Cross-sectional area of the tendons of the tarsal region in Standardbred trotter horses

• Published in: Equine veterinary journal 2011-03, Vol.43 (2), p.235-239
• Main Authors: Vilar, J.M, Santana, A, Espinosa, J, Spinella, G
• Format: Article
• Language: English
• Subjects: Animals; cross-sectional area; CSA; Female; Hindlimb - anatomy & histology; Hindlimb - diagnostic imaging; horse; horses; Horses - anatomy & histology; Male; normal values; Standardbred; tarsus; tendon; tendons; Tendons - anatomy & histology; Tendons - diagnostic imaging; tibia; Ultrasonography
• ISSN: 0425-1644; 2042-3306
• DOI: 10.1111/j.2042-3306.2010.00141.x

Reasons for performing study: The assessment of a normal range for cross-sectional area (CSA) of tendons in the tarsal region is important in order to use them as reference values in the identification of pathological changes of dimensions. Objectives: To provide normal reference values for the CSA of the tendons of the tarsus of Standardbred trotter horses (STH) by means of ultrasonography. Methods: Transverse echographic images of the tendons were obtained at different levels proximodistally; these images were digitised and CSA values (mean ± s.d.) were obtained for each structure. Results: The largest structure corresponded with the lateral digital flexor/caudal tibial tendon complex at Level 1 and the smallest was the medial digital flexor tendon at Level 4. Almost all tendons showed a slight decreasing in their CSA when crossing the tarsus. Conclusions: The normal CSA values of tendinous structures in the tarsal region of the STH are reported. These data could be used as anatomical references. Potential relevance: The establishment of reference values could serve as a tool to discriminate between normal and abnormal dimensions of tarsal tendons in STH. Other horse breeds should need their own reference values.