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EQUINE VETERINARY EDUCATION / AE / OCTOBER 2014
a)
c)
b)
Fig 4: Transverse (a and b) images of the distal tarsal and proximal metatarsal regions of Case 1 obtained at 0 and 3 cm distal to the tarsometatarsal joint. Medial is to the left and plantar to the top. Longitudinal images (c) of the distal tarsal and proximal metatarsal regions. Proximal is to the top and dorsal to the left. In (a) there is an anechoic region (arrow) where the accessory ligament of the SL should be. In (b) the dorsal aspect of the suspensory ligament is diffusely hypoechoic. In (c) in the accessory ligament of the suspensory ligament there is loss of the parallel alignment of the linear echoes which are shorter than normal and a generalised reduction in echogenicity (arrows).
perineural analgesia of the deep branch of the lateral plantar nerve. It also enforces the value of careful palpation to identify an unusual location of soft tissue swelling. It demonstrates how assessment of ridden exercise in horses with a history of deterioration in performance may reveal lameness not apparent under other circumstances, especially when performing specific movements such as 10mdiameter circles. It also highlights the benefit of a tibial nerve block in horses in which lameness is improved, but not abolished, by perineural analgesia of the deep branch of the lateral plantar nerve.
Author’s declaration of interests No conflicts of interest have been declared.
Manufacturers’ addresses
1GE, Milwaukee, USA. 2Pall Corporation, Port Washington, USA.
References Claunch, K., Eggleston, R. and Baxter, G. (2013) Anesthetic diffusion following two approaches to block the deep branch of the lateral plantar nerve. Proc. Am. Ass. Equine Practnrs. 59, 84.
Contino, E., King, M., Valdes-Martinez, A. and McIlwraith, C.W. (2013) In vivo diffusion characteristics after perineural injection of the deep branch of the lateral plantar nerve with mepivacaine or iohexol in horses. Proc. Am. Ass. Equine Practnrs. 59, 85.
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