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Mammals (other)
Caudal inferior alveolar nerve block in a Bennett’s wallaby (Macropus rufogriseus)
  1. Nicola Tian Zhi Ho,
  2. Rhiannon Emma Morgan,
  3. David M Bolt,
  4. Alexander Eric Hawkins and
  5. Kata Orsolya Veres-Nyéki
  1. Department of Clinical Science and Services, The Royal Veterinary College, Hatfield, UK
  1. Correspondence to Dr Nicola Tian Zhi Ho; nho2{at}


A Bennett’s wallaby (Macropus rufogriseus) was referred for diagnostic imaging and further investigation into suspected progressive pyogranulomatous osteomyelitis of the mandible. This diagnosis was confirmed via CT and CT-guided fine-needle biopsies of the right mandible, and surgery was performed to remove the affected teeth and treat the associated bone.

The right inferior alveolar nerve was targeted using a lateral approach with the needle directed medially in a rostro-ventral direction into the masseteric foramen using bupivacaine hydrochloride 0.6 mg/kg.

To the authors’ knowledge, the inferior alveolar nerve block has never been reported in this species, and the lateral approach via the masseteric foramen is novel, considering that the nerve is usually targeted at the medial aspect of the mandible.

Surgical treatment of pyogranulomatous osteomyelitis is likely to be associated with significant pain, and the use of a locoregional technique to provide regional anaesthesia would complement the provision of balanced, multimodal anaesthesia.

  • zoo animals
  • anaesthesia
  • maxillo-facial surgery
  • pain
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  • Contributors NTZH and KOV-N: anaesthesia, concept, writing and reviewing. REM: diagnostic imaging and reviewing; DMB and AEH: surgery and reviewing.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement There are no data in this work.

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