PDF(Pubmed)
Abstract：
UNASSIGNED: The developmental size of the cervical spinal canal varies considerably. Neural compression and injury are more likely with a developmentally small spinal canal. This study was designed to develop a population reference range for developmental cervical spinal canal size for the Hong Kong population.
UNASSIGNED: Prospective study of 522 ambulatory patients (256 males, 266 females, mean age 55±18 years; range, 20-89 years) who underwent computed tomography (CT) neck examinations. Using a manually operated segmentation program, spinal canal, and vertebral body cross-sectional area (CSA), anteroposterior (AP) sagittal diameter, and width were measured at each level from C3-C7. Patient height and weight were measured.
UNASSIGNED: Considerable variation in spinal canal size existed with, for example, a 164-168% variation exists for males and females between the largest and smallest spinal canal CSA at C5. All spinal canal measurements increased slightly with height (r=0.25-0.36, P<0.001), while vertebral body AP sagittal diameter increased with age (r=0.48-0.51, P<0.001). All spinal canal measurements were larger (<0.0001) in males. Although spinal canal CSA was larger in males (at C5, males 276.0±41.5 mm2; females 252.6±38.4 mm2), relative to vertebral body CSA, spinal canal CSA was larger in females. Arbitrary population thresholds indicating the smallest 25% spinal canal CSA and AP sagittal diameter as well as other parameters were defined.
UNASSIGNED: There is a large variation in developmental cervical spinal canal size within the Hong Kong population. A reference range of developmental spinal canal size was developed which will enable an objective assessment of an individual\'s cervical spinal canal size relative to the wider population.
UNASSIGNED: Prospective study of 522 ambulatory patients (256 males, 266 females, mean age 55±18 years; range, 20-89 years) who underwent computed tomography (CT) neck examinations. Using a manually operated segmentation program, spinal canal, and vertebral body cross-sectional area (CSA), anteroposterior (AP) sagittal diameter, and width were measured at each level from C3-C7. Patient height and weight were measured.
UNASSIGNED: Considerable variation in spinal canal size existed with, for example, a 164-168% variation exists for males and females between the largest and smallest spinal canal CSA at C5. All spinal canal measurements increased slightly with height (r=0.25-0.36, P<0.001), while vertebral body AP sagittal diameter increased with age (r=0.48-0.51, P<0.001). All spinal canal measurements were larger (<0.0001) in males. Although spinal canal CSA was larger in males (at C5, males 276.0±41.5 mm2; females 252.6±38.4 mm2), relative to vertebral body CSA, spinal canal CSA was larger in females. Arbitrary population thresholds indicating the smallest 25% spinal canal CSA and AP sagittal diameter as well as other parameters were defined.
UNASSIGNED: There is a large variation in developmental cervical spinal canal size within the Hong Kong population. A reference range of developmental spinal canal size was developed which will enable an objective assessment of an individual\'s cervical spinal canal size relative to the wider population.
摘要：
■颈椎管的发育大小差异很大。神经压迫和损伤更可能与发育较小的椎管。这项研究旨在为香港人口开发发育性颈椎管大小的人口参考范围。
■对522名门诊患者（256名男性，266名女性,平均年龄55±18岁；范围，20-89岁）接受计算机断层扫描（CT）颈部检查。使用手动操作的分割程序，椎管,和椎体横截面积(CSA)，前后（AP）矢状径，和宽度在C3-C7的每个水平处测量。测量患者身高和体重。
■椎管大小存在相当大的变化，例如,男性和女性在C5最大和最小的椎管CSA之间存在164-168％的差异。所有椎管测量值随身高的增加而略有增加(r=0.25-0.36,P<0.001),椎体AP矢状径随年龄增加而增大(r=0.48～0.51,P<0.001)。男性的所有椎管测量值均较大（<0.0001）。尽管男性的椎管CSA较大（C5，男性276.0±41.5mm2；女性252.6±38.4mm2），相对于椎体CSA，女性椎管CSA较大。定义了任意人群阈值，表明最小的25％椎管CSA和AP矢状直径以及其他参数。
■在香港人口中，发育性颈椎管的大小差异很大。开发了发育性椎管大小的参考范围，这将能够相对于更广泛的人群客观评估个体的颈椎管大小。
■对522名门诊患者（256名男性，266名女性,平均年龄55±18岁；范围，20-89岁）接受计算机断层扫描（CT）颈部检查。使用手动操作的分割程序，椎管,和椎体横截面积(CSA)，前后（AP）矢状径，和宽度在C3-C7的每个水平处测量。测量患者身高和体重。
■椎管大小存在相当大的变化，例如,男性和女性在C5最大和最小的椎管CSA之间存在164-168％的差异。所有椎管测量值随身高的增加而略有增加(r=0.25-0.36,P<0.001),椎体AP矢状径随年龄增加而增大(r=0.48～0.51,P<0.001)。男性的所有椎管测量值均较大（<0.0001）。尽管男性的椎管CSA较大（C5，男性276.0±41.5mm2；女性252.6±38.4mm2），相对于椎体CSA，女性椎管CSA较大。定义了任意人群阈值，表明最小的25％椎管CSA和AP矢状直径以及其他参数。
■在香港人口中，发育性颈椎管的大小差异很大。开发了发育性椎管大小的参考范围，这将能够相对于更广泛的人群客观评估个体的颈椎管大小。
