Tendon

Authors: Avella, C.S.; Ely, E.R.; Verheyen, K.L.P.; Price, J.S.; Wood, J.L.N.; Smith, R.K.W.
Journal: Equine Veterinary Journal

Reasons for performing study: It is important to ascertain the prevalence of superficial digital flexor tendon (SDFT) injuries and to improve methods of predicting injury in National Hunt (NH) racehorses.

Objectives: To establish: 1) the prevalence of SDFT tendinopathy in NH horses; 2) whether routine ultrasonography can be used to predict SDFT injuries; 3) whether previous tendinopathy predisposes to reinjury; 4) a normal range for the SDFT cross-sectional area (CSA); and 5) the effects of gender, age, background (ex-flat or exstore), limb, training and rest periods on SDFT CSA.

Category: Equine - Tendon - Ultrasound
Authors: SARAH M. PUCHALSKI , LARRY D. GALUPPO , CLIFTON P. DREW , ERIK R. WISNER
Journal: Veterinary Radiology & Ultrasound

We compared contrast-enhanced computed tomography (CT) and high field magnetic resonance (MR) imaging in a horse with deep digital flexor tendonopathy. Lesions in the distal extremity were documented grossly and histopathologically. In contrast-enhanced CT, the deep digital flexor tendon lesions were markedly contrast enhancing with evidence of angiogenesis in the core and dorsal border lesions. The lesion morphology was clearly delineated on MR imaging, but without contrast media angiogenesis cannot be identified.

Category: CT - Equine - Imaging - Tendon
Authors: Bosch, G.; de Mos, M.; van Binsbergen, R.; van Schie, H.T.M.; van de Lest, C.H.A.; van Weeren, P.R.
Journal: Equine Veterinary Journal

Reasons for performing study: Extracorporeal shock wave therapy (ESWT) is frequently used in equine practice, but little is known about its biological action.

Objectives: To study the effects of ESWT on matrix structure and gene expression levels in normal, physiologically loaded tendinous structures in ponies.

Category: Tendon
Authors: MATHIEU SPRIET , ALEXIA McKNIGHT
Journal: Veterinary Radiology and Ultrasound

Three isolated equine limbs were imaged with a low-field magnetic resonance system with a vertical magnetic field. Each limb was scanned in multiple positions with mild variation of the angle between the magnetic field and the long axis of the limb. When the long axis of the limb was not perpendicular to the magnetic field, a linear hyperintense signal was present at the palmar aspect of one of the deep digital flexor tendon lobes, at the level of the navicular bone and collateral sesamoidean ligaments, in proton density and T1-weighted pulse sequences.

Category: Equine - Imaging - MRI - Tendon
Authors: Blunden, A.; Murray, R.; Dyson, S.
Journal: Equine Veterinary Journal

Reasons for performing study: Lameness associated with lesions of the deep digital flexor tendon (DDFT) in the digit is now recognised as an important cause of lameness, but there is currently limited information about the pathological nature of the lesions.

Objectives: To compare: signal intensity changes on magnetic resonance images with histopathology; and histopathological changes in the DDFT from horses with no history of foot-related lameness (Group C) and horses with lesions of the DDFT confirmed using magnetic resonance imaging (MRI) (Group D).

Authors: Hans T. M. van Schie, DVM, PhD, Erwin M. Bakker, PhD, Worakij Cherdchutham, DVM, PhD, A. Mieke Jonker, MD, PhD, Chris H. A. van de Lest, PhD, P. René van Weeren, DVM, PhD
Journal: American Journal of Veterinary Research

Objective—To evaluate quantitative ultrasonography for objective monitoring of the healing process and prognostication of repair quality in equine superficial digital flexor (SDF) tendons.

Animals—6 horses with standardized surgical lesions in SDF tendons of both forelimbs.

Category: Equine - Tendon - Ultrasound
Authors: T.J.P. SPOORMAKERS, A. DE VRIES, K. VAN MUISWINKEL, F. TER BRAAKE
Journal: Flemish Veterinary Journal

ABSTRACT Desmotomy of the accessory ligament of the deep digital flexor tendon is a frequently performed surgical technique in foals to treat flexural limb deformity of the distal interphalangeal joint. In this retrospective study with 40 foals varying in age from 15 days to 18 months, 53 desmotomies were performed. The follow-up period varied from 2 to 12 years. In 85% (34/40) of the foals a desmotomy had a successful outcome. Both type 1 and 2 flexural deformities could be corrected.

Category: Equine - Tendon
Authors: C. Mespoulhès-Rivière, A. Martens, L. Bogaert, H. Wilderjans
Journal: Veterinary and Comparative Orthopaedics and Traumatology

Distal limb lacerations are common injuries in horses, with a better prognosis reported for extensor tendons lacerations compared to flexor tendons lacerations. The objective of the present study was to determine the influence of type and location of injury, modalities of treatment and post surgical complications on the outcome of extensor tendon lacerations. The medical records of 156 horses surgically treated for extensor tendon lacerations over a 10-year period were analysed retrospectively. Information was obtained for 124 horses with a minimum of 18 months follow-up.

Category: Equine - Tendon - Traumatology
Authors: Alan J. Nixon, BVSc, MS; Linda A. Dahlgren, DVM, PhD; Jennifer L. Haupt, BS; Amy E. Yeager, DVM; Daniel L. Ward, PhD
Journal: American Journal of Veterinary Research

Objective—To assess the potential of adipose-derived nucleated cell (ADNC) fractions to improve tendon repair in horses with collagenase-induced tendinitis. Animals—8 horses. Procedures—Collagenase was used to induce tendinitis in the superficial digital flexor tendon of 1 forelimb in each horse. Four horses were treated by injection of autogenous ADNC fractions, and 4 control horses were injected with PBS solution. Healing was compared by weekly ultrasonographic evaluation. Horses were euthanatized at 6 weeks.

Category: Equine - Stem cells - Tendon
Authors: ALEC J.R. JORGENSEN, OLGA SECO DIAZ, VIRGINIA B. REEF
Journal: Veterinary Radiology and Ultrasound

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Category: Equine - Imaging - Tendon - Ultrasound