Quick Overview

• Plain catgut and chromic catgut are natural absorbable sutures.
• Surgeons make them from animal collagen.
• Plain catgut dissolves fast. It works well for mucosal membranes.
• Chromic catgut contains salts. These salts make the suture last longer inside the body.

What Plain Catgut Is and How It Works

Plain catgut comes from the gut lining of sheep or the serosa of cows. It acts as a sterile thread for surgery. Doctors use this thread to close wounds because the body naturally digests it. The body uses special proteins called proteolytic enzymes to break the collagen down. This process happens gradually until the suture vanishes. You might see it as a yellowish thread. It stays soft because it sits in a mix of alcohol and water inside its package.

Definition: Plain catgut is a natural material made from purified animal connective tissue that the body absorbs over time.

This suture loses most of its holding strength within 7 to 10 days after a procedure (Source: Orion Sutures). Because it breaks down quickly, it is a common choice for surgical sutures in areas that heal at a rapid pace. Always talk to a medical professional if you have questions about how these materials work in your specific recovery.

What Chromic Catgut Is and How It Works

Chromic catgut is a type of natural suture made from collagen that doctors use during surgery. It goes through a special tanning process using chromium salts during its creation. This treatment changes the color of the thread to a dark brown. Because of this chemical bath, the body takes longer to break down the material.

Definition: Chromic catgut is a natural collagen-based thread treated with chromic acid salts. This process increases its resistance to body enzymes and helps it keep its strength for a longer time.

According to Universal Sutures, this suture remains strong in the tissue for 14 to 21 days. This provides the wound with more time to heal properly. The chromium salts act like a preservative that makes the collagen fibers harder for the body to digest. You can learn more about surgical supplies at Nuvo Medsurg.

How Manufacturing Changes These Two Sutures

Plain catgut and chromic catgut differ mainly because of the chemicals used during the final stages of production. Companies like Nuvo MedSurg use high-purity collagen to make sure the thread has a consistent thickness. Manufacturers make plain catgut without extra chemicals so it absorbs into the body at its natural speed. Chromic catgut goes into a chromic acid bath. This bath creates strong links between the collagen molecules, which makes the material much more durable.

Both types must be sterile before a surgeon uses them. As stated by Microfine Sutures, factories use either Ethylene Oxide or Gamma radiation to clean the threads. This removes germs and makes the sutures safe for medical procedures. If you have questions about specific medical devices or wound care, it is always best to consult with a doctor for personalized advice.

How Long Each Suture Stays Strong

The tensile strength and absorption period of a suture determine how long it provides wound support. Surgeons select different materials based on how fast a specific tissue heals.

• Plain catgut loses 70 percent of its strength by day 7. It disappears completely within 60 to 70 days.
• Chromic catgut keeps about 50 percent of its strength for 14 to 21 days. It takes 90 days to leave the body.

The speed of absorption changes depending on the patient. If an area has high blood flow, the body breaks down the material faster. Infection also speeds up this process. For a small cut inside the mouth, a surgeon typically uses plain catgut because the tissue heals in less than a week. This choice is quite judicious for quick repairs.

When Surgeons Pick Plain Catgut for Patients

Plain catgut is the main choice when a doctor needs to repair tissues that mend themselves very quickly. Surgeons choose this material because it effectively supports the area during the first few days of healing.

• Mucosal repair in the mouth or nose happens fast, making this suture a good fit.
• It works well for tying off small blood vessels that do not need long-term pressure.
• Dental surgery often involves this material since it falls out naturally once the gums heal.
• It is also helpful for the subcutaneous tissue layers when a doctor wants to limit the chance of scarring.

The material dissolves on its own, so patients often avoid a second trip to the clinic for removal. A doctor decides which suture to use based on the unique needs of the wound. Always speak with a medical professional if you have concerns about your recovery or the type of material used in your surgery.

Where Chromic Catgut Works Best in the Body

Surgeons choose chromic catgut when internal tissues need support for longer than one week. It provides a reliable hold as the body begins its natural repair process.

• Doctors use it in urology to repair tissues in the urinary tract.
• It is common in gynecology, especially for closing an episiotomy after childbirth.
• Surgeons prefer it for suturing the uterus and other smooth muscle layers.
• It helps keep wounds closed in areas that move often, which lowers the risk of the edges pulling apart.
• Ophthalmologists use it during eye surgery when they need a natural material to hold delicate tissues (Source: Atlas Medical).

How the Body Reacts to Natural Catgut

The body treats catgut as a foreign substance. Because it is a protein, the immune system sends white blood cells to the area. These cells slowly break down and digest the suture material.

• Both plain and chromic catgut create more of a tissue reaction than synthetic options like PGLA.
• Plain catgut usually triggers a faster inflammatory response because it dissolves in the body quickly.
• Chromic catgut resists this digestion for a longer period because of the chromic salt treatment.
• A common myth suggests catgut comes from cats, but it actually comes from the intestines of sheep or cows.
• Doctors avoid using catgut for heart or brain surgeries because these parts of the body need long-term stability that this material cannot provide (Source: ScienceDirect).

Always talk to a medical professional if you have questions about specific surgical materials or recovery procedures.

Frequently Asked Questions

Is Catgut Made from Cats?

No, it is made from the collagen of sheep or bovine intestines.

Does Chromic Catgut Need to Be Removed?

No, it is an absorbable suture that the body digests naturally over 90 days.

Why Is Catgut Kept in Liquid?

The alcohol-water solution keeps the natural fibers flexible and prevents them from becoming brittle.

Which Suture Is Stronger?

Chromic catgut is stronger for a longer period because the chromium treatment slows down its breakdown.

Can Catgut Cause an Allergic Reaction?

Yes, because it is a natural animal protein, some patients may experience more redness or swelling than with synthetic options.