Ultrasound-Guided Injections in Bursae and Nerve Blocks

Ultrasound-guided injections of bursae and nerves are commonly performed in equine practice. Bursae injections are used for diagnostic and therapeutic purposes, dramatically increasing the accuracy of the injections when compared to blind techniques. In the case of nerves, the perineural injections of anesthetic solutions are particularly useful to block large nerves like tibial and median nerves. This US-guided blocks significantly improve the repeatability of the response and decrease their onset time. This chapter reviews the most common applications and the reported techniques in this field, always striving to help the clinician to select the most adequate technique based on the best evidence available. Injections to the navicular bursa, bicipital bursa, infraspinatus bursa, tibial nerve block, and median nerve block will be discussed in depth.