Traumatology

Authors: Laurie A. McDuffee, LeeAnn Pack, Marcos Lores, Glenda M. Wright, Blanca Esparza-Gonzalez and Elmabrok Masaoud
Journal: Veterinary Surgery

Objective

To compare the efficacy of osteoprogenitors in fibrin glue to fibrin glue alone in bone healing of surgically induced ostectomies of the fourth metacarpal bones in an equine model.

Study Design

Experimental.

Animals

Adult horses (n = 10).

Methods

Category: Bone - Equine - Traumatology
Authors: Ellen J. Rickey, VMD, DVSc; Antonio M. Cruz, DVM, DrMedVet; Donald R. Trout, DVM, PhD; Beverly J. McEwen, DVM, PhD; Mark B. Hurtig, DVM, MVSc
Journal: American Journal of Veterinary Research

Objective—To determine whether a single contusive impact injury to the palmar aspect of the metacarpus would progress to post-traumatic osteoarthritis or palmar osteochondral disease in horses.

Animals—12 horses.

Authors: Tiffany L. Sarrafian, DVM; James T. Case, DVM, PhD; Hailu Kinde, DVM, MPVM; Barbara M. Daft, DVM, DACVP; Deryck H. Read, BVSC, PhD, DACVP; Janet D. Moore, BVSc; Francisco A. Uzal, DVM, PhD, DACVP; Susan M. Stover, DVM, PhD, DACVS
Journal: Journal of the American Veterinary Medical Association

Objective—To determine major causes of death and the anatomic location of musculoskeletal injuries in Quarter Horse racehorses in California.

Design—Retrospective case series.

Animals—314 Quarter Horse racehorses with musculoskeletal injuries that were necropsied through the California Horse Racing Board Postmortem Program from 1990 to 2007.

Authors: R. J. M. REARDON, L. A. BODEN, D. J. MELLOR, S. LOVE, J. R. NEWTON, A. J. STIRK and T. D. H. PARKIN
Journal: Equine Veterinary Journal

Reasons for performing study: Superficial digital flexor (SDF) tendinopathy is a common injury in Thoroughbred horses racing over hurdles. Identification of risk factors may allow the introduction of measures to minimise the incidence of this injury.

Objective: To identify risk factors for SDF tendinopathy in Thoroughbred horses in hurdle races in the UK.

Authors: D. WHITLOCK, T. C. GARCIA, S. A. VALLANCE and S. M. STOVER
Journal: Equine Veterinary Journal

Reasons for performing study: The specific biomechanical circumstances that induce excessive superficial digital flexor tendon (SDFT) strain in horses are unknown.

Hypothesis: Carpal joint hyperextension during axial limb loading during the middle of stance disproportionately enhances SDFT strains compared to suspensory ligament (SL) strains.

Category: Equine - Tendon - Traumatology
Authors: G. FOWLIE, S. P. ARNOCZKY, M. LAVAGNINO and J. A. STICK
Journal: Equine Veterinary Journal

Reason for performing the study: To identify potential functional-anatomical characteristics of the cranial horn attachment of the medial meniscus (MM) that may help explain the pathogenesis of the common tear patterns that have been reported.

Hypothesis: Full extension of the stifle generates a significant increase in tensile forces within the cranial meniscotibial ligament (CrMTL) of the MM, which may predispose this structure to injury.

Authors: F. Beccati, M. Pepe, S. Nannarone, C. Tamantini, R. Gialletti
Journal: Veterinary and Comparative Orthopaedics and Traumatology (VCOT)

The case report of a 14-month-old Thoroughbred filly with acute onset of severe right hindlimb lameness is presented. The horse had a severe and sudden abduction of the hindlimbs due to a side effect of an overdose of lidocaine, which had been administered in a constant rate infusion after a colic surgery. Transcutaneus ultrasonography and standing radiography of the pelvis revealed proximal and cranial displacement of the greater trochanter and free bone fragments consistent with an apophyseal avulsion fracture of the greater trochanter.

Authors: SA Vallance, JM Lumsden, AP Begg, CB O'Sullivan
Journal: Australian Veterinary Journal

Objectives To review eight horses diagnosed with idiopathic haemarthrosis and to describe the intra-articular use of yttrium-90 (90Y) and methylprednisolone acetate (MPA) in recurrent haemarthrosis cases. Design Retrospective case series. Method The medical records, diagnostic images, histopathology and outcome of all horses diagnosed with idiopathic haemarthrosis between 1998 and 2010 were reviewed. Results Four Thoroughbred racehorses with haemarthrosis of the antebrachiocarpal joint had severe acute lameness (median, grade 4) and marked joint effusion after high-speed exercise.

Authors: S. A. VALLANCE, J. T. CASE, R. C. ENTWISTLE, H. KINDE, B. C. BARR, J. MOORE, M. L. ANDERSON, R. M. ARTHUR, S. M. STOVER
Journal: Equine Veterinary Journal

Reasons for performing study: To determine if scapular fractures occur in racehorses with distinctive characteristics.

Objectives: To test the hypothesis that Thoroughbred (TB) and Quarter Horse (QH) racehorses with a scapular fracture have similar characteristics that are different from those of their respective racetrack populations.

Authors: Jonathan McLellan, BVMS; Sarah Plevin, BVMS, DABVP; Elizabeth Taylor, DVM
Journal: Journal of the American Veterinary Medical Association

Case Description—3 horses were evaluated because of lameness and swelling of the stifle joint subsequent to trauma.

Clinical Findings—All horses had characteristic clinical signs of stifle joint pain and effusion. A medial patellar fracture and lateral collateral ligament avulsion fracture were visible ultrasonographically in each. Radiography, including standard as well as flexed lateromedial, cranioproximal-craniodistal oblique (skyline patellar), and laterally stressed caudocranial views, revealed similar findings.

Category: Bone - Equine - Ligament - Traumatology