[Study on the mechanical properties of sutures in the process of suturing].

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi

Tribology Research Institute, Key Laboratory for Advanced Technology of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, P.R.China.

Published: June 2019

Suture broken, knot slipping and tissue tearing are the main reasons of wound closure failure in clinical operation. Based on this, we simulated the suturing and healing operation by using a biological materials testing machine and investigated the tensile properties before and after knotting, relaxation property and friction property of three common sutures: silk, polyglactin 910 and polypropylene. Results show that the tensile property decreased after knotting. The tensile strength of polyglactin 910 and elongation of polypropylene were the largest. During the relaxation process, the sutures relaxed the most in the first 2 hours. The relaxation from less to more was: polyglactin 910, silk and polypropylene. Coating or monofilament could obviously reduce the surface roughness of sutures, and thus reduce the friction force of the suture-suture interface. The friction force of the suture-suture interface increased with the increasing load but did no change with the increasing velocity. The results can provide an important theoretical basis for the optimizations of suture design and knotting operation.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9929964PMC
http://dx.doi.org/10.7507/1001-5515.201711079DOI Listing

Publication Analysis

Top Keywords

polyglactin 910
12
friction force
8
force suture-suture
8
suture-suture interface
8
[study mechanical
4
mechanical properties
4
sutures
4
properties sutures
4
sutures process
4
process suturing]
4

Similar Publications

Background/objectives: The huge concerns associated with biofilm-related infections in surgical procedures, along with the antibiotic resistance demonstrated by an increasing number of bacteria, have highlighted the need for alternative and effective prevention approaches. The aim of this research was to develop novel antimicrobial coatings on surgical sutures for the prevention of surgical site infections through nanotechnology-based methods.

Results: The results demonstrated that although very low amounts of silver precursor were adopted for the treatments, the silver coating was effective against and antibiotic-resistant in reducing the potential risk of infection.

View Article and Find Full Text PDF

Purpose: To describe and evaluate the efficacy and safety of lacrimal sac to conjunctiva reconstructive ostomy for proximal lacrimal system reconstruction.

Methods: This retrospective study included 41 patients (32 cancer and 9 trauma; 36 primary and 5 secondary) who underwent lacrimal sac to conjunctiva reconstructive ostomy. The technique involves creating a direct connection between a surgical opening in the lacrimal sac, which maintains its bony attachments to prevent ostomy occlusion, and the medial conjunctiva (medial fornix, bulbar, and palpebral).

View Article and Find Full Text PDF

Purpose: Current treatments for retinoblastoma facilitate globe salvage but can result in vitreoretinal disorders that may require surgery. There is controversy on surgical approaches in eyes with retinoblastoma. Here we describe a transcorneal vitrectomy approach that avoids the use of chemotherapy or cryotherapy.

View Article and Find Full Text PDF

Purpose: Displacement minimization of seeds is crucial during surgery in brachytherapy; however, only a few reports have compared the operability of different seeds. TheraStrand-SL is a seed, in which TheraAGX100 is wrapped in polyglactin 910 thread, and intra-prostatic displacement is expected to be reduced compared with that of Thera-AGX100, owing to the complex shape of TheraStrand-SL. We conducted a prospective study on the operability and treatment outcomes of TheraAGX100 and TheraStrand-SL placement by a single operator.

View Article and Find Full Text PDF

Purpose: Despite there being different materials for orbital floor reconstruction available today, outcomes are still not satisfying. In recent years, ultra-high molecular weight polyethylene (UHMWPE) has gained popularity in the field of orthopedic surgery due to its good biocompatibility and low infection rate. With its three-dimensional compound structure, it combines high stability and ductility, making it a potential material to be used for orbital floor reconstruction.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!