Fig. 1

The RBL modified technique proposed by the authors. A, E A “fisherman's knot” was made with no. 4 silk wire, and set in front of the rubber ring. B, F Release the rubber ring and coil to the bottom of the tissue together. C, G Use the needle holder, hold one thread and keep the coil under the rubber ring and manually tighten the other line by hand. D, H Schematic of the final effect