SAEVA Proceedings 2018 4. Proceedings | Page 46

SAEVA Congress 2018 Proceedings | 12-15 February 2018 | ATKV Goudini Spa Osteoarthropathy of the cervical facet joints C5-6 The articular facet injection can be performed successfully with the transducer held perpendicular to (dorsal approach), at a 45 o angle to (craniodorsal approach) or parallel to (cranial approach) the long axis of the neck. Identification of the “chair” sign detected with the transducer held parallel to the long axis of the neck facilitates the ultrasound-guided placement of the needle into the cervical facet joint and successfully obtaining joint fluid prior to injection. Temporomandibular osteoarthropathy Osteoarthropathy of the temporomandibular joint can be associated with poor performance with affected horses reluctant to turn their head or resistant to going “on the bit.” Irregular bone along the articular margins has been imaged sonographically in horses with degenerative joint disease of the temporomandibular joint, as has narrowing of the joint space, thickeni ng of the fibrous joint capsule and disintegration of the disc material with replacement of the disc by a fibrous mass of tissue. Ultrasonography both localized the lesion and enabled the lesion to be accurately characterized in one horse with degenerative joint disease and was superior to scintigraphy. Severe Osteoarthritis TMJ Selected References 1. Abuja GA, Garcia-Lopez JM, Manso-Diaz G, et al. The cranial nuchal bursa: Anatomy, ultrasonography, magnetic resonance imaging and endoscopic approach. Equine Vet J 2014; doi:10.1111/evj.12226. 2. 41 Berg LC, Nielsen JV, Thoefner MB, Thomsen RD. Ultrasonography of the equine cervical region: a descriptive study in eight horses. Equine Vet J 2003;35:647-655.