An Overview
When a person suffers a burn, there are three types of scars which can emerge: Keloid, Hypertrophic, and Contractures. Keloid scars result from an overgrowth of scar tissue. The scars are generally red or pink in coloring but turn brown with time. Hypertrophic scars are raise, red, and thick. They differ from Keloid scars as they do not extend beyond the site of injury. Contracture scars emerge from a tightening of skin. These scars can affect the underlying tendons and muscles limiting mobility as well as causing nerve damage.
Keloid Scars
A Keloid scar involves a growth of excessive scar tissue beyond the site of the burn injury. It is caused when the body continues to produce collagen even after the wound has healed. These scars are very thick, ridged, nodular and itchy during formation. If the scar becomes too extensive it may limit mobility. Keloid scars are sensitive to friction such as clothing rubbing against them. People with darker skin and a youthful age are most likely to develop Keloids.
They can be minimized through cyrotherapy (freezing), cortisone injections, external pressure, steroid injections, radiation, or surgical removal. Generally, injections and external pressure are attempted first and if unsuccessful, outpatient surgery is performed under a local anesthesia. Doctors may recommend pressure garments to be worn to prevent Keloids from re-occurring. Treatments may be needed every few years as Keloids commonly reappear.
Hypertrophic Scars
Hypertrophic scars are limited to the site of injury and will improve over time. With the assistance of steroids, the healing process can be expedited.
Contractures
A contracture scar occurs when the skin tightens permanently. This can limit mobility as well as cause nerve damage. The scar develops when normal elastic tissues are replaced by inelastic fibrous tissue. This new tissue is resistant to stretching and inhibits normal movement.
Physical therapy combined with pressure and exercise can be helpful in aiding these scars. If therapeutic treatment does not succeed, surgery may be needed. A skin graft of flap procedure may be performed by a doctor. In addition, there are new techniques such as Z-plasty or tissue expansion which may be recommended.
source: ezinearticles.com
Kamis, 12 Agustus 2010
Langganan:
Posting Komentar (Atom)
Keloids Symptoms are generally raised, firm, smooth and shiny. They are frequently red or pink, or much blacker or brighter in color than the surrounding skin.