Have you ever seen a big scar after a big burn or a big wound heals? Sometimes, no matter how much medicine you put on the wound, it takes a long time to heal. This is when doctors talk about a " skin graft ." What exactly does this mean? Is this something big and scary? No... Let's talk about everything very simply.
Simply put, what is a skin graft?
This is a very simple concept. Imagine that you have a torn or damaged part of your clothing. What do we do? We take another piece of fabric and sew it to cover the hole, right? A skin graft is like that. It is a surgical procedure. What we do is take a small piece of skin from a healthy part of your body (for example, your thigh) and transplant it to the damaged or missing part.
Within a few days of this transplant, the newly grafted skin begins to grow blood vessels. It then fuses with the surrounding skin and begins to function as one piece of skin. This is truly an amazing process.
When is a skin graft needed?
Usually, when we have a small wound, our skin can heal itself. But sometimes, the damage to the skin is so severe that it cannot heal on its own. That's when a doctor decides to perform a skin graft.
- Burns: Severe burns from fire, hot water, or chemicals can cause extensive skin damage.
- Infections: Some severe infections can cause a large area of skin to die.
- Skin cancer removal surgeries: To fill the void left after surgical removal of skin cancer.
- Skin ulcers and bedsores: Non-healing wounds on the legs caused by diseases such as diabetes, or pressure injuries in patients confined to bed.
- Very large wounds: A large area of skin was lost after a major accident.
Where do you get skin for grafting?
Most of the time, doctors take skin from the patient's own body for transplantation. We call this ``Autograft''. Because they use their own skin, the body does not reject it. That is the best and most successful method.
But imagine that about 80% of a person's entire body is burned. Then it would be difficult to find healthy skin on their own body, wouldn't it? In such special cases, other methods are used as temporary solutions.
- Allograft: Temporary use of skin from a deceased person (cadaver).
- Xenograft:The temporary use of the skin of an animal, usually a pig.
Remember, both ``Allograft'' and ``Xenograft'' are temporary . They are like a 'plaster' that is placed on the wound until it heals. As the wound heals under this temporary covering, the patient's own healthy skin grows, and then a permanent graft is made.
What are the main types of skin grafts?
When it comes to skin grafting, there are several main types depending on the thickness of the skin to be taken. Your doctor will choose the most suitable type based on factors such as the nature of your wound and its location.
| Graft Type | Description | Often used occasions |
|---|---|---|
| Split-thickness skin graft (STSG) | In this procedure, only the top layer of skin (epidermis) and part of the second layer (dermis) are removed. The donor site heals on its own within 1-2 weeks. | To cover a large area of the body (e.g., major burns). Skin is usually taken from areas such as the thighs, abdomen, and back. |
| Full-thickness skin graft (FTSG) | Here, the top layer of skin and the second layer are completely removed. This is thicker and takes longer to heal. The area where the skin was removed is closed with stitches. | For areas where appearance is important and not covered by clothing, such as the face. Skin is taken from areas such as the groin, armpits, and near the collarbone. |
| Composite graft | Here, skin is grafted together with another type of tissue, such as cartilage. This is a bit more complicated. | To repair damage to areas such as the nose, fingertips, and earlobes. |
What do you need to know before surgery?
Before the surgery, the doctor will talk to you and explain everything.
- You should tell your doctor about any medications you are taking (especially blood thinners). He or she may ask you to stop taking them for a while before surgery.
- Most importantly, if you smoke, you should stop smoking completely a few weeks before your surgery. Smoking constricts blood vessels and reduces blood flow to the wound site. This means that the new skin graft does not receive the oxygen and nutrients it needs. This increases the risk of it not adhering properly and being rejected.
- The doctor will decide on the best place to take the skin for the transplant (donor site) and the damaged area (graft site). The skin that is selected should be as similar in color and texture to the damaged area as possible.
What happens during surgery?
This surgery is done in a hospital. You are usually given general anesthesia, so you don't feel anything.
1. First, the surgeon cuts and removes the required amount of skin from the donor site.
2. Then, several small incisions are made in the area of skin that was removed, like a mesh. This is called `meshing`. This is done so that even a small piece of skin can be pulled together to cover a large area. Also, these holes create a path for fluids from the wound to drain out.
3. Finally, this prepared skin is placed over the damaged area (graft site) and secured with stitches or special staples.
4. Then, both areas (the skin graft site and the graft site) are thoroughly cleaned and covered with special dressings.
What are your responsibilities after the surgery?
The success of the surgery depends largely on how well you take care of it after the surgery. You need to take care of two areas - the skin graft site and the skin graft site.
You may need to stay in the hospital for a few days or a couple of weeks, depending on the size and type of implant. After you go home, you should follow your doctor's instructions carefully .
- How to care for the dressing: Keep the dressing as your doctor tells you. Ask for details about how to change it, how long to keep it on, and whether or not to soak it in water. You may be told to use creams.
- Protect the wound: This is very important. Avoid anything that can cause friction or pulling on the area until the skin graft is well attached. You will need to avoid lifting weights, running, jumping, or doing any exercises that could cause the skin graft to stretch for at least 3-4 weeks.
- Pain management: You may experience some pain after the surgery. Take the painkillers prescribed by your doctor on time.
- Follow-up: Be sure to go to the doctor's appointments to see if the wound is healing properly. You may also be referred for physical therapy (PT). This will help to increase the elasticity of the grafted skin and prevent scar tissue from tightening.
Are there any risks in this?
Most skin grafts are successful. But like all surgeries, there are some risks. The biggest risk is that the grafted skin may not adhere properly to the site (graft failure) . There are several reasons why this can happen.
- Blood or pus collecting under the grafted skin.
- Wound infection.
- Damage to the graft site during healing (e.g., a hard bump, a pull).
- Circulatory problems. This risk is much higher in smokers .
Other complications may include bleeding, contracture of the grafted skin, skin discoloration, loss/increase of sensation, and scarring.
The most important thing is to call your doctor immediately if you notice anything unusual, rather than staying home in fear.
If you have these symptoms, tell your doctor immediately.
- If the wound is bleeding excessively or pus is coming out.
- If you have severe pain that cannot be controlled even with painkillers.
- If you have symptoms of infection such as fever and chills.
A skin graft is a life-changing and very beneficial surgery. It can restore lost skin, improve appearance, and restore body function. So don't be afraid of it. If you follow your doctor's instructions exactly, you can achieve very good results.
Take-Home Message
- A skin graft is the replacement of damaged skin with healthy skin taken from another part of the body.
- This is a successful treatment method that is widely used in cases such as burns, non-healing wounds, and cancer surgeries.
- For the success of the surgery, it is essential to strictly follow the doctor's instructions after the surgery.
- If you are a smoker, quitting completely before and after surgery is very important for the healing process.
- If you experience symptoms such as excessive bleeding/pus discharge from the wound, severe pain, or fever, notify your doctor immediately.
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