A nine-month-old male Pekingese weighing 5.7 kg was admitted to the Veterinary Medical Center at Chungbuk National University with a history of acute nonambulatory tetraparesis after minor trauma. A diagnosis of atlantoaxial instability with a dens axis fracture was based on examination of survey spinal radiographs and was confirmed during surgery. A modified ventral fixation technique using cortical screws was used for stabilization of the atlantoaxial joint. Serial evaluation based on radiographic and neurologic assessment was performed eight weeks after surgery. Symptoms of tetraparesis disappeared gradually, and arthrodesis of the atlantoaxial joint using a ventral fixation technique has maintained stable fixation.

The purpose of this study was to compare the effectiveness of modified vertical roll sling and conventional Bobath roll sling in reducing hemiplegic shoulder subluxation. Radiography of anterior oblique radiographic view' were taken, before and immediately after wearing each sling in 13 hemiplegic patients. The vertical distance. horizontal distance. and joint distance were measured. Analysis of radiographically measured distances showed that both modified vertical roll sling and Bobath roll sling decreased vertical, horizontal. and joint distances. Reduction in vertical and joint distances were significantly greater in modified vertical roll sling compared to Bobath roll sling. while horizontal distance showed no significant difference between the two slings. Therefore it can be concluded that modified vertical roll sling is an effective orthosis in reducing hemiplegic shoulder subluxation.