Gutierrez-Quintana R, Edgar J, Wessmann A, Cherubini G B, Penderis J
School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, UK.
J Small Anim Pract. 2012 Aug;53(8):470-5. doi: 10.1111/j.1748-5827.2012.01244.x.
To evaluate the accuracy of the cutaneous trunci reflex to localise thoracolumbar spinal cord injuries and to assess the correlation between focal loss (cut-off) of the reflex and clinical severity of thoracolumbar spinal cord injury.
Prospective study of 41 dogs with thoracolumbar spinal cord injuries investigated by magnetic resonance imaging. Linear regression analysis was performed to determine the relationship between the vertebral level of the cutaneous trunci reflex cut-off and the maximal and cranial lesion extent. The association between cutaneous trunci reflex cut-off and spinal cord injury severity was tested using a Mann-Whitney U test.
Cutaneous trunci reflex cut-off was evident in 33 (80%) of dogs. The cut-off level was 0 to 4 vertebrae caudal to the maximal spinal cord lesion in all dogs. In 16 (48.5%) dogs the cut-off was either 2 or 3 vertebrae caudal to the lesion. The presence of a cut-off significantly correlated with increasing severity (P=0.0001). Loss of the reflex occurred at less severe grades than loss of ambulation and in dogs with ambulatory paresis it was significantly (P=0.0084) associated with increasing severity.
The cutaneous trunci reflex allows localisation of thoracolumbar spinal cord lesions within four vertebrae and facilitates clinical segregation of dogs with ambulatory paresis into mild and severe categories.
评估皮节反射对胸腰段脊髓损伤进行定位的准确性，并评估反射的局灶性丧失（截断）与胸腰段脊髓损伤临床严重程度之间的相关性。
对41只胸腰段脊髓损伤犬进行前瞻性研究，采用磁共振成像进行检查。进行线性回归分析以确定皮节反射截断的椎体水平与最大和头侧病变范围之间的关系。使用曼-惠特尼U检验来检测皮节反射截断与脊髓损伤严重程度之间的关联。
33只（80%）犬出现皮节反射截断。所有犬的截断水平位于脊髓最大病变尾侧0至4个椎体。16只（48.5%）犬的截断位于病变尾侧2或3个椎体。截断的存在与严重程度增加显著相关（P=0.0001）。反射丧失发生的严重程度等级低于行走能力丧失，在有行走性轻瘫的犬中，它与严重程度增加显著相关（P=0.0084）。
皮节反射可将胸腰段脊髓病变定位在四个椎体范围内，并有助于将有行走性轻瘫的犬临床分为轻度和重度类别。
