Radiography

Authors: Pablo Espinosa, DVM; Mathieu Lacourt, DVM; Kate Alexander, DMV, MS, DACVR; Florent David, DVM, MSC, DACVS; Sheila Laverty, MVB, DACVS
Journal: Journal of the American Veterinary Medical Association

Objective—To identify the prevalence of fragmentation of the proximal tubercle of the talus (FPTT) in a hospital population of horses, characterize the anatomic features of the affected area and fragments, and describe clinical findings, diagnosis, treatment, and outcome for horses with FPTT.

Design—Retrospective case series.

Animals—9 horses with FPTT.

Authors: Dennis M. Meagher, DVM, PhD, DACVS; Julia L. Bromberek, MSPH; Daniel T. Meagher, DVM, MS, DACVS; Ian A. Gardner, BVSC, MPVM, PhD; Sarah M. Puchalski, DVM, DACVR; Susan M. Stover, DVM, PhD, DACVS
Journal: Journal of the American Veterinary Medical Association

Objective—To estimate the prevalence of radiographic abnormalities (lesions) in Thoroughbred racehorses at 2-year-old in-training sales and determine whether these lesions and 1-furlong presale workout times were associated with subsequent racing performance.

Design—Retrospective cohort study.

Animals—953 Thoroughbreds.

Authors: A. R. FISKE-JACKSON, W. H. J. BARKER, E. ELIASHAR, K. FOY and R. K. W. SMITH
Journal: Equine Veterinary Journal

Reasons for performing study: The sensitivity of ultrasonography for the diagnosis of manica flexoria (MF) tears within the digital flexor tendon sheath (DFTS) is lower than for diagnosis of marginal tears of the deep digital flexor tendon (DDFT). Additional diagnostic tools would assist in appropriate decision making for either conservative or surgical management.

Objectives: To evaluate the improvement in lameness of horses with MF or DDFT tears following intrathecal analgesia and to assess the sensitivity and specificity of contrast radiography for the diagnosis of these tears.

Authors: S. Claerhoudt, H. J. Bergman , H. van der Veen, L. Duchateau, E. V. Raes , K. Vanderperren, J. H. Saunders
Journal: Veterinary and Comparative Orthopaedics and Traumatology

Objectives: To compare the difference and agreement of the morphology of distal border synovial invaginations on a dorsoproximal-palmarodistal oblique (DPr-PaDiO) projection with hoof-specific angle versus computed tomography. Methods: Computed tomography (CT) images and a DPr-PaDiO radiographic projection with hoof-specific angle were obtained on 50 cadaveric forefeet from 25 Warmblood horses. Computed tomography was assumed to be the gold standard.

Authors: S. Claerhoudt, H. J. Bergman, H. Van Der Veen, L. Duchateau, E. V. Raes and J. H. SAUNDERS
Journal: Equine Veterinary Journal

Summary

Reasons for performing study: Distal border synovial invaginations of the distal sesamoid bone are radiographically assessed during the selection process of horses admitted as breeding stallions or in purchase examinations. Nowadays, many moderately or some deeply penetrating proximally enlarged synovial invaginations are considered as moderate or severe radiographic findings.

Authors: A. Nagy, G. Bodó and S. J. Dyson
Journal: Equine Veterinary Journal

Summary

Reasons for performing study: There is limited information on potential diffusion of local anaesthetic solution after various diagnostic analgesic techniques of the proximal metacarpal region.

Objective: To document potential distribution of local anaesthetic solution following 4 techniques used for diagnostic analgesia of the proximal metacarpal region.

Authors: A. C. Young, A. N. Dimock, S. M. Puchalski, B. Murphy and M. Spriet
Journal: Equine Veterinary Journal

Summary

Reasons for performing study

Osseous resorption of the flexor surface of the distal phalanx of the horse has been identified previously using magnetic resonance (MR) imaging; however, little is known about the prevalence and characteristics of this lesion.

Objectives

To establish the MR prevalence of resorptive lesions in the flexor surface of the distal phalanx and identify concurrent lesions associated with this finding and associations between the MR and radiographic findings.

Methods

Authors: Susan Eastman, Ric F. Redden, Carey A. Williams
Journal: Journal of Equine Veterinary Science

Venography is a very valuable tool that can be used in the diagnosis and treatment of laminitis. It can be used to assess vascular damage in the hoof before changes in radiographic detail occur. When used at onset, the venogram proves to be most valuable. They can not only give baseline measurements but can also show the level of damage that has already occurred. Initial venograms allow farriers and veterinarians to evaluate what degree of corrective treatment is necessary for the best outcome. In addition, a series of venograms can show the process of pathology as well as recovery.

Authors: Simon N. Collins, PhD; Sue J. Dyson, PhD; Rachel C. Murray, PhD; J. Richard Newton, PhD; Faith Burden, PhD; Andrew F. Trawford​‌
Journal: American Journal of Veterinary Research

Objective—To establish and validate an objective method of radiographic diagnosis of anatomic changes in laminitic forefeet of donkeys on the basis of data from a comprehensive series of radiographic measurements.

Animals—85 donkeys with and 85 without forelimb laminitis for baseline data determination; a cohort of 44 donkeys with and 18 without forelimb laminitis was used for validation analyses.

Authors: Beatrice Wenzinger, Regine Hagen, Tanja Schmid, Karl Nuss
Journal: Veterinary Radiology and Ultrasound

The objective of this study was to establish a technique for radiographic examination of the coxofemoral joint and adjacent bony structures in standing cattle. Left (or right) 30° dorsal–right (or left) ventral radiographic views of the coxofemoral joint region of standing cattle (n = 10) with hind limb lameness were evaluated retrospectively. In addition, an experimental study of oblique laterolateral views of the coxofemoral joint region of a bovine skeleton at angles of 15–45° was carried out to determine the optimal position for visualization of the hip region.

Category: Radiography - Ruminant