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What is Suture?

Suture is a strand used to ligate the blood vesselsand approximate the tissues.

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THE IDEAL SUTURE

 An ideal suture must have following properties:

Use for any procedure

Easy to HandleMinimal Tissue Reaction

High Breaking Strength

Holds Knot Securely

Absorbable

Predictable Absorption

Sterile

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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 afterrelief 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 separationwound edge occurs.

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Suture sizeSize 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.

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CLASSIFICATION OF SUTURESABSORBABLE NONABSORBABLE

MONOFILAMENT MULTIFILAMENT (BRAIDED)

SYNTHETIC NATURAL

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ABSORPTION TERMINOLOGY 

(Absorbable Sutures)

LOSS OF TENSILE STRENGTH

ABSORPTION OF MASS

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Loss of Tensile Strength DefinitionTensile Strength retention refers to the amount of strength“INVIVO” that a suture material has retained.

This can be measured in days and as a percentage of originalstrength

Loss of Tensile strength can take place without any visibleloss of suture bulk

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Absorbable

PGA

Polyglactin 910

Polydiaxonone

PolyglecaprolactoneCatgut

Non – Absorbable

Nylon

Silk

Polypropelene

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Factors that determine sutureselection

Surgeons familiarity with the suture

Physical & biological characteristics of the suture

Healing characteristics of the tissue in which it isplaced

Presence of infection or contamination

Patients age, weight and status of health and

expected postoperative course of the patientCosmetic results

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Thank You

HLL Lifecare Limited 

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