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Pedicle ligation in ovariohysterectomy: an in vitro study of ligation techniques
Author(s) -
Leitch B. J.,
Bray J. P.,
Kim N. J. G.,
Cann B.,
LopezVilalobos N.
Publication year - 2012
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.2012.01260.x
Subject(s) - ligature , ligation , medicine , knot (papermaking) , surgery , knot tying , composite material , materials science
Objectives Ligature failure is an important complication following ovariohysterectomy in the bitch. The aim of this study was to assess the differences between five individual ligation techniques in their ability to attenuate a bulky vascular model. Methods A vascular model was constructed that enabled the occlusive ability of five different ligation techniques to be measured including the square knot, surgeon's knot, slip knot, modified transfixing ligature and the single‐double other side knot. Each was constructed using both USP ‐0 polyglyconate and polyglactin 910 suture material. The extent of attenuation of the vascular model that was achieved by each technique was assessed using pressure transducers. Results In this model, the slip knot, modified transfixing ligature and the single‐double other side knot outperformed the square and surgeon's knots. Clinical Significance The results of this study suggest that utilising a knot design that has more inherent resistance to slippage of the first throw (e.g. the modified transfixing ligature, slip or single‐double other side knots) may be preferable over square and surgeon's knots when tying a ligature on a bulky vascular pedicle like the ovarian stump in a large bitch.