What Happens During and After a Skin Substitute Is Applied to a Foot Ulcer?

When a skin substitute is applied to a foot ulcer, the wound is first evaluated and prepared so the product can make appropriate contact with healthy tissue. The skin substitute is then placed over or into the wound according to the specific product instructions, secured with an appropriate dressing, and protected from excess pressure while healing is monitored.

The procedure is only one part of treatment. Continued wound care, offloading, infection control, circulation management, blood sugar control, and follow-up can be just as important as the skin substitute itself.

What Happens Before a Skin Substitute Is Applied?

Before using a skin substitute, your podiatrist evaluates whether the wound is ready for advanced grafting.

This assessment may include:

• Measuring the wound's length, width, and depth
• Examining the wound bed and surrounding skin
• Checking for infection
• Assessing circulation
• Evaluating pressure on the wounded area
• Reviewing how the wound has responded to previous care
• Reviewing diabetes control and other medical conditions

The wound must also be appropriately prepared before the product is applied.

Does the Foot Ulcer Need to Be Debrided First?

Debridement may be performed when dead, damaged, callused, or contaminated tissue is preventing the wound from healing properly.

Removing this tissue can create a healthier wound bed and allow the skin substitute to make better contact with viable tissue.

Not every wound requires the same type or amount of debridement. Your podiatrist determines what is appropriate based on the wound's condition.

How Is a Skin Substitute Applied?

The exact procedure depends on the product being used, but application generally involves positioning the skin substitute so it covers or conforms to the prepared wound bed.

The product may be trimmed or shaped to fit the wound and then secured according to its specific instructions. A protective dressing is placed over the treatment area.

Skin substitutes are not all identical. Some are human tissue allografts, some contain animal-derived materials, and others are engineered or acellular matrices. Each product can have different handling and application requirements.

Is Applying a Skin Substitute the Same as Having a Skin Graft?

No. A traditional skin graft typically involves removing skin from another area of the patient's body and surgically placing it over the wound.

A skin substitute is an advanced wound care product applied to the wound to provide coverage, structure, or a supportive environment for healing.

For a detailed comparison, read Skin Substitutes vs. Skin Grafts: What's the Difference for a Diabetic Foot Ulcer?

Does Applying a Skin Substitute Hurt?

The experience varies depending on the wound, the amount of sensation in the foot, whether debridement is performed, and the specific application technique.

Some patients with diabetic neuropathy have reduced sensation in the affected foot, while other patients may still experience tenderness or discomfort.

Your podiatrist can explain what to expect based on your individual wound and the treatment being performed.

What Happens Immediately After the Skin Substitute Is Applied?

The wound is generally covered with a protective dressing designed to keep the skin substitute in position and maintain an appropriate healing environment.

Your podiatrist will provide specific instructions regarding:

• How to protect the dressing
• Whether and when the dressing should be changed
• How much weight you can place on the foot
• Which shoes, boots, or offloading devices to use
• Whether activity should be restricted
• When you should return for follow-up

Do not remove or disturb the treatment area unless your wound care team has instructed you to do so.

Can I Walk After a Skin Substitute Is Applied?

That depends on the location and severity of the wound. Many foot ulcers develop or worsen because of repetitive pressure, so walking normally on the treated area may interfere with healing.

Your podiatrist may recommend an offloading device to reduce pressure from the wound.

Examples can include:

• A surgical shoe
• A removable walking boot
• Specialized padding
• Custom pressure-relieving footwear
• Other offloading devices

Following offloading instructions is especially important for patients with neuropathy who may not feel when excessive pressure is damaging the wound.

How Should I Care for the Dressing at Home?

Follow the wound care instructions provided by your podiatrist rather than replacing or removing dressings on your own.

Depending on the product and dressing used, you may be instructed to:

• Keep the treatment area clean and protected
• Avoid getting the dressing wet
• Leave certain dressing layers in place
• Change only designated outer dressings
• Continue using your offloading device
• Avoid barefoot walking
• Monitor the surrounding skin for changes

Product-specific instructions vary, so your individual wound care plan should take priority over general advice.

What Happens at the Follow-Up Appointment?

Your podiatrist will evaluate whether the wound is responding to treatment.

Follow-up may include:

• Measuring the wound
• Checking for new healthy tissue
• Evaluating drainage
• Looking for signs of infection
• Checking the surrounding skin
• Assessing whether pressure is being adequately relieved
• Deciding whether another application is appropriate

The treatment plan can then be adjusted according to how the wound is progressing.

How Do I Know Whether the Wound Is Healing?

Healing usually involves more than simply seeing less drainage.

Signs of progress may include:

• A decrease in wound size
• A decrease in wound depth
• Healthy granulation tissue
• New skin forming around the edges
• Less drainage
• Improved appearance of the wound bed

Wound measurements taken during follow-up provide a more reliable way to monitor progress over time.

What Warning Signs Should I Watch for After Treatment?

Contact your medical provider promptly if you notice signs that the wound may be worsening or infected.

Warning signs can include:

• Increasing redness
• New or worsening swelling
• Increasing drainage
• Pus or foul odor
• Skin becoming dark or discolored
• Increasing pain
• Fever or chills
• A wound that suddenly becomes larger or deeper

Patients with neuropathy should examine their feet carefully because serious changes can occur without significant pain.

Does a Skin Substitute Replace Regular Wound Care?

No. A skin substitute is an advanced addition to wound care, not a replacement for the fundamentals of healing.

Depending on your condition, continued treatment may include:

• Pressure offloading
• Wound cleaning and dressing management
• Debridement when appropriate
• Infection treatment
• Blood glucose management
• Circulation evaluation
• Nutritional support
• Management of swelling or other contributing conditions

Our foot wound care specialists develop comprehensive treatment plans based on the wound and the health factors affecting healing.

Get Advanced Care for a Chronic Foot Ulcer

If a diabetic foot ulcer or another chronic wound is not healing, advanced treatment may help provide the support the wound needs to progress. Our podiatrists can determine whether a skin substitute or another advanced wound care option should be considered.

Contact Annapolis Foot & Ankle Center to schedule a wound evaluation in Annapolis or Chester, Maryland.