OBJECTIVE: To determine arthroscopic approaches to the dorsal synovial compartments of the antebrachiocarpal and middle carpal joints in adult cattle, and to describe the arthroscopic intra-articular anatomy from each approach.

STUDY DESIGN: Ex vivo study.

ANIMALS: Six fresh adult bovine cadavers.

Category: Imaging - Ruminant

OBJECTIVE: To describe the diagnosis and surgical management of congenital laxity of the fibularis tendon resulting in hyperextension of the tarsus in calves.

STUDY DESIGN: Case series.

ANIMALS: Fourteen calves (3 unilateral, 11 bilateral) diagnosed with congenital tarsal instability caused by laxity of the fibularis musculotendinous unit resulting in hyperextension of the tarsus.

Authors: S. E. van Hamel, H. J. Bergman, S. M. Puchalski, M. W. de Groot and P. R. van Weeren
Journal: Equine Veterinary Journal

Reasons for performing the study

Distal deep digital flexor tendinopathy is an important cause of foot lameness in horses that is difficult to diagnose with radiography and ultrasonography. Magnetic resonance imaging is a well-accepted and validated technique for the identification of deep digital flexor tendon (DDFT) lesions, but has some practical and financial drawbacks. Contrast-enhanced computed tomography (CECT) has been proposed as a suitable alternative, but validation studies are currently lacking.

Authors: Erin G. Porter, Natasha M. Werpy
Journal: Veterinary Clinics of North America: Equine Practice

This article addresses the clinical application of magnetic resonance imaging (MRI) and computed tomography (CT) as applied to the standing equine patient. This discussion includes the logistics, advantages, disadvantages, and limitations of imaging a standing horse. In addition, a brief review is given of the physics of these modalities as applied in clinical practice, and the currently available hardware and software required by these techniques for image acquisition and artifact reduction.

Category: CT - Equine - Imaging - MRI
Authors: Megan M. Lamb, Jennifer G. Barrett, Nathaniel A. White II and Stephen R. Werre
Journal: Veterinary Radiology and Ultrasound

Desmopathy of the distal interphalangeal joint collateral ligament is a common cause of lameness in the horse and carries a variable prognosis for soundness. Intralesional treatment has been proposed for improving outcome; however, limited reports describe methods for injecting this ligament. The purpose of this study was to compare accuracy of low-field magnetic resonance imaging (MRI) vs. radiography for injecting the collateral ligament of the distal interphalangeal joint.

Authors: Teresa L. Douthit, Jennifer M. Bormann, Nora M. Bello
Journal: Journal of Equine Veterinary Science

The objectives of this study were to assess the correlation between hoof surface temperature and ultrasonographic measurements of digital blood vessels in horses and to evaluate the measurements' potential as predictors for clinical lameness. Twelve 3-year-old American Quarter Horses, 6 geldings and 6 mares, with average initial body weight of 459 ± 31 kg were used. On days 0, 30, 60, and 90 of the study, horses were weighed and subjected to clinical lameness examinations.

Category: Equine - Imaging - Lameness - Podiatry
Authors: E. Raes, H. J. Bergman, B. Van Ryssen, K. Vanderperren, E. Stock and J. H. Saunders
Journal: Equine Veterinary Journal

Reasons for performing study

Tarsal pain is a common cause of hindlimb lameness in horses. Diagnosis can usually be made with radiography and ultrasonography; however, in some cases, these techniques are inconclusive and additional imaging is necessary. No studies describing computed tomography (CT) features of different tarsal lesions in horses with tarsal lameness are reported.

Category: CT - Equine - Imaging - Lameness
Authors: B. Toholj, M. Cincović, M. Stevančević, J. Spasojevic, V. Ivetić, A. Potkonjak
Journal: The Veterinary Journal

The aim of this research was to investigate the correlation between the thickness of solar soft tissue (SST; i.e. the corium and subcutaneous tissue) in early lactation and sole ulcer formation in late lactation. Fifty Holstein–Friesian cows were examined three times: (1) 30 days after calving (locomotion scoring, trimming, claw examination, measurement of SST); (2) 70 days after calving (locomotion scoring); and (3) 180 days after calving (locomotion scoring, trimming, claw examination).

Category: Imaging - Podiatry - Ruminant
Authors: Fanny Hontoir, Jean-François Nisolle, Hubert Meurisse, Vincent Simon, Max Tallier, Renaud Vanderstricht, Nadine Antoine, Joëlle Piret, Peter Clegg, Jean-Michel Vandeweerd
Journal: The Veterinary Journal

Articular cartilage defects are prevalent in metacarpo/metatarsophalangeal (MCP/MTP) joints of horses. The aim of this study was to determine and compare the sensitivity and specificity of 3-Tesla magnetic resonance imaging (3-T MRI) and computed tomography arthrography (CTA) to identify structural cartilage defects in the equine MCP/MTP joint.

Authors: David D. Frisbie, Myra F. Barrett, C. Wayne McIlwraith and Jeff Ullmer
Journal: Veterinary Surgery


To assess use of an 18 g arthroscope for diagnostic stifle joint examination in the standing horse.
Study Design

Phase 1 used cadaver limbs and simultaneous ultrasonographic assessment. Phase 2 used 6 normal horses where stifles were assessed in both a standing and flexed position. Phase 3 used horses with suspected stifle injury or disease.

Normal horses (n = 6) to assess ability to perform diagnostic procedure (phase 2) and 3 clinical cases (phase 3).