中国实用外科杂志2025，Vol.45Issue(4)：469-472,4.DOI:10.19538/j.cjps.issn1005-2208.2025.04.16
打结时拉线方向对结安全性影响研究
Research on effects of pulling direction on knot security during knot tying
摘要
Abstract
Objective To determine the effects of pulling direction on knot security during knot tying.Methods A research on knot tying was conducted at Department of Basic Operative Surgery,Army Medical University in September 2022.Knots were tied by the same person with the hands pulling in constant direction or in alternate directions,respectively.All knots were tied using silk suture in 3-0 gauge.For each kind of knots with 2-7 throws,100 knots were tied.A tensiometer was used to measure the tensile strength of the knots.Compare the tensile strength and untying rate of knots with different throws produced by two different cable pulling methods.Results For knots with 2-7 throws,the tensile strength of the ones tied by pulling in constant direction was lower than that of the ones tied by pulling in alternate directions,respectively.Besides,the knots with 5 throws tied by pulling in constant direction did not achieve the maximum tensile strength(22.0±7.3)N,while those tied by pulling in alternate directions achieved the maximum tensile strength(26.5±3.1)N.For knots with 3-7 throws,the untying rate of the ones tied by pulling in constant direction was higher than that of the ones tied by pulling in alternate directions,respectively.Besides,the knots with 5 throws tied by pulling in constant direction did not achieve the minimum untying rate(33％),while those tied by pulling in alternate directions achieved the minimum untying rate(10％).For the unraveled knots with 2-5 throws,the tensile strength of the ones tied by pulling in constant direction was lower than that of the ones tied by pulling in alternate directions,respectively.The unraveled knots with 5 throws tied by pulling in constant direction was just(12.2±3.7)N,while those tied by pulling in alternate directions could reach(18.9±4.5)N.Conclusion Pulling in constant direction results in inferior knot security.Although it could be compensated by increasing the throw count,considering that suture was foreign body,it is advisable to achieve superior security with fewer throw count.关键词
外科基本技术/打结/结安全性Key words
basic surgical techniques/knot tying/knot security分类
医药卫生引用本文复制引用
郭洪峰,侯晓宇,代薇薇,廖德志,文灿..打结时拉线方向对结安全性影响研究[J].中国实用外科杂志,2025,45(4):469-472,4.基金项目
Chongqing Municipality Higher Education Teaching Reform Research Project(No.213490) （No.213490）
Key Project of Educational Reform Research,Army Medical University(No.2020A06) 重庆市高等教育教学改革研究项目(No.213490) （No.2020A06）
陆军军医大学教育改革研究重点课题项目(No.2020A06) （No.2020A06）
