What is Suture? Suture is a strand used to ligate the blood vessels and approximate the tissues.
THE IDEAL SUTURE An ideal suture must have following properties: Use for any procedure Easy to Handle Minimal Tissue Reaction High Breaking Strength Holds Knot Securely Absorbable Predictable Absorption Sterile
Characteristics of Sutures Absorbable Breaking strength – Limit of tensile strength at which suture breaks
Capillarity – Extent to which body fluid absorbed in the body Elasticity- Measure of the ability of the material to gain its original form after deformation (Silk) Knot strength – Amount of force necessary to cause a knot to slip Memory – Inherent capability of suture to return to or to maintain its original gross shape – Polypropylene
Plasticity – Measure of the ability to deform without breaking and to maintain a new form after relief of the deforming force - polypropylene
Pliability – Ease of Handling Tensile strength – Amount of tension or pull the suture can withstand before it breaks Wound breaking strength – Limit of tensile strength of healing wound at which separation wound edge occurs.
Suture size Size refers to the diameter of the suture strand. The more zeroes characterizing a suture size, the smaller the resultant strand diameter (eg, 4-0 or 0000 is larger than 5-0 or 00000). The smaller the suture, the less tensile strength of the strand.
CLASSIFICATION OF SUTURES ABSORBABLE
ABSORPTION TERMINOLOGY (Absorbable Sutures) LOSS OF TENSILE STRENGTH
ABSORPTION OF MASS
Loss of Tensile Strength Definition Tensile Strength retention refers to the amount of strength â€œINVIVOâ€? that a suture material has retained. This can be measured in days and as a percentage of original strength Loss of Tensile strength can take place without any visible loss of suture bulk
Absorbable PGA Polyglactin 910 Polydiaxonone Polyglecaprolactone Catgut Non â€“ Absorbable Nylon Silk Polypropelene
Factors that determine suture selection Surgeons familiarity with the suture
Physical & biological characteristics of the suture Healing characteristics of the tissue in which it is placed
Presence of infection or contamination Patients age, weight and status of health and expected postoperative course of the patient Cosmetic results
Thank You follow us here
HLL Lifecare Limited WWW.SUTURES.IN