Causes of skin necrosis
The main cause of skin necrosis is a lack of oxygen-rich blood supply to the skin and the underlying tissue. Some common contributing factors are:
- Surgical stress: during an operation, blood vessels can be damaged, limiting the blood supply to certain parts of the skin.
- Tension on the skin: excessive tension from stitches or a tight wound closure can reduce the blood supply.
- Infection: an infection can disrupt the blood supply to the tissue and contribute to necrosis.
- Patient risk factors: smoking, diabetes, obesity and vascular disease increase the risk of poor wound healing and skin necrosis.
- Skin trauma: injury during or after the operation can make the skin vulnerable to dying off.
Symptoms of skin necrosis
The symptoms of skin necrosis can appear shortly after the operation, but sometimes it takes a few days before they become clear. Typical signs are:
- Discolouration of the skin: the affected area can turn pale, dark brown, purple or black, depending on the severity.
- Cold skin: the necrotic area feels cold due to the lack of blood supply.
- Pain or numbness: necrotic tissue can be painful at first, but in advanced stages it often becomes numb.
- Open wounds or sores: in severe cases, the skin can break open and ulcerate.
- Odour: necrosis can be accompanied by an unpleasant smell, especially if it becomes infected.
Treatment of skin necrosis
The treatment of skin necrosis depends on its severity and cause. The aim is to prevent further damage, support the healing process and prevent infection.
Conservative treatment
- Wound care: regular cleaning of the affected area with antiseptic agents to prevent infection.
- Debridement: removal of dead tissue to support the healing of healthy tissue.
- Topical treatments: use of special ointments or dressings, such as honey dressings or silver sulfadiazine, to support the healing process.
- Antibiotics: if there is an infection, oral or intravenous antibiotics may be needed.
Surgical treatment
In severe cases, surgery may be necessary:
- Surgical debridement: removal of large amounts of necrotic tissue.
- Reconstructive surgery: if needed, a skin graft or reconstruction can be performed to restore the lost tissue.
Risk factors and prevention
Some patients are at greater risk of skin necrosis. Risk factors include:
- Smoking: nicotine reduces the blood supply to the skin.
- Chronic diseases: such as diabetes and vascular disease, which affect wound healing.
- Excessive tension on the wound: this can be caused by tight stitches or too much tissue displacement during the operation.
- Infections: poor wound hygiene increases the risk of complications.
Preventive measures:
- Stop smoking before and after the operation.
- Take good care of the wound and follow the doctor’s advice strictly.
- Choose an experienced surgeon who can ensure minimal tension on the skin.
- Manage underlying conditions such as diabetes well.
Prognosis
With timely and adequate treatment, skin necrosis can usually be controlled, although the healing process can take a long time. The outcome depends heavily on the severity of the necrosis, the patient’s general health and how quickly treatment is started.
In some cases, scars or aesthetic changes may occur. Reconstructive surgery can help to improve the appearance and restore the function of the affected area.
See also our page about Scar correction.
