Roedner's knot is used for which structures?

• A. Blood vessels, appendix, fallopian tube, cut end of cystic duct
• B. Nerves
• C. Bone
• D. Lungs

Answer: (A)

Roedner’s knot is a slip ligature designed for secure, rapid closure around small tubular structures in laparoscopy. Its strength comes from tightening smoothly and staying secure as tension is applied, which is ideal when working in a confined space and you need to seal off a duct or vessel quickly.

This knot is particularly useful for structures like blood vessels, the appendix, the fallopian tube, and the cut end of the cystic duct, where a reliable ligature prevents bleeding or bile leakage after transection. It’s not typically used for nerves, bone, or lung tissue, which require different techniques or suturing approaches due to their different properties and healing needs.