![]() Knot ears should be cut at least 3 mm for synthetic sutures. In addition, generally speaking, multifilament suture materials tend to lockup prematurely during tying (the first throw of the knot may not tighten fully around the vessel or pedicle) since the suture develops more friction between strands compared to the monofilaments. ![]() Multifilament sutures such as silk, a suture noted for its excellent handling and ligation qualities, can be used successfully for ligation but these sutures have been shown to increase the risk of suture-related wound infections. For larger arteries, some surgeons still recommend monofilament nonabsorbable suture material, such as polypropylene. Suggested Suture Material Choice and Size for LigationĪlthough a number of sutures can be used successfully to ligate a pedicle or critical blood vessel, most surgeons choose strong absorbable monofilament material (such as polydioxanone-PDS, polyglyconate-Maxon, glycomer 631-Biosyn, poliglecaprone 25-Monocryl) of 0 to 3-0 size for most small animal applications. Ligation of solitary vessels, or multiple vessels within a pedicle (mass ligation) is used virtually every day in practice during ovariohysterectomy, castration, amputation, splenectomy, and lobectomies therefore, creating secure ligations is one of the most critical life-saving steps in most soft tissue surgeries. Despite the introduction of newer electrosealing devices for use in open and minimally invasive surgery now available to veterinarians for large vessel hemostasis, ligatures are still considered the gold standard method to achieve hemostasis. ![]() Ligation involves the use of encircling suture material and a knot, called a ligature, to tightly occlude blood vessels in surgery.
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