COMPARISON TENSILE STRENGTH OF NATURAL AND SYNTHETIC ABSORBABLE SUTURES

TJOKORDA GDE TIRTA NINDHIA; PUTU ASTAWA I.; TJOKORDA SARI NINDHIA; WAYAN SURATA I.

doi:10.22159/ijap.2019.v11s5.T1011

Authors

TJOKORDA GDE TIRTA NINDHIA Department of f Mechanical Engineering, Engineering Faculty, Udayana University, Jimbaran, Bali, Indonesia.
PUTU ASTAWA I. Department of Orthopaedic Surgery and Traumatology, Medical Faculty, Udayana University, Denpasar, Bali, Indonesia.
TJOKORDA SARI NINDHIA Department of Veterinary Medicine, Faculty of Veterinary Medicine, Udayana University, Denpasar, Bali, Indonesia.
WAYAN SURATA I. Department of f Mechanical Engineering, Engineering Faculty, Udayana University, Jimbaran, Bali, Indonesia.

DOI:

https://doi.org/10.22159/ijap.2019.v11s5.T1011

Keywords:

Comparison, Tensile strength, Natural, Synthetic, Absorbable, Sutures

Abstract

Objective: The aim of the investigation is to evaluate and to compare the tensile strength of commercial natural and synthetic absorbable suture
materials currently used in surgery. The natural absorbable sutures of chromic catgut are prepared for this purpose as well as commercial synthetic
absorbable sutures made from polyglycolide.
Methods: The analysis has been carried out following the standard test method for tensile strength and Young’s modulus of fiber ASTM C1557-03.
Measuring the diameter of each suture has been carried out with an optical microscope to determine the accuracy of manufacturers’ data. Tensile
testing has been performed to evaluate the tensile strength of each type of sutures. The modulus elasticity and strain (ϵ) obtained are also presented.
Results: The results show that sutures made from braided synthetic material of polyglycolide (violet coated) present a tensile strength remarkably
superior (1070.292 MPa) to that of natural absorbable sutures of chromic catgut (392.276 MPa). Using optical macro microscope analysis,
monofilament sutures present less surface irregularities than multifilament polyglycolide sutures. Chromic catgut monofilament sutures present less
surface irregularities than multifilament polyglycolide.
Conclusion: Tensile test of absorbable sutures was conducted in this research. Two types of absorbable sutures were investigated and compared. It is
found that sutures made from braided synthetic material of polyglycolide (violet coated) having much better tensile strength comparing with sutures
made from natural material (chromic catgut monofilament).

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