New technology applications: Knotless barbed suture for tracheal resection anastomosis

作者：Bush Carrie M; Prosser John D; Morrison Michele P; Sandhu Guri; Wenger Karl H; Pashley David H; Birchall Martin A; Postma Gregory N; Weinberger Paul M^*

来源：Laryngoscope, 2012, 122(5): 1062-1066.

DOI：10.1002/lary.23229

• Tracheal resection
• tracheal anastomosis
• barbed suture

Objectives/Hypothesis: Tracheal resection anastomoses are often under tension and can be technically challenging. New suture materials such as V-loc (barbed, knotless wound closure device) may offer advantages over conventional methods. The objective of this study is to determine if a running V-loc suture is of comparable tensile strength to conventional closure.
Study Design: Laboratory based study of human cadaveric tissue.
Methods: Fresh human cadaveric tracheas were dissected and incised into segments. Anastomosis of adjacent segments was then performed with either submucosal interrupted 3-0 Vicryl, or a running submucosal 3-0 V-loc suture. Anastomosed specimens were stretched to failure on an Instron force tension machine. Surgeon satisfaction was recorded by visual analog scale (VAS).
Results: The tensile strength of 12 tracheal anastomoses was tested. Video documentation of V-loc suture technique and anastomosis failure was recorded. In both Vicryl (80%) and V-loc (100%) anastomoses, failure occurred at the membranous intercartilaginous region. In 20% of the Vicryl anastomoses, the suture was noted to break prior to tissue failure. Anastomoses with V-loc suture had equivalent failure force (mean, 59 N) compared to interrupted Vicryl (51 N), with P = .57. On VAS, surgeons were more satisfied with V-loc suture closure compared to interrupted Vicryl closure (paired t test, P = .003).
Conclusions: Tracheal anastomosis with running v-loc suture is a feasible alternative to conventional closure with interrupted Vicryl suture. V-loc suture provided a surgical advantage by improved ease of use.

• 出版日期2012-5