尸体痉挛
裂开
纤维接头
极限抗拉强度
极限荷载
医学
置信区间
事后
伤口裂开
外科
口腔正畸科
材料科学
结构工程
复合材料
内科学
工程类
有限元法
作者
Nicole Look,Francisco Rodríguez-Fontán,Todd Baldini,Bennie Lindeque
标识
DOI:10.1016/j.injury.2022.09.026
摘要
Abstract
Background
The suture material and pattern utilized to maintain the skin edges in proximity allows for successful primary wound healing. No prior studies have evaluated the tensile strength of different suture patterns on human cadaveric skin. This study evaluates the tensile strength of four single suture patterns: simple (S), horizontal-mattress (HM), vertical-mattress (VM), and a novel stich termed Lindeque locking (LL). Methods
Four skin closure patterns were tested on human cadaveric skin using 3–0 nylon – S, HM, VM, LL – totaling four groups with twelve samples each. A tensioning device applied 1 N of force/second in a linear fashion. The primary outcome measures were: (i) wound dehiscence force, and (ii) ultimate load to failure. Statistics included one-way ANOVA with post-hoc Tukey tests. Results
The LL stitch had the greatest dehiscence force (198.60 N) and ultimate load to failure force (211.13 N) but was only significantly greater on both outcomes versus HM (104.81 N; 95% confidence interval [CI], 65.7 to 121.9; p< 0.001) and (120.79 N; 95% CI, 63.5 to 117.2; p < 0.001), respectively. There was no significant difference between LL and S for dehiscence, nor for the ultimate load to failure (186.90 N and 195.08 N, respectively). The LL pattern was significantly greater for an ultimate load to failure, but not for dehiscence when compared to VM (173.9 N and 171.1 N, respectively). Of all patterns, HM had significantly less withstanding force. Conclusions
The Lindeque Locking stitch demonstrated the greatest dehiscence force and tensile strength. It may decrease the risk of wound dehiscence for high tension wounds.
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