Success Rate and Perioperative Complications of Lumbosacral Extradural Anaesthesia in Dogs Undergoing Total Hip Replacement: A Double-Centre Retrospective Study

Inga Viilmann; Heide Klöppel; Elliot Wringe; Enzo Vettorato

doi:10.1055/s-0041-1736194

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 2022; 35(02): 081-089
DOI: 10.1055/s-0041-1736194

Original Research

Success Rate and Perioperative Complications of Lumbosacral Extradural Anaesthesia in Dogs Undergoing Total Hip Replacement: A Double-Centre Retrospective Study

Inga Viilmann

¹Dick White Referrals, Six Mile Bottom, Cambridgeshire, United Kingdom

,

Heide Klöppel

²Davies Veterinary Specialists, Higham Gobion, Hertfordshire, United Kingdom

,

Elliot Wringe

²Davies Veterinary Specialists, Higham Gobion, Hertfordshire, United Kingdom

,

Enzo Vettorato

¹Dick White Referrals, Six Mile Bottom, Cambridgeshire, United Kingdom

› Author Affiliations

Abstract

Objective The aim of this study was to retrospectively evaluate the success rate and perioperative complications of lumbosacral extradural anaesthesia in dogs undergoing total hip replacement.

Study Design Records of dogs undergoing total hip replacement in which lumbosacral extradural anaesthesia with 0.5% levo- or bupivacaine combined with either morphine or buprenorphine were retrieved. Success rate was defined as intraoperative fentanyl consumption <1 μg/kg/h with no intravenous infusion of other analgesic drugs and no additional morphine/methadone within the first 3 hours from premedication. Prevalence of intraoperative anaesthetic and postoperative surgical complications was calculated.

Results Overall, 206 dogs were included in the study. Success rate was 88.7%. Hypercapnia (75.2%), hypotension (46.1%), hypothermia (27.7%) and regurgitation (6.3%) were recorded during anaesthesia. Within 24 hours post-surgery, urinary retention (17.8%), vomiting/regurgitation/diarrhea (8.2%) and sciatic neurapraxia of the operated limb (5.8%) were recorded. Luxation of the operated hip occurred at 48 and 72 hours after surgery in two dogs and one dog respectively. One dog had cardiopulmonary arrest at 52 hours after surgery.

Conclusion While hypercapnia, hypotension and hypothermia might develop intraoperatively, the high success rate and the relatively low prevalence of postoperative surgical complications directly associated with lumbosacral extradural anaesthesia justify its use in dogs undergoing total hip replacement.

Keywords

extradural anaesthesia - total hip replacement - dog - complication rate

Full Text

References

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