Traumatology

Authors: G. J. Minshall and I. M. Wright
Journal: Equine Veterinary Journal

Summary Reasons for performing study Accurate radiological and ultrasonographic descriptions of frontal plane fractures of the accessory carpal bone (ACB) are lacking, and implications of these fractures for the carpal sheath and its contents have not previously been reported.

Authors: J. McLellan and J.-M. Denoix
Journal: Equine Veterinary Education

Damage to the origin of the gastrocnemius and superficial digital flexor muscles has been previously reported as an acute injury in both foals and adult horses. This case report describes, for the first time, the clinical onset of caudal reciprocal apparatus failure in a 2-year-old Thoroughbred. These signs were due to injury of the gastrocnemius and superficial digital flexor muscle origins sustained prior to the onset of lameness. This condition should be considered in cases demonstrating similar clinical signs, even in the absence of known trauma or acute injury to the region.

Authors: J. A. Findley, G. L. Pinchbeck, P. I. Milner, B. M. Bladon, J. Boswell, T. S. Mair, J. M. Suthers and E. R. Singer
Journal: Equine Veterinary Journal

Summary
Reasons for performing study

The factors associated with outcome following solar foot penetration involving synovial structures treated using endoscopic lavage have not been described in the UK population.
Objectives

To provide descriptive data on horses with synovial contamination or sepsis following solar penetration in 4 UK equine referral hospitals and to identify specific factors associated with the outcome.
Study design

Retrospective case series.
Methods

Authors: F. N. Amitrano, S. D. Gutierrez-Nibeyro and S. K. Joslyn
Journal: Equine Veterinary Education

Radiographic evaluation of the pelvis in standing horses has been used to diagnose fractures of the pelvis, head and greater trochanter of the femur, and luxations of the coxofemoral joint. Coxofemoral luxation injuries are more common in smaller horse breeds and donkeys, but, due to their size, the standing ventrodorsal projection is not possible, as there is insufficient space to place the radiography equipment under the animal's abdomen.

Authors: M. R. W. Smith, I. M. Wright
Journal: Equine Veterinary Journal

Summary
Reasons for performing study

Fractures of the proximal phalanx are generally considered to result from monotonic supraphysiological loads, but radiological observations from clinical cases suggest there may be a stress-related aetiology.
Objectives

To determine whether there are radiologically identifiable prodromal changes in Thoroughbred racehorses with confirmed parasagittal fractures of the proximal phalanx.
Study design

Retrospective cross-sectional study.
Methods

Authors: Claire E. Welsh, Thomas W. Lewis, Sarah C. Blott, Dominic J. Mellor, Kenneth H. Lam, Brian D. Stewart, Timothy D.H. Parkin
Journal: The Veterinary Journal

A retrospective cohort study of important musculoskeletal conditions of Thoroughbred racehorses was conducted using health records generated over a 15 year period (n = 5062, 1296 sires). The prevalence of each condition in the study population was: fracture, 13%; osteoarthritis, 10%; suspensory ligament injury, 10%; and tendon injury, 19%. Linear and logistic sire and animal regression models were built to describe the binary occurrence of these musculoskeletal conditions, and to evaluate the significance of possible environmental risk factors.

Authors: Marianna Biggi, Sue Dyson
Journal: Journal of Equine Veterinary Science

Three horses were identified with an unusual fracture configuration of a hindlimb navicular bone. All horses had unilateral lameness which was worse on a circle on a firm surface and was abolished by plantar nerve blocks performed at the base of the proximal sesamoid bones. Radiological findings included an ill-defined curvilinear radiolucent line along the distal horizontal border of the navicular bone in case 1; cases 2 and 3 had three fragments along the distal horizontal border, associated, in case 2, with marked abnormalities extending into the spongiosa of the bone.

Category: Equine - Traumatology
Authors: D. M. Bolt, R. M. Read, R. Weller, C. Sinclair, F. H. David
Journal: Equine Veterinary Education

This report describes the use of low-field standing magnetic resonance imaging (MRI) in the diagnosis and clinical decision making process in a 14-year-old Dutch Warmblood mare with a comminuted central tarsal bone fracture. Magnetic resonance imaging in the standing horse was preferred over computed tomography examination under general anaesthesia because the animal had sustained the injury during a poor recovery from a previous general anaesthetic episode.

Category: Bone - Equine - MRI - Traumatology
Authors: Tyler E. Tipton, DVM; Chris S. Ray, DVM, DACVS; D. Reese Hand, DVM, DACVS
Journal: Journal of the American Veterinary Medical Association

Objective—To characterize superficial digital flexor (SDF) tendon lesions in the forelimbs of cutting horses and determine recurrence rate and prognosis for this condition.

Design—Retrospective case series.

Animals—19 cutting horses with SDF tendonitis.

Category: Equine - Tendon - Traumatology
Authors: G. A. Abuja, K. A. Bubeck, D. D. Quinteros, J. M. García-López
Journal: Veterinary and Comparative Orthopaedics and Traumatology

The clinical signs, radiographic findings, surgical treatment, and outcome of three horses with luxation of the distal tarsal joints are reported. Two patients showed luxations of the tarsometatarsal joint whereas luxation of the proximal intertarsal joint was found in one case. Open reduction, followed by internal fixation was performed in two horses and closed reduction with a transfixation pin cast was performed in the third. The treatment in all three cases resulted in a satisfactory clinical outcome.

Category: Equine - Traumatology