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Combined ultrasound/electrostimulation‐guided block of the lumbosacral plexus in a cat undergoing pelvic limb amputation
Author(s) -
Trujanovic Robert,
Otero Pablo E,
Larenza Menzies Maria Paula
Publication year - 2020
Publication title -
veterinary record case reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.165
H-Index - 4
ISSN - 2052-6121
DOI - 10.1136/vetreccr-2019-000977
Subject(s) - medicine , anesthesia , ropivacaine , lumbosacral plexus , lumbosacral joint , surgery , lidocaine
A cat was anaesthetised with midazolam and alfaxalone for a pelvic limb amputation due to a metatarsal fracture complicated with soft tissue necrosis. The femoral nerve and lumbosacral trunk were blocked with ropivacaine 0.75 per cent using a combined ultrasound/nervestimulation‐guided approach. Anaesthesia was maintained with end‐tidal concentrations of isoflurane between 1 per cent and 1.1 per cent. Vital parameters were stable during anaesthesia although moderate hypothermia (33.6°C–35.5°C) was encountered. The lateral cutaneous branch of the femoral nerve was desensitised with lidocaine 2 per cent at the end of the surgical procedures. The cat recovered well from anaesthesia and received meloxicam 0.05 mg/kg daily for postoperative pain treatment. Repeated evaluations using a composite pain scale showed values compatible with low probability of pain during the following 48 hours. Only one dose of methadone (0.2 mg/kg) was given. The combined femoral nerve and lumbosacral trunk block provided optimal intraoperative antinociception and postoperative pain relief.