Paravertebral blockade of the brachial plexus in dogs.

Local anesthetic techniques have the unique ability to block peripheral nociceptive input associated with surgical trauma and inflammation and to prevent sensitization of central nociceptive pathways and the development of pathologic pain. Complete neural blockade of the canine brachial plexus is difficult to achieve using the traditional axillary technique. This article describes paravertebral blockade of the brachial plexus in dogs and a new modified paravertebral technique. Both techniques are relatively easy to perform and produce complete blockade of the forelimb, including the shoulder. A review of relevant clinical anatomy and guidelines for using electrical nerve locators are also included.