Cadaveric study of the ultrasound-guided inter-transversospinalis plane block in dogs for the cervical epaxial musculature region

• Published in: Research in veterinary science 2024-11, Vol.180, p.105427, Article 105427
• Main Authors: Herrera-Linares, Manuel Enrique, Fernández-Parra, Rocío, Zamora-Perarnau, Carla, Fernández-Salesa, Nuria, Yaffy, Dylan, Sanchis-Mora, Sandra
• Format: Article
• Language: English
• Subjects: Analgesia; Anatomy; Animals; Cadaver; Canine; Cervical Vertebrae - anatomy & histology; Cervical Vertebrae - diagnostic imaging; Cervical Vertebrae - innervation; Dogs - anatomy & histology; Female; Interfascial plane; Neck; Nerve Block - methods; Nerve Block - veterinary; Regional anesthesia; Spinal Nerves - anatomy & histology; Spinal Nerves - diagnostic imaging; Ultrasonography - veterinary; Ultrasonography, Interventional - methods; Ultrasonography, Interventional - veterinary
• ISSN: 0034-5288; 1532-2661; 1532-2661
• DOI: 10.1016/j.rvsc.2024.105427

Blockage of the dorsal rami of the spinal nerves (DRSN) provides analgesia to the epaxial musculature area in dogs. However, techniques to block the DRSN at the cervical level in dogs haven't yet been investigated. This study aimed to study the anatomy of the cervical area, and to describe a new ultrasound (US)-guided inter-transversospinalis plane (ITP) block technique at the 5th cervical vertebrae (C5). Fourteen adult canine's cadavers were used in this blinded, cadaveric, experimental study. One cadaver for cryo-section, one for anatomical research and twelve to do an ITP injection using 0.3 mL/kg (HV) or 0.15 mL/kg (LV) of dye/contrast solution in each lateral at C5, followed by a computed tomography and anatomical dissection. The HV and LV groups stained a median (range) of 4.67 (3-6) and 3.67 (2-5) DRSN into the ITP, respectively (P