Monnet et al: Influence of conventional versus unidirectional barbed suture on leakage pressures in canine vesicourethral anastomosis: An ex-vivo study
Veterinary Surgery 5, 2023

🔍 Key Findings

• Leakage pressure was not significantly different between unidirectional barbed suture (UBS) and conventional (C) suture groups (p = .236).
• UBS group had a 28% lower median leakage pressure than the C group (8.6 mmHg vs. 11.7 mmHg), suggesting higher biological risk of leakage.
• UBS significantly reduced suturing time (median 12.7 vs. 17.3 minutes; p < .0002).
• Fewer suture bites were needed in the UBS group (median 14 vs. 19; p = .012).
• No suture breakage or urethral narrowing occurred in either group.
• Leakage site distribution (ventral vs lateral) was similar between groups; no dorsal leaks noted.
• Leakage occurred as low as 5 mmHg in UBS group, indicating potential for postoperative extravasation.
• UBS may aid intracorporeal suturing in minimally invasive prostatectomy, but catheterization remains necessary postoperatively.