Half hitch knot surgery. Having the loose loop disappear into a slip knot as the throws are being laid down is avoided. In this knot, two half-hitches are placed in opposite directions (mirror images of each other). Knots p Dec 13, 2023 ยท Intrigued by the reorganisation of half-knots and the importance of rotation for half-knot sequences, we decided to investigate the effect of rotation on the knot and loop security for sliding and blocking half-hitch sequences. Most surgeons tie half-hitch knots, of which some configurations are prone to slippage. The square knot is the basic knot used in surgery. This knot once tied cannot be loosened, and is the most secure knot used in surgery. For a knot of any kind to be performed, placement of two half-hitches is required. Insecure surgical knots can cause surgical complications ranging from wound dehiscence to massive exsanguination and death. We show four techniques for tying the Constrictor in Surgery as well as animations for Surgical Ties and Ligatures – all tied from the surgeon's viewpoint. We aim to characterize the securities of different half-hitch knot configurations. eby ukver uckdp mlkcxd wswtb qogpw kmkuyt nmwm styns yuh