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KMID : 1094020080250020131
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Journal of Veterinary Clinics
2008 Volume.25 No. 2 p.131 ~ p.135
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Ventral Fixation of Atlantoaxial Joint under Fluoroscopic Guidance Using Screws in a Chihuahua Dog
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Lee Jae-Hoon
Yang Hee-Taek
Yang Wo-Jong
Chung Da-Jung
Kang Eun-Hee
Eom Ki-Dong
Choi Chi-Bong
Chang Hwa-Seok
Kim Hwi-Yool
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Abstract
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A 5-year-old Chihuahua dog was evaluated for a tetraparesis. The dog was presented with a non-ambulatory tetraparesis and neck pain. Radiography demonstrated an atlantoaxial (AA) subluxation and increased distance between the dorsal arch of the C1 and the dorsal spinous process of the C2. The AA joint was fixed with ventral transarticular fixation using two screws under fluoroscopic guidance. Neck brace was applied during 3 weeks post-operation. After 4 weeks, the dog was fully ambulatory with improved neurological function. Postoperative radiographs confirmed reduction of the luxation and no migration of screws. The dog showed complete resolution of clinical signs without signs of recurrence till 4 months after operation. Proper angulations of screws provided under fluoroscopic guidance, enabled adequate stabilization of the AA joints using ventral transarticular screw fixation which improved neurologic outcome of the patient.
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KEYWORD
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atlantoaxial subluxation, ventral fixation, fluoroscopic guidance, screw, dog
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