If you’ve ever had a surgery—especially something involving your heart, blood vessels, or a hernia repair—there is a high chance the surgeon used Prolene.
What is Prolene/Premilene?
Prolene is a brand name for a synthetic, non-absorbable monofilament suture. In plain English:
- Synthetic: It’s man-made (plastic-based).
- Non-absorbable: Your body cannot dissolve it. It stays there forever unless a doctor physically removes it.
- Monofilament: It is made of a single, smooth strand (like fishing line), rather than being braided like a rope.
Premilene is simply the version made by a different company (B. Braun), while Prolene is made by Ethicon (Johnson & Johnson). They are essentially the same tool used for the same jobs.
What is it Used For?
Because these sutures are incredibly strong and don’t break down, they are used for parts of the body that need long-term support:
- Heart and Blood Vessel Surgery: It’s the “gold standard” for sewing blood vessels together because it’s smooth and doesn’t cause clots.
- Hernia Repairs: It is often used to secure mesh in place.
- Skin Closures: Used on the surface for cuts that need to stay shut for a while (like on your foot or over a joint).
- Orthopedic Surgery: Tying down ligaments or tendons.
Ingredients
Prolene and Premilene are made of:
- Isotactic Polypropylene: A type of high-strength plastic.
- Copper Phthalocyanine Blue: A dye added so the surgeon can actually see the thin thread against your red tissues or skin.
How Does It Work?
Prolene works by being biologically inert. This means your body doesn’t see it as a major “threat,” so there is very little inflammation or scarring compared to other materials.
Because it is a single smooth strand, it glides through your skin and muscle without “sawing” at it. Once the surgeon ties the knot, the plastic holds its shape and strength indefinitely, providing a permanent internal “scaffold” for your tissue.
Application
it comes in different sizes (gauges).
- Fine sizes (6-0 or 7-0): Used for delicate areas like the face or small blood vessels.
- Thick sizes (0 or 1): Used for heavy-duty jobs like closing the abdominal wall.
A surgeon or trained professional applies it using a sterile needle attached to the thread. If used on the skin, it is usually removed after 7 to 14 days. If used inside the body (like on a heart valve), it stays there for life.
Potential Side Effects
While very safe, any foreign object in the body can have risks:
- Irritation: You might feel a small “poke” or bump under the skin if the knot is close to the surface.
- Infection: If bacteria get into the wound during or after surgery, the suture can act as a place for them to hide.
- Suture Spitting: Sometimes, the body tries to push a permanent stitch out through the skin months later (it looks like a tiny blue hair poking out).
- Knot Slippage: Because the material is so smooth (like plastic), knots can occasionally come untied if not secured correctly by the surgeon.
Frequently Asked Questions (FAQ)
Will Prolene set off a metal detector at the airport?
No. It is made of plastic, not metal.
Why is it blue?
Human insides are mostly red, pink, and yellow. A bright blue thread is very easy for a surgeon to see, especially during a long or complicated procedure.
Does it have to be removed?
If it’s on your skin (visible), yes. If it’s inside your body (around an organ or bone), it’s meant to stay there forever.
Conclusion
Prolene and Premilene are the “reliable veterans” of the operating room. They are chosen when strength and cleanliness are the top priorities. Whether it’s fixing a heart or closing a deep scrape on your leg, these blue plastic threads are designed to keep you held together safely while you heal.
