A chromic catgut is a type of plain catgut that has been tanned with chromic salts to increase strength and slow disintegration. 29 Phagocytosis absorbs gut and is related with significant tissue inflammation, which can be harmful to recovery. In contrast, tissue inflammation may result in a faster breakdown of catgut.
A 5-0 chromic catgut suture run nasally to temporally is used to secure the graft’s inferior edge to the lower eyelid retractors. Each suture bite travels through the lower lid retractors, followed by the inferior edge of the hard-palate graft.
Where is graft positioned and chromic suture?
The graft is positioned so that the interior surface facing the eye is mucosa-lined tissue. To relieve ocular pain, the protective corneoscleral contact lens is removed and a 24- or 48-hour collagen shield is placed over the eye (optional). Sutures are tied over cotton pledgets to keep the lower eyelid stretched upward.
Gentamicin ointment is used on the eyes and sutures. In contrast, tissue inflammation may result in a faster breakdown of catgut. Plain gut has a median survival period in the oral cavity of 4 days, whereas chromic gut has a survival time of 2 to 3 weeks.
Why is catgut absorbable so unique a protein?
Catgut absorbable is a unique protein fiber that forms in the lower intestines of animals, most notably sheep and oxen. Calves’ digestive systems are treated with chromic salt solutions after being physically and chemically cleansed of soft tissues and other remnants.
Ribbon is acquired in large quantities and twisted into linked strands. The chromic salts are subsequently removed using the proper method. Because Catgut stiffens when it dries, making it more difficult to handle items created from it, chromic Catgut is usually stored in watery alcohol and glycerine to keep it from drying out.
The decision of how to hide the wound is decided only after the repair has been completed. When it is not possible to elevate laterally based flaps and stitch them in the midline over the wound, a U-shaped or inverted-U-shaped flap will generally serve.
What is Chromic Suture used for?
Chromic Catgut Suture is a twisting multifilament structure that seems to be monofilament. Chromic Catgut is treated with chromic salts to limit absorption and processed to boost absorption resistance. When absorbed, chromic sutures are sterile and generate just a minor tissue response.
Why do chromic catgut sustain tensile strength?
Chromic Catgut may sustain its tensile strength for roughly 20 days. Because foreign proteins are not readily exposed, chromic catguts are less likely than normal catguts to develop inflammatory and foreign object responses.
Sutures made of normal gut and chromic gut are formed up of many flanges that have been gently twisted, machine ground, and polished to resemble monofilament surfaces.
In the Nutshell
Chromic catgut absorbable sutures frequently absorb faster in damaged tissues. Unique sutures’ early tensile strength is reduced between 14 and 21 days and absorbed between 90 and 120 days. It is biologically inactive and non-adherent so you need to be very careful