Case study

Authors: S. Bumbacher, M. F. Bryner, A. E. Fürst, F. Del Chicca, S. K. Ringer and M. A. Jackson
Journal: Equine Veterinary Education

A closed complete mid-diaphyseal spiral fracture of the left femur in a one-year-old donkey was treated with a 4.5 mm titanium locking compression plate distal femur (LCP-DF). This plate was originally manufactured for human orthopaedics, primarily for femoral osteosynthesis. The LCP-DF has a distal head plate that was advantageous in this case because the distal fragment was smaller. Post operative radiographs showed optimal femoral reconstruction and a callus was present 3 weeks after surgery. The donkey was sound at the walk and trot 2 months after surgery.

Authors: N Tsuzuki, JP Seo, S Haneda, K Yamada, H Furuoka, Y Tabata and N Sasaki
Journal: Australian Veterinary Journal

Case report A 13-month-old Thoroughbred filly was diagnosed with osteochondritis dissecans (OCD) of the medial tibial malleolus. A sponge impregnated with platelet-rich plasma, bone morphogenetic protein-2, mesenchymal stem cells and gelatin β-tricalcium phosphate was applied to the OCD site following arthroscopy and debridement. Postoperative radiography (every week for 16 weeks), computed tomography (CT) (16 weeks postoperatively), arthroscopy (16 weeks postoperatively) and biopsy of the regenerated tissue (16 weeks postoperatively) were performed to evaluate the outcome.

Authors: Dietrich Pizzigatti, Carlos Alberto Hussni, Celso Antonio Rodrigues, Marcos Jun Watanabe, Juliana de Moura Alonso, Luiz Carlos Vulcano, Luis Emiliano Cisneros Álvarez
Journal: Journal of Equine Veterinary Sience

Subluxation of the proximal interphalangeal joint is a rare and little studied condition in horses. We describe the case of a 12-year-old mare with bilateral dorsal subluxation of the proximal interphalangeal joint of the hind feet. Tenectomy of the medial digital flexor was performed in both limbs, and the patient showed signs of recovery within 14 days. Goniometry of the proximal interphalangeal joints 10 months after surgery showed diminution of 5° for the proximal interphalangeal axis of the left hind limb. However, no change was found for the joint angle of the right limb.

Category: Case study - Equine
Authors: Varun Prabhakar, Mulinti Raghunath, Tarunbir Singh, Narinder Singh Saini, Jitender Mohindroo, Shashi Kant Mahajan
Journal: Journal of Equine Veterinary Science

A 7-month-old, 180-kg, female foal was presented with open diaphyseal fracture of the left third metacarpal bone. The fractured limb was stabilized preoperatively with external coaptation. Open reduction and internal fixation were done using 4.5-mm broad dynamic compression plate, which was applied in a neutralization manner. Postoperatively, external support with padded bandage reinforced with gutter splint made of fiber glass was provided. The incisional infection and the contaminated wound on medial aspect of the metacarpal were managed with regular dressing.

Authors: M. Biggi, T. Blunden, S. Dyson
Journal: Equine Veterinary Education
Category: Case study - Equine - Podiatry
Authors: M. S. Madron, S. R. McClure and M. Yaeger
Journal: Equine Veterinary Education

Summary

Category: Bone - Case study - Equine
Authors: A. J. Daniel, C. E. Judy and T. Saveraid
Journal: Equine Veterinary Education

Injection of local anaesthetic solution around the palmar nerves at the base of the proximal sesamoid bones is typically considered to desensitise structures distal to this location. There has been recent research investigating the potential for proximal diffusion of local anaesthetic solution resulting in desensitisation of structures other than those intended.

Category: Case study - Equine - MRI
Authors: Imke Janssen, Jan-Hein Swagemakers, Marc Koene, Christoph Lischer
Journal: Journal of Equine Veterinary Science

This case report demonstrates the development and management of an osseous cyst-like lesion in the spongiosa of the navicular bone in a high-level show jumper with chronic intermittent forelimb lameness. The first evidence of navicular bone pathology was increased signal intensity on fat-suppressed images in the medulla of the right navicular bone, which progressed to a cystic lucency identified on radiographs at 24 months.

Category: Bone - Case study - Equine - MRI
Authors: Marco Pepe, Francesca Beccati, Rodolfo Gialletti, Franco Moriconi
Journal: Journal of Equine Veterinary Science

A 20-year-old Argentinian gelding was evaluated for sudden weakness, muscular tremors, tachypnea, and reluctance to move. On admission, a mild bilateral hyperextension of the carpi was noticed. On the basis of the clinical, laboratory, and ultrasonographic findings, a diagnosis of diaphragmatic hernia was made. During confinement, the hyperextension of the carpi worsened. Because radiographic examination of both carpi revealed palmar-lateral diastasis of the accessory carpal bone, bilateral rupture of the palmar carpal ligament (PCL) was suspected.

Authors: Sue Dyson
Journal: Journal of Equine Veterinary Science

The clinical features, response to local analgesia, and imaging findings of two mature sport horses with lameness associated with abnormal mineralization of the dorsal aspect of the central tarsal bone and a small osseous cyst-like lesion are described. Although the radiological findings and the lesions identified using magnetic resonance imaging were similar, the lameness characteristics and responses to perineural analgesia differed. One horse failed to respond to treatment and was retired. The second horse was humanely destroyed.

Category: Bone - Case study - Equine