Surgical suture includes needle with an attached length of thread. The needles are made from stainless steel. Non-absorbable sutures are made from a variety of nonbiodegradable materials, which are not digested by body enzymes or hydrolyzed in body tissue, specifically, there are the following types: Nylon monofilament, Silk and Polypropylene.
Non-absorbable surgical suture ARES
1. Nylon monofilament
- Molecule: made from two types of polyamides are polyamide 6 or polyamide 6, 6.
- Advantages: Suture have smooth surface of the suture permit atraumatic passage and excellent sliding through the tissues, less tissue reaction and good wound closure.
- Used in closing external wound (skin suturing), joining soft tissues including eye surgery, microsurgery, neurosurgery, plastic surgery.
- Due to tendency to lose strength after a long period of implantation in the body due to hydrolysis, nylon sutures are not recommended for surgery of tissue structures requiring a long suture retention period.
- Molecule: made of non-absorbable synthetic monofilament surgical suture composed of an isotactic crystalline stereoisomer of Polypropylene.
- Elicits a minimal acute inflammatory reaction in the tissue, followed by gradual encapsulation of the suture by fibrous tissues.
- It is not subject to any degradation or loss of tensile strength caused by tissue enzymes.
- Used in suturing and joining soft tissues including in cardiovascular surgery, eye surgery, neurosurgery...
- Molecule: the suture is composed of an organic protein called fibroin.
- Advantages: The high technology used in braided thread ensures high tensile compact strength, which provides longer time to support the tissue.
- Used in general surgery, plastic surgery, dentistry, ophthalmology, gastroenterology, epidermis, cardiology, obstetrics and gynecology, neurology and threading.
TABLE 1 – AVERAGE KNOT-PULL LIMITS
TABLE 2 – STANDARD THREAD-NEEDLE ATTACHMENT
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