Ultrasound

Authors: Laurence Evrard, Géraldine Bolen, Nathalie Maquet, Valeria Busoni
Journal: Journal of Equine Veterinary Science

This study describes ultrasound (US) technique and reference images of the equine distal interphalangeal joint collateral ligaments (CLs), and evaluates the portion of the CLs assessable by US in a series of normal forelimbs. Transverse and longitudinal US images were obtained on five healthy horses and on 25 equine cadaver forelimbs. On six limbs, a needle was placed under US-guidance at the distal limit of visualization of each CL, and the portion of CL visible at US was evaluated on computed tomographic (CT) images.

Authors: K. Vanderperren, I. Gielen, A. Van Caelenberg, E. Van der Vekens, E.V. Raes, S. Hauspie, H. van Bree, J.H. Saunders
Journal: Veterinary Journal

This article describes the ultrasonographic (US) appearance of bony abnormalities on the dorsal aspect of the third metacarpal/metatarsal bone of the equine fetlock in cadavers with radiographic signs of osteoarthrosis. After US, computed tomography was undertaken to better characterise the lesions. Twelve fetlock joints were collected and all had more than one bone abnormality on US. Normal subchondral bone appeared on US as a well-defined and regular hyperechoic line with distal acoustic shadowing.

Category: Equine - Ultrasound
Authors: Michael Schramme, Anne Josson, Keith Linder
Journal: Veterinary Radiology and Ultrasound

The suspensory ligament is difficult to image accurately, partly because it contains ligamentous fibers, as well as noncollagenous adipose and muscle tissue in the normal horse. Our hypothesis was that magnetic resonance (MR) imaging would be more accurate than ultrasonography in identifying the size of the suspensory ligament and the presence and size of noncollagenous tissues within the ligament. Eleven horses were used for ultrasonographic and MR imaging and histologic evaluation of the rear suspensory ligament.

Authors: S.Dyson
Journal: Equine Veterinary Education

There have been no detailed ultrasonographic descriptions of injuries of the accessory ligament of the deep digital flexor tendon (ALDDFT) in the carpal and proximal metacarpal and tarsal and proximal metatarsal regions. The aims of this study were to describe the: 1) normal ultrasonographic appearance of the proximal aspect of the ALDDFT in fore- and hindlimbs and 2) clinical and ultrasonographic features of proximal injuries of the ALDDFT in both fore- and hindlimbs.

Authors: S. Jacquet, J.-M. Denoix
Journal: Equine Veterinary Education

In the diagnostic work-up of lameness originating from the foot, ultrasonographic examination is an essential complement to radiography for the detection of soft tissue lesions of the podotrochlear apparatus (PTA). The infrasesamoidean part of the deep digital flexor tendon, distal sesamoidean ligament and distal sesamoid bone can be accurately assessed using a transcuneal approach. This paper describes the ultrasonographic technique and presents normal and abnormal ultrasound images of the infrasesamoidean part of the PTA.

Category: Equine - Ultrasound
Authors: U. Rottensteiner, F. Palm, J. Kofler
Journal: The Veterinary Journal

The purpose of this study was to map the coxofemoral region in foals to obtain ultrasonographic reference values for the interpretation of potentially pathological findings in hip joints. Using a 7.5 MHz linear transducer, 38 examinations were carried out: 10 (20 joints) on cadavers and 28 (55 joints) on live healthy foals up to 8 weeks of age. The chosen plane of examination was caudolateral–craniomedial oblique on an imaginary line connecting the greater trochanter and the cranial edge of the tuber sacrale.

Category: Equine - Ultrasound
Authors: M. F. BARRETT, D. D. FRISBIE, C. W. McILWRAITH, N. M. WERPY
Journal: Equine Veterinary Journal

Reasons for performing study: While descriptions of the visible soft tissues of the femorotibial joints exist for both arthroscopy and ultrasonography, there are few examples in the literature that discuss in detail the combined findings of these modalities.

Objectives: To further elucidate the ultrasonographic and arthroscopic boundaries of the normal equine femorotibial joints and improve the understanding of the benefits and limitations of each individual modality.

Authors: A.-G. Dupays, V. Coudry, J.-M. Denoix
Journal: Equine Veterinary Education

Ultrasonographic examination of the dorsal aspect of the distal interphalangeal joint is part of the routine examination of the foot structures. The purpose of this paper is to describe the ultrasonographic anatomy of the area, and normal transverse and longitudinal images. Clinical cases are presented to illustrate abnormal findings and lesions of the dorsal aspect of the joint.

Category: Equine - Imaging - Ultrasound
Authors: M. Seignour, V. Coudry, R. Norris, J-M. Denoix
Journal: Equine Veterinary Education

The purpose of this paper is to present a comprehensive ultrasonographic technique to image the palmar/plantar aspect of the fetlock in the horse, from the manica flexoria (MF) down to the base of the proximal sesamoid bones (PSBs) and to describe the normal images. Ultrasonography, in combination with radiography, is the technique of choice to identify and document tendon and ligament injuries in routine practice and has been shown adequate for evaluating the palmar/plantar aspect of the fetlock.

Category: Equine - Imaging - Ultrasound
Authors: J.-M. Denoix, A.-G. Dupays, L. Bertoni, N. Werpy, F. Audigié
Journal: Equine Veterinary Education

Ultrasonography is an easy and rewarding technique for the assessment of collateral ligaments of the distal interphalangeal joint (CL-DIPJ) desmopathies and enthesopathies. Comparison between ligaments of both feet and oblique incidence improve sensitivity and specificity of the ultrasonographic diagnosis. The main limitation of the procedure is imaging the distal part of the CL-DIPJ and corresponding fossa of the distal phalanx.

Category: Equine - Ligament - Ultrasound