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Spinal fractures and dislocations in Cats and Dogs/Altuğ et al.
INTRODUCTION
Spinal fractures and dislocations are the main causes of
neurological diseases in small animals [1]. Spinal fractures
and dislocations may occur depending on the strength of the
trauma, its impact area, and the natural aspects, strengths
and weaknesses of the spine [2]. Falling from a height, vehicle
accidents, bite wounds and gunshot wounds are among the
main causes of spinal fractures and dislocations [2, 3, 4]. Spinal
fractures and/or dislocations account for 6% of all spinal cord
diseases in cats and 7% in dogs [5, 6].
Different degrees of neurological disorders, compressive
lesions, medullary edema and trauma-related spinal cord
ruptures may occur after spinal trauma. Depending on the
severity of spinal cord damage, animals may experience
permanent paralysis or death [7]. The main aim of treatment in
spinal fractures and dislocations is to relieve the nerve under
pressure and to prevent secondary damage. For this aim, anti-
inflammatory drugs, antioxidants, fusogens and analgesics are
used as medical treatment and the animal's movements are
restricted [8].
As a surgical treatment, the vertebral canal and intervertebral
foramen are brought to their normal position, relieving the
compression on the spinal cord, and stabilizing the affected
vertebrae, limiting the damage to the spinal cord and nerve roots
[9]. Deep pain testing is a good indicator of spinal cord injury. It
has been reported that the prognosis of cats and dogs without
deep pain sensation is poor [10]. Previous studies on spinal
fractures or dislocations focused on a single treatment method or
spine segment and focused on comparisons between treatment
methods [4, 9, 11, 12]. Although retrospective studies have
been conducted on spinal fractures and dislocations [2, 8, 13],
no information has been provided about the cause of trauma in
cats and dogs and the effect of the process over the trauma on
recovery.
In this study, it was aimed to evaluate the etiological
evaluation of spinal fractures and dislocations of cats and dogs,
as well as the clinical effects of trauma causes, the process
after trauma, deep pain sensations and trauma localization on
recovery.
MATERIALS AND METHODS
A total of 112 cases, 80 cats and 32 dogs, that were presented
to Hatay Mustafa Kemal University Veterinary Health Application
and Research Hospital (HMKU VETSUAM) between 2016-2021
and were registered, were included in the study. Patients were
routinely processed upon anamnesis, examination, diagnosis
and treatment protocol. The breed, age, gender, accommodation
conditions, etiology of the disease, duration of the disease,
clinical condition of the patient, localization of the affected spine,
condition of the spine, deep pain sensation, and treatment option
of the patients were recorded. The age classication of the cases
was categorized as Juvenile (<6 months of age), sub-adults (6
months to 1 year) and adult (>1 year) as reported by Stacharski
et al. [14]. The duration of the trauma was evaluated as the rst
24 hours, or the next 24 hours after the trauma. Latero-lateral
and ventro-dorsal radiographs were taken in the radiological
evaluation of the patients. Fractures and/or dislocations formed
in the spine and the area where they were formed were detected.
The neurological and radiographic examination
Conservative and surgical treatments
Statistical analysis
In the neurological evaluation, paraplegia, tetraplegia,
paraparesis, tetraparesis conditions were recorded. Considering
the neurological and radiographic examination results, the
trauma area was classied as cervical (C1–C5), cervico-thoracic
(C6-Th2), thoracolumbar (Th3–L3) and lumbosacral (L4-
S3) according to the affected spinal cord segment. Deep pain
sensations were evaluated according to the change in facial
expression of the animal, the sound it produced, the tendency to
turn towards the area where the hemostatic was squeezed and/
or bite, by squeezing the areas between the fore and hind toes
with the help of a hemostatic [15].
All statistical analyses were performed using IBM SPSS
Statistics software Version 23.0. Categorical variables included
in the study were subjected to the Chi-square test and calculated
as "Frequency (n) - Percentage (%)". P<0.05 was considered as
signicant.
The type of treatment was determined according to the
deep pain sensation or the operation requests of the patient’s
owner. 10 cats and 5 dogs without deep pain sensation were
discharged without any treatment at the request of their
owners. Conservative and surgical treatments were evaluated
as treatment options. In the conservative treatment, besides
cage rest and external coaptation, 30 mg/kg intravenous
methlyprednisolone sodium succinate (Prednol, Mustafa Nevzat
İlaç Sanayii A.Ş, Istanbul) was administered in the first 24 h
after the trauma, and 5.4 mg/kg/h [16] sodium intravenous
methlyprednisolone succinate was administered 24 hours
later for neuroprotective effect. In addition, intramuscular B
complex vitamin (Nervit, Vetaş, Istanbul) and 30 mg/kg cefazolin
sodium (Sefazol, Mustafa Nevzat İlaç Sanayii A.Ş, Istanbul)
intramuscularly for prophylaxis were administered. Various
stabilization techniques and implants (pedicle screw, plate, pin
and polymethyl methacrylate stabilizations, etc.) were used
in the surgical treatment. After the treatment, paralysis was
considered if there was no use of extremities, partial paralysis if
the use of the extremity was limited and deep pain sensations
were weak, and complete recovery if the use of extremities was
functional [8, 13]. The cases were followed for 2 months to reveal
their clinical and neurological conditions [8, 13].
RESULTS AND DISCUSSIONS
A total of 112 animals, including 80 cats (71.43%) from 8
different breeds and 32 dogs (28.57%) from 9 different breeds,