Hwang Jae-Chan, Bae Hak-Geun, Cho Sung-Won, Cho Sung-Jin, Park Hyung-Ki, Chang Jae-Chil
Department of Neurosurgery, College of Medicine, Soonchunhyang University, Seoul, Korea.
J Korean Neurosurg Soc. 2010 May;47(5):358-64. doi: 10.3340/jkns.2010.47.5.358. Epub 2010 May 31.
Morphometric data on dorsal cervical anatomy were examined in an effort to protect the nerve root near the lateral mass during posterior foraminotomy.
Using 25 adult formalin-fixed cadaveric cervical spines, measurements were taken at the lateral mass from C3 to C7 via a total laminectomy and a medial one-half facetectomy. The morphometric relationship between the nerve roots and structures of the lateral mass was investigated. Results from both genders were compared.
Following the total laminectomy, from C3 to C7, the mean of the vertical distance from the medial point of the facet (MPF) of the lateral mass to the axilla of the root origin was 3.2-4.7 mm. The whole length of the exposed root had a mean of 4.2-5.8 mm. Following a medial one-half facetectomy, from C3 to C7, the mean of the vertical distance to the axilla of the root origin was 2.1-3.4 mm, based on the MPF. Mean vertical distances from the MPF to the medial point of the root that crossed the inferior margin of the intervertebral disc were 1.2-2.7 mm. The mean distance of the exposed root was 8.2-9.0 mm, and the mean angle between the dura and the nerve root was significantly different between males and females, at 53.4-68.4 degrees .
These data will aid in reducing root injuries during posterior cervical foraminotomy.
研究颈背侧解剖结构的形态学数据，以便在后路椎间孔切开术中保护侧块附近的神经根。
使用25具成年福尔马林固定的尸体颈椎，通过全椎板切除术和内侧半关节突切除术，在C3至C7的侧块处进行测量。研究神经根与侧块结构之间的形态学关系。比较了两性的结果。
全椎板切除术后，C3至C7水平，侧块关节面内侧点（MPF）至神经根起始腋窝的垂直距离平均值为3.2 - 4.7毫米。暴露神经根的全长平均值为4.2 - 5.8毫米。内侧半关节突切除术后，C3至C7水平，基于MPF，至神经根起始腋窝的垂直距离平均值为2.1 - 3.4毫米。从MPF至穿过椎间盘下缘的神经根内侧点的平均垂直距离为1.2 - 2.7毫米。暴露神经根的平均距离为8.2 - 9.0毫米，硬脑膜与神经根之间的平均角度在男性和女性之间存在显著差异，为53.4 - 最大角度68.4度。
这些数据将有助于减少后路颈椎椎间孔切开术中的神经根损伤。 （注：原文中“at 53.4-68.4 degrees”这里的68.4度前面的“最大角度”是为了使逻辑更通顺添加解释性词语翻译时可不加，直接按原文翻译即可）
