A New Surgical Device for Thoracolumbar Vertebral Fixation in Small Sized Dog: A Case Report
In human, the standard surgical technique for spinal fixation is pedicle screw and rod fixation system (PSRF). Nevertheless, this system could not be applied directly to the dog due to the anatomical differences of the vertebral column. Thus, canine vertebral screw and rod fixation system (CVSRFs) was developed to apply in dogs for vertebral stabilization.
To report a new surgical technique and device for vertebral column fixation in small dog.
A 1-year-old mixed breed dog weighting 8 kg was presented with clinical signs of paraparesis with deep pain perception. Radiography revealed vertebral fracture and luxation of T12 and T13. The operation with CVSRF system including 4 titanium vertebral screws with side loaded head (diameter of 3.5 mm. and length of 14 mm.), 2 titanium rods (diameter of 4.0 mm. with length of 30 mm.) and specific titanium inner screw, was performed for vertebral realignment and stabilization. The spinal construction and postoperative wound complication were recorded in each appointment at 0, 3, 7, 30 and 60 days after operation.
The postoperative radiography demonstrated the vertebral columns were in alignment with spinal implant. One week postoperative, the dog could be able to walk again without wound complication. Moreover, the radiography revealed the device was still in the same position after operation for 30 and 60 days.
The new surgical technique with the CVSRF system device may be beneficial for the vertebral column fixation in small sized dogs with less complication after surgery.