Mechanical properties of commercially available nylon sutures in the United States

Callahan, Travis L.; Lear, William; Kruzic, Jamie J.; Maughan, Cory

doi:10.1002/jbm.b.33600

Cited by 11 publications

(4 citation statements)

References 29 publications

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“…46 Tensile strength and KPS are one of the most relevant suture mechanical properties. 47 For this reason, these performances should be checked in every manufacturing step. In this study, the main effects of coating conditions on suture tensile strength and KPS of developed sutures are investigated.…”

Section: Discussionmentioning

confidence: 99%

Development and characterization of antibacterial braided polyamide suture coated with chitosan-citric acid biopolymer

et al. 2017

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Braided polyamide sutures are frequently used in dermatologic surgery for wound closure. However, braided sutures promote bacteria proliferation. In order to prevent wound complications due to this effect, antibacterial sutures should be used. The main objective of this study is the development of new non-absorbable antibacterial polyamide braided suture. This paper suggests new coating process that leads to obtain suture uniformly covered by antibacterial film enclosing chitosan, which is known for its antibacterial benefit. Mechanical properties and surface morphology of developed sutures were investigated by using mechanical tests. Sutures surfaces were also examined by scanning electron microscope, to perceive spreading of coating product on suture surface. In order to identify potential reactions between chemical compounds present in coating solution and suture material, sutures were analyzed by ATR-IF spectroscopy. It has been demonstrated that many eventual bonds between compounds present in coating solutions and polyamide macromolecular chain may occur. The existence of these bonds implies the fixation of biopolymer coating on suture surface. It has been demonstrated that uniform surface may be obtained by progressively applying coating solution containing little amount of chitosan on suture surface. We have also found that developed coating process has not affected mechanical properties of suture, which still meet United States Pharmacopeia requirement. Finally, antibacterial effects against four colonies, very widespread in hospitals, were studied. Prominent antibacterial effects of braided polyamide suture against two gram-positive ( S Aureus, S epidermidis) and two gram-negative ( E coli and P aeruginosa) colonies are presented. Optimal result of best properties is obtained by applying three layers of biopolymer coating comprising 1% chitosan and 10% citric acid. The new developed suture coating process appears as a promising method for obtaining important antibacterial effect with smooth suture surface.

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Section: Discussionmentioning

confidence: 99%

Development and characterization of antibacterial braided polyamide suture coated with chitosan-citric acid biopolymer

et al. 2017

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“…We used 8 times wound group bundle fiber that included hdECM in its microfibers and that showed an initial Young’s modulus of 0.125 MPa and UTSS of 50 MPa. While by no means could this fiber, according to these values, be considered a perfect match for the porcine cornea, they were more mechanically favorable for the cornea than is a nylon suture 37 – 39 . We then connected the bundle PLCL fiber to the surgical needle, detached from the surgical suture product (Ailee Co., Ltd, lot number 0300177), to use it as a surgical suture.…”

Section: Methodsmentioning

confidence: 98%

The use of microfluidic spinning fiber as an ophthalmology suture showing the good anastomotic strength control

Park

Yong

Cho

et al. 2017

Sci Rep

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Adjusting the mechanical strength of a biomaterial to suit its intended application is very important for realizing beneficial outcomes. Microfluidic spinning fiber have been attracting attention recently due to their various advantages, but their mechanical strength has unfortunately not been a subject of concentrated research, and this lack of research has severely limited their applications. In the current work, we showed the mechanical properties of microfibers can be tuned easily and provided a mathematical explanation for how the microfluidic spinning method intrinsically controls the mechanical properties of a microfluidic spinning fiber. But we were also able to adjust the mechanical properties of such fibers in various other ways, including by using biomolecules to coat the fiber or mixing the biomolecules with the primary component of the fiber and by using a customized twisting machine to change the number of single microfiber strands forming the fiber. We used the bundle fiber as an ophthalmology suture that resulted in a porcine eye with a smoother post-operative surface than did a nylon suture. The results showed the possibility that the proposed method can solve current problems of the microfibers in practical applications, and can thus extend the range of applications of these microfibers.

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“…Currently, clinically applied surgical sutures are mainly classified into two types: non-absorbable sutures and absorbable sutures. A nonabsorbable suture needs to be removed after the wound is healed, and the suture itself is considered not to be decomposed or absorbed and mostly at a lower price range and has stable physical properties [1,2]. However, Poor healing and scarring of suture wounds have been reported when non-absorbable sutures are used [3].…”

Section: Introductionmentioning

confidence: 99%

In Vivo Time-Lapse Observation of PLA/CL and PVDF Surgical Sutures by Optical Coherence Tomography

Wei

2023

BJSTR

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We applied Optical Coherence Tomography (OCT), which has the advantages of high speed and high resolution on imaging, to perform in vivo animal experiments on surgical sutures. A Spectral-Domain OCT system was used to scan the absorbable PLA/CL surgical sutures and Non-absorbable PVDF surgical sutures, both of which had been sutured on a hairless rat. Two kinds of surgical sutures, polylactic acid/ polycaprolactone (PLA/CL) compound surgical sutures, which is absorbable, and polyvinylidene fluoride (PVDF), which is non-absorbable, have been sutured on the back of a hairless rat. And a Spectral-Domain OCT was used to take the pictures of both surgical sutures and surrounding tissues every week till PLA/ CL sutures was absorbed and broken in order to record and analyzed the changings. As a result, the deposits on the surface of the suture that were observed over time were decomposed substances of keratinocytes and fibers. Furthermore, with the decomposition, the crystal structure of PLA/CL fiber became amorphous, and reflected signal was detected. Some void also appeared which shows that the proliferated part detached from the sutures and the epidermal layer. PLA/CL sutures finally got broken at the 16th week, with the diameter decreased from 220 μm to 180 μm. In vivo time-lapse observation of surgical sutures can be accurately performed by OCT. It is also able to scan not only the surface but also the internals structure like crystal changes of surgical sutures. What's more, with 40 μm decrease on diameter, PLA/CL sutures broke after 15 weeks.

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Mechanical properties of commercially available nylon sutures in the United States

Cited by 11 publications

References 29 publications

Development and characterization of antibacterial braided polyamide suture coated with chitosan-citric acid biopolymer

Development and characterization of antibacterial braided polyamide suture coated with chitosan-citric acid biopolymer

The use of microfluidic spinning fiber as an ophthalmology suture showing the good anastomotic strength control

In Vivo Time-Lapse Observation of PLA/CL and PVDF Surgical Sutures by Optical Coherence Tomography

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