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Tensile Performance of Nonsterile Suture Monofilaments Affected by Test Conditions

University of Otago, Dunedin, New, Zealand

R.M. Laing

University of Otago, Dunedin, New, Zealand

D.J. Carr

University of Otago, Dunedin, New, Zealand

B.E. Niven

University of Otago, Dunedin, New, Zealand

Selection of a suture material typically depends on its tensile properties, but in the absence of an international standard test method, a comparison of properties is problem atic. A series of experiments is conducted to determine the tensile performance of non-knotted and knotted non-sterile suture monofilaments, and the effect of test conditions on this performance. Using the ear and cut loop technique, the factorial experiment includes three gauge lengths, three crosshead speeds, three non-sterile suture monofila ments, and five knot configurations. Each combination of variables is replicated five times. Different test conditions affect the ultimate strain and tenacity of both knotted and non-knotted monofilaments. Ultimate strain values are lower with increasing gauge length (when tested at the same crosshead speed) and crosshead speed (when tested at the same gauge length). All monofilaments are characterized by higher tenacity values with in creasing gauge length (at the same crosshead speed) and lower tenacity values with increasing crosshead speed (at the same gauge length). Load-extension curves and visual images of selected monofilament sutures are provided.

Textile Research Journal, Vol. 74, No. 1, 83-90 (2004)
DOI: 10.1177/004051750407400115


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