Nonabsorbable Sutures
Nonabsorbable sutures are surgical sutures that cannot be absorbed by the body and are permanent in the area of continuous application, which must be removed from the application area later on.
About Nonabsorbable Sutures
Synthetic materials were developed in the late first half of the twentieth century. One of them is nylon. Monofilament nylon suture creates minimal reaction in the tissue. Another monofilament nonabsorbable sutures are polypropylene, which was developed in the 1970s. Polypropylene threads easily pass through the tissue, creating minimal reaction. Knot security and management during sewing are like nylon materials. Its advantage is that it is easy to see because it is painted blue. In addition to these, non-absorbable suture is very useful due to its rich variety. This situation causes the non-absorbable suture to have a wide usage area. Nonabsorbable sutures are not digested by body enzymes or by body tissue non-hydrolyzed sutures. Body parts can’t absorb and encapsulated where they are placed. They provide continuous tissue support. The risk of suture sinus formation is high. Examples of non-absorbable sutures; silk, stainless steel, polyester, cotton and polypropylene.
Usage Areas Of Nonabsorbable Sutures
Today, it is possible to find many nonabsorbable suture types of non-absorbable sutures. They can also be found as multifilament and monofilament. Multifilament is obtained by weaving more than one yarn fiber tissue in a braided manner. Monofilament sutures, on the other hand, are sutures consisting of a single string. The main usage areas of nonabsorbable sutures are as it follows;
- Cardiovascular surgery
- Leather closures
- Ophthalmic surgery
- General soft tissue approximation and/or ligation
- Orthopedics
- Hernia surgeries
- Neurology
- Plastic and reconstructive surgery
- Micro surgery
- Gastrointestinal surgery
- Gynecology and obstetrics
What Are Some Risks Of Nonabsorbable Suture?
Nonabsorbable suture material is for planned or unplanned wound during surgery or any trauma providing tissue integrity. Non absorbable suture supports wound healing and preventing infection,regaining natural functions and controlling bleeding, temporary/permanent wound support.They are materials of different structures used to provide implants or for the fixation of implants. Suture includes needles, tissue glue, binder clips and staples. Like everything in science and medication some material might have risks. Let’s talk about the risks of nonabsorbable sutures As a result of the body’s reaction to foreign tissue, there is a continuous inflammation around the suture material and its movement towards the skin and throwing it away (that is, the body accepts a foreign material and throws it out) During the healing process, tissue contraction (stretching) or the superficialization of the suture material as a result of the movement of the tissues towards the superficial skin layers, the mechanism of which is not fully understood, are among the risks of non-absorbable sutures.
How are Suture Materials and Suture Technique Choosen?
First of all, needle and thread properties should be known.In which area/tissue the suture will be placed, what is the nature of the tissue, how is the healing process, suture material. What are the characteristics of the yarns (tension strength of the sewing thread, ease of use and passage through the texture, knotsafety, suture dragging of the tissue, short and long-term reactions in the tissue, suture handling, memory and the compatibility of the nonabsorbable sutures and the tissue are taken into account. At the same time there are many factors that affect healing. These are surgical technique, temperature value, oxygen level,presence of infection, necrotic debris, smoking, nutritional status, drugs taken, radiotherapy intake, immunological failure, mechanical failure, suture materials, nonabsorbable suture techniques, patient’s presence of chronic disease, biomechanics/pathology of wound healing, presence of foreign body and other the main reasons are counted.
What Is The Ideal Suture?
There are lot’s of nonabsorbable suture types. There are some main prioritys to be careful about when choosing the ideal suture. It should be easy to hold and manipulate, used in all kinds of procedures, good tissue should disappear after fusing, have high breaking strength, have high knot security.It should be sterile, should not have capillarity.While determining the places of use according to the characteristics of the suture; Strength of the suture, rate of absorption, tensile strength loss, elasticity, plasticity, pliability, coefficient of friction, yarn shape, pharmacological structure/chemistry-temperature, biodegradation properties, physical structure, capillarity, loss of tensile strength, total absorption time are taken into account. Strength of the suture: It is the“breaking force” required to break on a section. Absorption rate: The structure of the nonabsorbable suture is related to whether it is absorbed or not. It degrades rapidly in tissues.Stitches that lose their durability during the day are considered absorbable. more than 60 days.Sutures that rely on are called nonabsorbable. Exceptionally known some nonabsorbable sutures. Sutures sometimes degrade before this time. Adding to these;
- Tensile strength loss
- Tissue Support Time
- Total Absorption Time
- elasticity
- plasticity
- Memory of the column pliability
- Capillarity
- Coefficient of friction