Tissue necrosis

Most cosmetic operations and minimally invasive procedures go smoothly. However, any medical treatment that interferes with the skin’s structure or the blood vessel system carries residual risks. One of the most feared and serious complications is tissue necrosis. Tissue death is not only a cosmetic disaster, but also a medical emergency that requires immediate action to prevent further damage.

This guide provides objective and medically sound information about this complication. We explain how necrosis develops, what early warning signs to look out for, and why prompt medical intervention and adequate financial cover are so important in this situation.

Definition: What is tissue necrosis?

Tissue necrosis (often simply referred to as necrosis) is the medical term for the irreversible death of cells in a living organism. In necrosis, cells or entire tissue structures (such as skin, adipose tissue or muscles) die off at a specific site. This cell death is always pathological (disease-related) and triggers a severe inflammatory reaction in the surrounding, still-healthy tissue, through which the body attempts to break down the dead material.

The main cause: a lack of oxygen (ischaemia)

By far the most common cause of necrosis following cosmetic procedures is a circulatory disorder.

Our tissues require a constant supply of oxygen-rich blood to survive and heal. If this blood supply is interrupted or severely restricted (medically known as ischaemia), the cells „suffocate“. If this condition persists for several hours, the tissue damage becomes irreparable – the tissue undergoes necrosis.

Common triggers in aesthetic medicine

Such a life-threatening disruption to blood flow to the tissues can be triggered by various factors:

Vascular occlusion following hyaluronic acid injections

This is the most feared risk associated with dermal fillers. If the doctor accidentally pierces a blood vessel with the needle and injects the viscous hyaluronic acid filler into it, the filler blocks the vessel like a plug (occlusion). The tissue downstream is no longer supplied with blood.

Excessive tissue tension following surgery

In procedures such as a facelift, an abdominoplasty (tummy tuck) or a breast lift, the skin must be repositioned. If the tension at the edges of the wound is too high (because too much skin has been removed), the fine capillaries are „compressed“. This often results in what is known as wound margin necrosis.

Haematomas (bruises)

A large post-operative haematoma that cannot drain exerts enormous pressure on the surrounding tissue and can effectively cut off the blood supply.

The biggest factor affecting patients: smoking!

Nicotine causes blood vessels to constrict significantly. Smokers are many times more likely to develop necrosis following surgery, as their already impaired microcirculation cannot cope with the stress of wound healing.

Recognising the warning signs: The progression of necrosis

Time is the most critical factor when necrosis is imminent. If you recognise the early warning signs, you can often prevent the situation from getting worse.

Watch out for red flags! The typical progression of the phases

1. Phase 1 – Ischaemia (immediately to several hours) The skin in that area becomes extremely pale or white and feels cold to the touch. Very severe, atypical, throbbing pain often occurs (particularly typical in the case of a vascular occlusion caused by hyaluronic acid).
2. Phase 2 (hours to days) The pallor gives way to a net-like, bluish-purple discolouration (livedo reticularis), which looks like a severe bruise. Blisters often form later on.
3. Phase 3 – Necrosis (after days) The dead tissue turns dark brown to deep black and becomes leathery and dry (scab) or moist and squelchy (if there is a concurrent bacterial infection).

Treatment: From emergency enzyme therapy to surgery

Treatment depends on how quickly the problem is identified:

Hyaluronic acid emergencies (immediate action)

If a vascular occlusion is detected during or shortly after the injection, the doctor immediately injects high doses of the enzyme Hylase (hyaluronidase). This enzyme immediately breaks down the hyaluronic acid in the blood vessel, allowing blood flow to be restored and usually preventing cell death (necrosis) entirely.

Debridement (in cases of necrosis)

If the tissue (e.g. at the edge of a wound following abdominal surgery) is already black and necrotic, it cannot recover. It must be surgically removed (excised) by the surgeon. This procedure is called debridement. The dead tissue must be removed to prevent the wound from becoming infected and to allow the underlying healthy tissue to heal.

The serious consequences for aesthetics

The main problem with necrosis in plastic surgery is tissue loss. When the surgeon has to remove dead tissue, this creates a „hole“ or a defect.

• The wound often has to heal „openly“ from the bottom up (secondary healing), which takes a long time and almost always results in wide, sunken and unsightly scars.
• If, for example, tissue dies on the nose (following complications from fillers), this can result in permanent, severe disfigurement.
• Further reconstructive surgery is often required months later to improve the appearance of the scar or to restore lost volume (e.g. using the patient’s own fat).

Financial security: Who bears the high costs of correction?

Tissue necrosis is one of the most costly complications. Treatment involves emergency surgery, surgical removal of tissue, months of wound care and expensive reconstructive surgery at a later stage (scar correction).

As these serious complications arise as a result of what is usually a purely cosmetic procedure, statutory and private health insurers generally refuse to cover these costs in accordance with Section 52(2) of Book V of the Social Code (SGB V). For the patient, this means not only physical and emotional suffering but also a financial burden.

Taking out follow-up costs insurance in good time before the initial treatment is therefore the most important safeguard. It helps to cover the enormous costs of the medically necessary treatments and operations required to treat the necrosis and its consequences.

Frequently Asked Questions (FAQ) on Tissue Necrosis