxide (CO2) laser and the erbium laser. AFL is performed under local anaesthesia.