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WSVA8-0099
NEUROLOGY - NEUROSURGERY
UNILATERAL VERTEBRAL BODY PLATE FIXATION IN MIDDLE BREED CANINE VERTEBRAL FRACTURE
K. Ho Young1, C. Han1, Z. Piao1, H. So1, D.P. Park1, Y.K. Kim1, K.L. Lee2, N.K. Kim1
1Chonbuk National University, Surgery, Ik-san, Republic of Korea
2Chonbuk National University, Diagnostic imagoing, Ik-san, Republic of Korea
INTRODUCTION
Traumatic vertebral fractures are common serious emergencies in small animal practice. Surgical techniques are described for fixation of thoracolumbar vertebral fractures and luxations in dogs including vertebral body plating, cross pinning, spinal stapling, polymethylmethacrylate (PMMA)-pin fixation. In this case, we used unilateral vertebral body plate fixation to stabilize the traumatic vertebral body fracture.
OBJECTIVES
To evaluate the efficacy and stabilization of Unilateral vertebral body plate fixation in middle breed canine vertebral fracture.
METHODS
A 5-years-old intact male, 23kg, mixed dog was presented to the Animal Medical Center Chonbuk National University with a history of fall from the cliff in hunting.
In Neurologic examinations, patient was paraparetic and had loss of bilateral conscious proprioception, hopping reflex. Deep pain perception was weak in left hind limb and absent in right hind limb. Radiographs demonstrated a Vertebral fracture at L2-L3 with fractures of spinous process
From this study, it is known that Unilateral vertebral fixation is one of the good options to stabilize vertebral fracture in middle breed dog.
Your Singapore, the Tropical Garden City
WSVA8-0092
NEUROLOGY - NEUROSURGERY
THE USE OF CANINE VERTEBRAL SCREW AND ROD FIXATION SYSTEM FOR VERTEBRAL STABILIZATION IN 48 DOGS
P. Lewchalermwong1, T. Hamnilrat2, N. Phoonsajarern3
1Kasetsart University, Veterinary Teaching Hospital, Bangkok, Thailand
2Kasetsart University, Veterinary Teaching Hospital, Nakornpathom, Thailand
3Kasetsart University, Veterinary Teaching Hospital, Huahin, Thailand
INTRODUCTION
Canine vertebral screw and rod fixation system (CVSRF) was specially developed for vertebral column stabilization in dog. It made from titanium alloy to decrease postoperative complications. All outcomes of mechanical testing of the CVSRF during bending were better than Screw-PMMA technique.
OBJECTIVES
To report the success of vertebral stabilization using canine vertebral screw and rod fixation system in dog.
METHODS
Forty-eight dogs with body weight range from 5-25
kg were refer to the Neurological center of Kasetsart University Veterinary Teaching Hospital. They were presented with clinical signs of paraparesis from vertebral fracture and luxation between the 6th thoracic vertebrae to the 1st sacrum. The operation with CVSRF system was performed to stabilization at bilateral of the vertebrae. Screw with diameter 3.5 mm and rod with diameter 4.0 mm was used as an implant and adjusted the length of screw and rod according to their body weight. The spinal construction and postoperative wound complication were recorded in each appointment at 0, 7 and 30 days after operation.
RESULTS
Postoperative radiography demonstrated the vertebral columns were in alignment with spinal implant in all patients. All postoperative wounds were completely healed without complication after operation for 7 and 30 days. However,
a week later after surgery, 6.25% of them (n = 3) found a loosening of the screw from the vertebral body.
CONCLUSIONS
The CVSRF system device could be a benefit instrument for the vertebral column fixation in small to medium size dogs with less complication wound after surgery.
    Based on these results, it was diagnosed lumbar vertebral fracture. Because of rapid loss of function in the hind limbs, Hemilamincetomy and unilateral 2.7 locking plate fixation was performed the same day.
RESULTS
Two days after surgery, deep pain was recovered and the superficial pain recovered the next day. After cage rest for a week, rehabilitation and acupuncture therapy was performed. Postoperative radiographs taken to evaluate plate placement two weeks after surgery showed no migration and infections.
CONCLUSIONS
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