An in vitro comparison of two suture intervals using braided absorbable loop suture in the equine linea alba.

The study explores the comparison between two different suture intervals using braided absorbable loop suture in closing abdominal incisions in horse cadavers. While both patterns tested did not show noteworthy differences in effectiveness, the 1.5 cm by 1.5 cm suture pattern may have potential advantages, including shorter closure time, less residual suture in the wound, and higher strength.

Research Methodology

• The research was conducted using 14 horse cadavers, each weighing more than 318 kilograms.
• Abdominal incisions measuring 25 centimeters in length were made on each subject, with two different suture-bite intervals being tested: 1.0 cm x 1.5 cm and 1.5 cm x 1.5 cm.
• A 200L polyurethane bladder was placed within the abdomen and inflated to simulate abdominal wall tension.
• The teams used a #2 braided lactomer loop suture in a continuous pattern for closing the abdominal incisions.
• Researchers evaluated differences in deviation from the surgery line, length of time taken for closure, total suture length used, the ratio of suture length to wound length, the pressure at which the sutures would burst, and the modes of failure – whether suture failure or fascial failure.

Findings of the Research

• The researchers found no significant differences in closing time, total suture length used, the ratio of suture length to wound length, bursting pressure, or the mode of failure between the two suture-bite intervals.
• The main mode of failure for both methods was fascial failure. However, failure of the suture itself was infrequent, and no instances of knot failure were observed.

Conclusion of the Study

• The study concluded that a #2 braided lactomer loop suture placed in a continuous pattern should provide enough security for the closure of equine linea alba – the connective tissue in horses’ abdomens that runs from the chest to the pelvis – during recovery and immediately after operation.
• Even though there were no substantial differences detected between the two suture patterns tested, the 1.5 cm x 1.5 cm pattern may possess potential benefits like reduced closure time, diminished total suture left in the wound, and increased strength.