Traumatology

Authors: Jennifer Fowlie, Steven Arnoczky, Michael Lavagnino, Tristan Maerz and John Stick
Journal: Veterinary Surgery

Objective
To evaluate the magnitude and distribution of joint contact pressure on the medial tibial condyle after grade III cranial horn tears of the medial meniscus.
Study Design
Experimental study.
Animals
Cadaveric equine stifles (n = 6).
Methods

Category: Equine - Traumatology
Authors: G. J. MINSHALL, I. M. WRIGHT
Journal: Equine Veterinary Journal

Reasons for performing study: Tears of the radial head of the deep digital flexor (DDF) have not previously been documented.

Objectives: To describe the presentation, clinical, ultrasonographic and tenoscopic features associated with tears of the radial head of the DDF and to report the results of treatment.

Hypotheses: Tears of the radial head of the DDF cause lameness and distension of the carpal sheath of the digital flexor tendons. Removal of disrupted tissue that is extruded into the sheath can result in clinical resolution and restoration of function.

Authors: G. J. MINSHALL, I. M. WRIGHT
Journal: Equine Veterinary Journal

Reasons for performing study: To describe the presentation, clinical, ultrasonographic and endoscopic features associated with a defect in the tarsal sheath wall, to define the cavity created and to describe a method of treatment.

Hypothesis: So called ‘false thoroughpins’ can be caused by defects in the tarsal sheath wall creating a one way valve effect, removal of which could be therapeutic.

Methods: Case records and diagnostic images of horses with synoviocoeles associated with the tarsal sheath were reviewed retrospectively and follow-up information obtained.

Authors: R. MORGAN, S. DYSON
Journal: Equine Veterinary Journal

Reasons for performing study: Previous descriptions of incomplete longitudinal fractures and fatigue injury of the proximopalmar aspect of the third metacarpal bone (McIII) have focused on diagnostic imaging findings, especially in racehorses.

Objectives: To document the case details, clinical features, response to diagnostic analgesia, diagnostic imaging findings and follow-up data in a large group of horses with an incomplete longitudinal fracture or fatigue injury of the proximopalmar medial aspect of the McIII.

Category: Bone - Equine - Traumatology
Authors: Isabelle Kilcoyne, MVB; Julie E. Dechant, DVM, MS, DACVS; Philip H. Kass, DVM, PhD, DACVPM; Sharon J. Spier, DVM, PhD, DACVIM;
Journal: Journal of the American Veterinary Medical Association

Objective—To determine the outcome of penetrating injuries to the central region of the foot in equids and identify factors that may affect treatment and outcome.

Design—Retrospective case series.

Animals—63 equids (61 horses, 1 pony, and 1 mule).

Authors: Andrea L. Beisser, BA; Scott McClure, DVM, PhD, DACVS; Chong Wang, PhD; Keith Soring, DVM; Rudy Garrison, DVM; Bryce Peckham, DVM
Journal: Journal of the American Veterinary Medical Association

Objective—To determine the incidence of and compare the types of catastrophic musculoskeletal injuries (CMIs) sustained in Thoroughbreds and Quarter Horses during racing at 3 Midwestern racetracks from 2000 to 2006.

Design—Retrospective cohort study.

Animals—139 Thoroughbred and 50 Quarter Horse racehorses euthanized because of CMIs.

Authors: S. A. VALLANCE, M. SPRIET, S. M. STOVER
Journal: Equine Veterinary Journal

Reasons for performing study: To enhance understanding of the nature and pathogenesis of scapular fractures in racehorses.

Hypothesis: Scapular fractures in racehorses have a consistent configuration related to sites of pre-existing stress modelling and remodelling.

Category: Equine - Traumatology
Authors: P. D. CLEGG
Journal: Equine Veterinary Journal

Orthopaedic injury is common in the racing Thoroughbred and is a cause of both economic loss to the industry, as well as being an obvious welfare issue. Fatal injuries sustained during racing are an obvious major concern and it is important that all is done to reduce their frequency. As a consequence of the importance of these causes of horse morbidity and mortality, the Horserace Betting Levy Board in the UK has invested considerable resources into research in recent years in this area in an attempt to decrease the frequency of such injuries.

Category: Equine - Traumatology
Authors: S. Dyson, A. Nagy
Journal: Equine Veterinary Education

There is a growing body of evidence that uniaxial or biaxial ossification of the cartilages of the foot should not be discounted as irrelevant in a lame horse, especially if extensive. Potential causes of pain and lameness include primary injury of an ossified cartilage and/or the ipsilateral aspect of the distal phalanx, injury of the chondrocoronal or chondrosesamoidean ligaments and desmopathy of the collateral ligaments of the distal interphalangeal joint.

Authors: M. A. Jackson, M. Kummer, J. A. Auer, P. Ossent, M. Paar, A. E. Fürst
Journal: Equine Veterinary Education

Summary

Category: Bone - Equine - Traumatology