Research of physical and mechanical characteristics of suture material in experiment in operations on liver

Abstract

Taking into account the peculiarities of the blood supply to the liver and the structure of its parenchyma, and, as a result, considerable difficulties in providing reliable hemostasis without additional traumatization, a surgeon needs to be careful when performing a surgical manipulation. Despite a large number of modern methods for stopping parenchymal bleeding, many practi-tioners give preference to classic methods of hemostasis, including ligation of bleeding vessels in the bulk of the organ using specialized sutures. One of the most serious complications of the use of suture material is cutting of organ tissue, which leads to enhanced bleeding and expansion of the area of damage. At the moment, the tactics of choosing suture material for surgical procedures is empirical. In this context, the aim of this study was to assess the physico-mechanical properties of suture material regarding its structure, and to develop a criterion for choosing surgical sutures for surgical procedures. For the study, the liver was removed out of corpses of males of 35 to 40 years of age, after which separate sections of 7.574 cm in size were obtained from it. Then a wound 3 cm long and 2 cm deep was made. The wound was sutured with a simple interrupted suture without tightening, but with application of one simple half-node. For suturing, catgut, twisted capron and polyglycolide thread were used. Attention was paid to the maximal force applied at the moment of cutting (Fmax) and the degree of pulling the thread at the moment of cutting (Lu). The analysis of the data was based on comparison of Fmax and Lu parameters. This method permits to refuse from the empirical approach to the choice of suture material for operations on the liver, and to develop a criterion for choosing surgical sutures.

Comparative Analysis of Mechanical Properties and Microbiological Resistance of Polyfilament and Monofilament Suture Materials Used in the Operation “Tooth Extraction”

“…Vicryl, Prolene, Glycolon, PGA Resorba in this study formed two groups of 12 samples each (six samples of each name) of mono- and polyfilament suture materials ( Table 1 ). The sample size was calculated using the formula’s sample size based on the results of a similar previously published study [ 9 ] (80% power, α = 5%). There were 24 samples in total.…”

“…In modern surgical dentistry, new suture materials are being developed and existing ones are being improved [ 7 ], alongside the improvement of methods for their application [ 8 ]. According to some authors, postoperative complications with unknown etiology may be the result of improper suturing technique, resulting in untying of knots and loss of flaps’ tension [ 9 ].…”