Who Should Use Nonabsorbable Sutures
Who should use nonabsorbable sutures is a question best answered by a doctor or a professional. Different suture types work for different wounds and situations.
What is Suture
Non absrobable or absorbable suture material is used in surgery to hold the wound together and provide the necessary support during wound healing. The main factors affecting the choice of suture material are the type and strength of the tissue to be sutured, the healing time of the tissue, the properties of the suture material, and the interaction between suture and tissue.
When asked who should use nonabsorbable sutures, there are criteria to be considered among doctors. These criteria are:
- voltage strength
- ease of passage through the tissue
- knot security
- stitch dragging texture
- short and long term reactions in tissue
- Handling of the absorbable sutures list items, ease of use and packaging feature that will enable it to come out of the package with minimum memory.
Needles and Threads
The features expected from an ideal needle are that the needle should be rigid enough not to bend but flexible enough to bend without breaking, creating minimal tissue trauma, high sharpness, corrosion and rust resistance, stable, peel resistant and sterile.
All real stainless steel needles contain at least about 12% chromium, providing a thin layer of chromium oxide on the surface that protects against oxygen. Addition of a high amount of nickel to it provides higher resistance to bending and breaking. Doctors Who should use nonabsorbable sutures, should know these different needle types;
- Straight needles: in skin sutures, gastrointestinal tract, oral and nasal cavity, pharynx and tendon sutures,
- Half-curved needles in skin absorbable sutures,
- 5/8 round needles in genito-urinary system, cardiovascular system, oral and nasal cavity,
- Compound needles are used in anterior segment of the eye, oral surgery, plastic and vascular surgery.
The composition of the wire, its physical properties, its diameter, the design of the needle, the shape of the needle tip, the production process, and the completion of the needle surface are important factors in ensuring needle sharpness and determining who should use nonabsorbable sutures can ensure the patient for a good result. The sharpness of cutting edge needles is increased by electrohoning (electronic sharpening), refinement of needle tip configuration and angles, and silicone coating.
Using the Right Needle
The following features should be considered in the use of needles; The porteq should contact the needle at one point from the outside and two from the inside, the porteq should be 1/3 of the length from the tail. Absorbable suture types covered with silicone pass through the tissue easily.
Round needles are used for all kinds of tissues except leather. Needle breakage should be high. Shaping feature should be at least. It should be resistant to bending and deformation and should not break.
The joining of needles and thread can be through holes created with laser. Since the hole depth of laser-pierced needles is small, the distance of use is longer when held with a porteq. Since the hole depth of the channeled needles is high, the distance of use is short when held with a porteq.
The places of use are determined according to the properties of the yarns. It is necessary to know some definitions in order to determine the usage areas. So the person who should use nonabsorbable sutures should be a professional doctor with all this knowledge.
The Tensile
The tensile strength defines the ‘breaking force’, the force required for the seam to break with a complete cross-section at both ends, without disturbing its structure. The more tension the tissues are under, the higher the tension strength of the yarn used should be. Thin threads with low tensile strength should not be used in high tensile tissues and wounds. The doctor who should use nonabsorbable sutures must make a distinction between the melting rate of the suture material and the rate of loss of tensile strength.
Although the rate of dissolution is important for non absorbable sutures complications that occur in the late stage, the rate of loss of tensile strength is of greater importance for surgeons, given the primary task of suture, namely its ability to keep tissues close to each other during the healing period.
Tensile Strenght
When assessing the in-vivo tensile strength of a fusible seam, the manufacturer’s specific measurements of its holding capacity should be given instead of the percent preservation of the initial tensile strength.
Tensile strength standards for synthetic fusible absorbable suture material types have been established by the USP. If manufacturers use these standards to describe tensile strength, surgeons may have a valid clinical perspective for evaluating suture performance.
- The use of USP standards is especially important when there are significant differences in the initial tensile strength of synthetic seams.
- Plasticity (shapeability) is the property of keeping the new shape and length that the yarn has taken after being stretched or pulled.
- Pliability is the ability of the yarn to be bent, twisted and folded.
- The friction coefficient is a measure of the resistance between the yarn and the fabric itself, it indicates the slipperiness. The person Who should use nonabsorbable sutures should be able to calculate the slipperiness.
- Threads are classified as mono or multifilament according to their shape. Its dimensions are also evaluated according to USP standards, with the metric system.