Statistical analysis
Statistical analysis was performed using R version 4.0.1 (R Project for Statistical Computing, Vienna, Austria), while GraphPad Prism version 8 (GraphPad Software, La Jolla, CA, USA) was used for graphical illustrations. Data were analysed using the intention-to-treat population. Assuming a difference of 11 min suture time between the two groups and s.d. of 22 min, a total of 38 patients per intervention group were calculated (1:1 ratio) to be necessary for primary analysis with a significance level α = 0.05 and a power of (1 − β) = 0.8 (two-sided test) based on previous studies