Moissonnier Pierre, Gossot Pauline, Scotti Stefano
Department of Surgery, Ecole Nationale Vétérinaire d'Alfort, Maisons Alfort Cedex, France.
Vet Surg. 2011 Dec;40(8):1029-32. doi: 10.1111/j.1532-950X.2011.00876.x. Epub 2011 Sep 28.
To radiographically assess the influence of thoracic hemivertebra on kyphosis and neurologic status in 45 dogs.
Case series.
French Bulldogs without neurologic signs (n = 41) and 4 dogs with compressive spinal cord disease associated with hemivertebra.
Thoracic spinal radiographs were divided into 3 groups: 1 = dogs with no hemivertebra, 2 = dogs with hemivertebra but no associated neurologic signs, and 3 = dogs with hemivertebra associated with clinical signs. Vertebral canal height, vertebral column angle, and the step between 2 adjacent vertebrae were measured in each group.
Vertebral canal height was not significantly different in the 3 groups; however, mean vertebral column angle was significantly (P < .001) different between groups 1 (178°) and 2 (169°), and group 3 (133°). Median cranial step was significantly different between groups (P < .001): 0 mm (group 1), 0.3 mm (group 2), 3 mm (group 3).
Vertebral canal height does not differ between normal dogs and dogs with thoracic hemivertebra. There is an important association between neurologic signs and kyphosis and subluxation.
Vertebral realignment without vertebral canal opening could lead to spinal cord decompression in dogs affected by thoracic hemivertebra.
通过影像学评估45只犬胸椎半椎体对脊柱后凸和神经状态的影响。
病例系列。
无神经症状的法国斗牛犬（n = 41）和4只患有与半椎体相关的压迫性脊髓病的犬。
胸椎X线片分为3组：1组 = 无半椎体的犬，2组 = 有半椎体但无相关神经症状的犬，3组 = 有半椎体且伴有临床症状的犬。测量每组的椎管高度、脊柱角度以及相邻两个椎体之间的台阶。
3组之间椎管高度无显著差异；然而，1组（178°）、2组（169°）和3组（133°）之间的平均脊柱角度有显著差异（P < .001）。组间颅骨台阶中位数有显著差异（P < .001）：0毫米（1组）、0.3毫米（2组）、3毫米（3组）。
正常犬和患有胸椎半椎体的犬之间椎管高度无差异。神经症状与脊柱后凸和半脱位之间存在重要关联。
对于受胸椎半椎体影响的犬，不打开椎管进行椎体复位可导致脊髓减压。
