Radiography

Authors: Withers, J.M.; Voûte, L.C.; Hammond, G.; Lischer, C.J.
Journal: Equine Veterinary Journal

Reasons for performing study: Plain radiography is the standard imaging technique for investigation of diseases associated with the articular process joints (APJ) of the caudal neck; however, the radiographic anatomy of these structures on both lateral and oblique radiographic projections has not previously been described in detail.

Authors: ALEXANDER J. SMITH , CHRISTOPHER W. FELSTEAD , JACK S. LAWSON , RENATE WELLER
Journal: Veterinary Radiology & Ultrasound

Radiography is the most commonly applied imaging modality in equine practice and forms an essential part of the diagnostic work-up of lame horses. Radiographic signs of musculoskeletal pathology are frequently localized at sites of soft tissue attachment, which are often not clearly visible on radiographs. Different lesions carry different prognoses and require a variety of treatments, and a good knowledge of the position of the synovial structures in the distal limb of the horse is essential for practitioners in the interpretation of radiographs.

Authors: VALERIE J. MOORMAN , JOHN F. MARSHALL , DUSTIN V. DEVINE , MARK PAYTON , HENRY W. JANN , ROBERT BAHR
Journal: Veterinary Radiology & Ultrasound

Radiographic diagnosis of equine bone disease using digital radiography is prevalent in veterinary practice. However, the diagnostic quality of digital vs. conventional radiography has not been compared systematically. We hypothesized that digital radiography would be superior to film-screen radiography for detection of subtle lesions of the equine third metacarpal bone. Twenty-four third metacarpal bones were collected from horses euthanized for reasons other than orthopedic disease.

Category: Equine - Imaging - Radiography
Authors: Meehan, L.; Dyson, S.; Murray, R.
Journal: Equine Veterinary Journal

Reasons for performing study: Clinical, radiographic and scintigraphic signs associated with spondylosis of the equine thoracolumbar spine have been poorly documented.

Objectives: To establish an objective radiographic and scintigraphic grading system for spondylosis lesions; to estimate the prevalence of spondylosis in a population of horses with back pain; and to compare the results of radiography and scintigraphy

Authors: Katrien Vanderperren, DVM, PhD; Ann M. Martens, DVM, PhD; Jeroen Declercq, DVM; Luc Duchateau, PhD; Jimmy H. Saunders, DVM, PhD
Journal: Journal of the American Veterinary Medical Association

Objective—To compare clinical usefulness of ultrasonography versus radiography for detection of fragmentation of the dorsal aspect of the metacarpophalangeal (MCP) and metatarsophalangeal (MTP) joints in horses.

Design—Cross-sectional study.

Animals—36 horses with fragmentation of the MCP (n = 19) and MTP (29) joints.

Authors: Down, S.S.; Henson, F.M.D.
Journal: Equine Veterinary Journal

Reasons for performing study: Arthropathy of the caudal cervical articular process joints (APJs) in the horse is documented as a cause of ataxia and paresis secondary to spinal cord compression. Enlargement of the caudal APJs is reported to increase with age, but there are no known associations of any other factors. No association of the degree of APJ enlargement with neurological signs seen has been documented. This study investigated the associations of cervical APJ enlargement at the C5-C6 and C6-C7 articulations with case subject details (breed, age, sex, usage) and clinical signs.

Category: Equine - Imaging - Radiography - Spine
Authors: FLORIAN GEBUREK, DrMedVet, ANNA K. RÖTTING, DrMedVet, PhD, Diplomate ACVS & ECVS , and PETER M. STADLER, Prof DrMedVet
Journal: Veterinary Surgery

Objective—To assess agreement between ultrasonography (transcutaneous and transrectal) and standing radiography in horses with fractures in the pelvic region and disorders of the coxofemoral joint.

Study Design—Case series.

Animals—Warmblood horses (n=23) and 2 ponies.

Methods—Medical records (1999–2008) of equids with pelvic or coxofemoral disorders that had pelvic radiography and ultrasonography were retrieved and results of both techniques compared.

Authors: C. Byron; A. Stewart; B. Benson; B. Tennent-Brown; J. Foreman
Journal: Veterinary and Comparative Orthopaedics and Traumatology

Objective: To investigate the effects of radial extracorporeal shock wave therapy (RESWT) on radiographic and scintigraphic variables in horses with clinical pain referable to the palmar heel. Methods: Eight clientowner horses with palmar heel pain were treated with RESWT for a total of three treatments. Nuclear scintigraphy and radiography were repeated at the beginning and completion of the study. Scintigram region of interest (ROI) density ratios were calculated and compared between treated limbs, untreated limbs, and a population of comparison limbs from eight horses free of lameness.

Authors: DANIELA GORGAS , PATRIC LUDER , JOHANN LANG , MARCUS G. DOHERR , GOTTLIEB UELTSCHI , PATRICK KIRCHER
Journal: Veterinary Radiology & Ultrasound

Nuclear bone scintigraphy is commonly used in the diagnosis of sacroiliac disease in horses. The aim of the present retrospective study was to determine if there was an association between radiopharmaceutical uptake pattern and radiographic appearance of the sacroiliac region in horses. Seventy-nine horses undergoing bone scintigraphy with Tc-99 m-HDP and radiography of the pelvis because of lameness or poor performance were studied. Subjective and semiquantitative methods were used to characterize and compare radiopharmaceutical uptake between horses.

Authors: Girodroux, M.; Dyson, S.; Murray, R.
Journal: Equine Veterinary Journal

Reasons for performing study: Back pain is well recognised as a cause of poor performance in horses, but the role of lesions of the thoracolumbar synovial intervertebral articulations (facet joints) has not been well documented.

Objectives: To describe the clinical features, radiographic appearance and location of facet joint lesions and determine if there was any breed, gender, age, bodyweight or work discipline predilection.

Category: Equine - Imaging - Radiography - Spine