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Use of wound infusion catheters for delivery of local anesthetic following standing partial ostectomy of thoracolumbar vertebral spinous processes in horses is not associated with increased surgical site infections.
Abstract: Wound infusion catheters (WICs) have been used in humans and some veterinary species for post-operative local anesthetic administration following a variety of surgical procedures, aiming to reduce post-operative analgesia requirements and improve patient comfort. Benefit in reduction in pain, post-operative analgesia requirements and length of hospital stay are well documented in humans, but use of WICs may not have been widely adopted in veterinary species due to the concern of increased complications, such as dehiscence or surgical site infection (SSI), creating a barrier to their use. This study aimed to evaluate the use of WICs in horses undergoing standing partial ostectomy surgeries, document complications and investigate if the incidence of SSI was equivalent between those horses that did and did not have a WIC. Unassigned: Clinical records were searched between January 2010-December 2023 for horses undergoing standing partial ostectomy surgery of thoracolumbar vertebral spinous processes at one institution. Population variables (age, breed, bodyweight), placement of a WIC or not, post-operative complications, analgesia protocols and surgical time were recorded. Horses received up to 0.1 mg kg-1 bupivacaine (0.5 mg mL-1) every 6-8 h via the WIC where one was placed. To compare SSI complication incidence between using or not using a WIC, a proportional independent equivalence test was used. Unassigned: There were 64 horses included in the final analysis with a WIC placed in 29/64 horses (45.3%) and 35/64 (54.7%) having no WIC placed at surgery. Incidence of short-term SSI was 11.4% (no WIC used) and 13.8% (WIC used), respectively. The difference in proportion of SSI between the presence or absence of a WIC was not significant [-0.024 (90% CI -0.181; 0.133); p = 0.94]. Unassigned: The incidence of SSIs was equivalent between groups whether a WIC was used or not. WICs should be considered as part of a multi-modal analgesic approach in the post-operative period. Further research into local anesthetic dosing and its impact on rescue analgesia requirements and pain-scores is warranted.
Copyright © 2024 Wickstead, Milner and Bardell.
Publication Date: 2024-07-05 PubMed ID: 39036797PubMed Central: PMC11257855DOI: 10.3389/fvets.2024.1436308Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
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This research investigated the use of wound infusion catheters (WICs) for pain management in horses after undergoing a partial ostectomy surgery. The study found no significant increase in surgical site infections (SSIs) in horses treated with WICs compared to those that were not.
Study Objectives
- The main objective of the study was to examine the use of WICs in horses that underwent standing partial ostectomy (removal of a portion of the bone) surgeries on the thoracolumbar vertebral spinous processes (a specific type of spinal surgery).
- It aimed to document potential complications and explore whether the presence of WICs influenced the incidence of SSIs.
Methodology
- The researchers reviewed clinical records from January 2010 to December 2023 of horses that underwent the specified surgical procedure at one institution.
- Various factors were recorded: age, breed, bodyweight, whether a WIC was placed or not, any post-operative complications, analgesia (pain relief) protocols, and total timing of the surgery.
- Horses with WIC placement received a dose of the local anesthetic, bupivacaine, every 6-8 hours.
- An independent equivalence test was used to compare the incidence of SSIs between horses that received a WIC and those that did not.
Results
- Out of 64 horses included in the final analysis, 29 (45.3%) had a WIC placed during surgery while 35 (54.7%) had no WIC.
- The incidence of short-term SSIs was 11.4% for horses without a WIC and 13.8% for those with a WIC. The study found that the difference in the occurrence of SSIs between the two groups is statistically insignificant.
Conclusion
- The researchers concluded that the use of WIC does not lead to a higher incidence of SSIs. Therefore, WICs can be considered as part of post-operative pain management in horses.
- However, they advocated more research into local anesthetic dosage and its impact on pain relief needs and pain scores.
Cite This Article
APA
Wickstead FA, Milner PI, Bardell DA.
(2024).
Use of wound infusion catheters for delivery of local anesthetic following standing partial ostectomy of thoracolumbar vertebral spinous processes in horses is not associated with increased surgical site infections.
Front Vet Sci, 11, 1436308.
https://doi.org/10.3389/fvets.2024.1436308 Publication
Researcher Affiliations
- Department of Small Animal Clinical Sciences, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom.
- Department of Equine Clinical Sciences, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom.
- Department of Equine Clinical Sciences, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom.
Conflict of Interest Statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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