Handling characteristics of braided suture materials for tight tying

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Abstract
The establish criteria for characterizing synthetic sutures, the handling characteristics of silk suture were analyzed. The characteristics that distinguish silk suture from other braided suture materials are its good “knot security” and relatively low “tiedown resistance.” Analytic consideration of knot security suggests that not only superficial friction but also resistance force produced by cross‐sectional deformity of braided threads plays an important role in silk's superior performance. Results of a “pullout friction test,” developed to quantitatively evaluate resistance produced by surface friction and cross‐sectional deformity suggest that the superiority of silk thread can be explained in terms of high static withdrawal resistance under low loads and relatively low dynamic withdrawal resistance under high loads. © 1993 John Wiley & Sons, Inc.

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