Ex vivo and in vivo evaluation of a modified interrupted Lembert pattern for small intestinal anastomoses in horses.
Authors: Seitz-Cherner Emma, Bauck Anje G, Denagamage Thomas, Freeman David E
Journal: Veterinary surgery : VS
Summary
# Editorial Summary: Modified Interrupted Lembert Anastomosis in Equine Small Intestine Jejunojejunal anastomoses represent a critical surgical technique in equine colic cases, yet optimal suture patterns remain contested between single and double-layer approaches. Freeman's group compared three methods—modified continuous Lembert, modified interrupted Lembert (mod-IL), and traditional two-layer simple continuous—using both cadaveric tissue and live surgical models to evaluate bursting pressure, leakage rates, and practical surgical factors including completion time and stoma diameter. The modified interrupted Lembert pattern proved comparable to conventional two-layer techniques in ex vivo bursting strength whilst offering practical advantages: cadaveric mod-IL anastomoses required approximately 15–20 minutes less operative time than two-layer closures, with in vivo stoma measurements remaining consistent with pre-operative predictions. These findings suggest that the mod-IL technique provides a viable single-layer alternative that maintains tissue integrity without extending surgical duration—a meaningful consideration given that prolonged anaesthesia time directly impacts recovery outcomes in equine colic patients. Practitioners should view this method as a legitimate option for routine small intestinal anastomosis, particularly when operative time reduction may benefit overall patient prognosis.
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Practical Takeaways
- •The modified interrupted Lembert pattern offers a single-layer anastomosis option that may reduce surgical time compared to two-layer techniques while maintaining adequate stoma dimensions
- •Ex vivo cadaver practice provides useful training data but may not fully replicate in vivo surgical conditions, so timing and handling characteristics should be validated in live cases
- •Surgeons performing equine jejunojejunal anastomoses should consider the modified interrupted Lembert as a viable single-layer alternative to traditional two-layer methods
Key Findings
- •Modified interrupted Lembert pattern was compared against modified continuous Lembert and 2-layer simple continuous anastomosis techniques for equine small intestinal surgery
- •Study evaluated both ex vivo (cadaver) and in vivo performance of the modified interrupted Lembert anastomosis pattern
- •Comparison included metrics of surgical time to completion and stoma (anastomotic site) size between ex vivo and in vivo conditions