Ex vivo comparison of the bursting strength of an equine ventral midline celiotomy covered by two standard abdominal bandages.
Abstract: To determine the compressive effect of abdominal bandages after ventral midline celiotomy closure in horses. Methods: Ex vivo, experimental study. Methods: Equine cadavers (n = 18), six per group. Methods: A 20-cm ventral midline celiotomy was created in each of 18 equine cadavers. A 200-L inflatable bladder was placed in the abdomen, and the linea alba was apposed. Horses were randomly assigned to no bandage (C), elastic (E), or Velcro inelastic (I) bandage groups for testing. Circumferential bandages were placed with a subbandage pressure monitoring system over the incision. The bladder was insufflated until construct failure, which was determined by a decrease in pressure reading. Bursting pressure, location of body wall or bandage failure, and subbandage pressures were recorded. Results: Maximum bursting pressure was different between groups E and C (P = .004), with no difference between groups E and I (P = .146) or I and C (P = .085). Group I achieved higher subbandage pressure compared with group E (P = .036). Abdominal compliance was not different between groups (P = .099). Location of failure differed between groups (P = .011), with failure at the diaphragm more common in group I (6/6, 100%) compared with groups E (3/6 [50%]) and C (1/6 [16.7%]). Conclusions: Elastic abdominal bandages had higher abdominal bursting pressures compared with unbandaged incisions.
© 2021 The American College of Veterinary Surgeons.
Publication Date: 2021-02-02 PubMed ID: 33528048DOI: 10.1111/vsu.13572Google Scholar: Lookup
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- Comparative Study
- Journal Article
Summary
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This scientific research investigates the compressive effect of abdominal bandages on the closure of midline abdominal incisions in horses, and reveals that elastic abdominal bandages seem more effective at raising bursting pressures than without any bandages.
General Overview
- The researchers initiated a controlled, experimental study ex vivo on 18 equine cadavers. The bodies were divided into three groups: a group with no bandage (referred to as C), a group with elastic bandages (E), and another with Velcro inelastic bandages (I).
- A 20-cm incision was made along the ventral midline of each cadaver (celiotomy).
- They positioned a 200-L inflatable bladder inside the abdomen of each horse and then stitched together the linea alba, the white line down the middle of the abdominal muscles.
- The bandages were then placed over the incision, with group C being the control group without a bandage. The bandages were arranged with a system to monitor pressure under the bandage.
Testing Procedure and Results
- The inflatable bladder inside each horse was filled (insufflated) until a decrease in bladder pressure indicated the structural breakdown of the incision (referred to as “construct failure”).
- They recorded the maximum pressure sustained before failure (bursting pressure), the point of failure on the body wall or bandage, and subbandage pressures.
- The maximal bursting pressure varied significantly (P = .004) between groups E and C, showcasing elastic bandages’ superior ability to withstand pressure compared to no bandage at all.
- There was no significant difference in bursting pressure between elastic bands and Velcro inelastic bands (P = .146) or inelastic bands and no bandage (P = .085).
- Group I bandages exhibited a higher subbandage pressure than group E (P = .036).
- There were no significant differences in abdominal compliance (the ability to stretch) between the groups (P = .099).
- The point of failure varied significantly between groups (P = .011), with a failure at the diaphragm more frequent in the inelastic bandage group (100% of times) compared to the elastic bands (50%) and the control group (16.7%).
Conclusion
- The project concluded that elastic abdominal bandages used following a ventral midline celiotomy in horses enhance bursting pressures compared to leaving the incision without a bandage. This suggests that elastic abdominal bandages might provide superior support for incisions after abdominal surgery in horses.
Cite This Article
APA
Weatherall KM, Boone LH, Munsterman A, Hanson RR.
(2021).
Ex vivo comparison of the bursting strength of an equine ventral midline celiotomy covered by two standard abdominal bandages.
Vet Surg, 50(3), 615-621.
https://doi.org/10.1111/vsu.13572 Publication
Researcher Affiliations
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA.
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA.
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA.
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, Alabama, USA.
MeSH Terms
- Abdomen / surgery
- Animals
- Cadaver
- Compression Bandages / statistics & numerical data
- Compression Bandages / veterinary
- Female
- Horses / surgery
- Laparotomy / instrumentation
- Laparotomy / veterinary
- Male
- Pressure
- Reference Standards
Grant Funding
- 2019 Surgeon-in-Training / American College of Veterinary Surgeons Foundation
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