Lumbar facet joint tropism does not accelerate degeneration of the facet joints.
Lumbar facet joint tropism does not accelerate degeneration of the facet joints.
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发表时间：
1997-08
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影响因子：
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通讯作者：
J. Grogan;B. Nowicki;Tanner Schmidt;V. Haughton
中科院分区：
文献类型：
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作者：
J. Grogan;B. Nowicki;Tanner Schmidt;V. Haughton
目的探讨腰椎小关节向向性与小关节软骨和皮质下骨退变的关系及其在腰椎间盘退变中的作用。方法在CT上测量104具身体腰椎小关节相对于矢状面的方位，将关节分为无向位、轻度向位和重度向位。在MR图像上，测量软骨退变和骨硬化的严重程度。计算了倾向性和退变之间的关系，以及年龄、脊柱水平和退变之间的关系。结果共鉴定出4个脊柱节段有严重的倾斜，6个有中度的倾斜，94个没有倾斜。有倾向性的关节软骨退变并不明显比无倾向性的关节严重。有倾向性的关节比无倾向性的关节硬化程度稍高。硬化症和软骨退行性变与年龄和脊柱节段显著相关。结论年龄、脊柱水平、小关节整体角度是影响小关节退变的重要因素。
PURPOSE To study the relationship of lumbar facet joint tropism to degeneration of the cartilage and subcortical bone in the facet joints and the effect of tropism in intervertebral disk degeneration. METHODS The orientation of 104 cadaveric lumbar facet joints with respect to sagittal plane was measured on CT scans, and the joints were classified as having no tropism, mild tropism, or severe tropism. On MR images, the severity of cartilage degeneration and bony sclerosis was measured. The correlation between tropism and degeneration was calculated, as was the relationship among age, spinal level, and degeneration. RESULTS We identified four spinal levels with severe tropism, six with moderate tropism, and 94 without tropism. Cartilage degeneration was not significantly more severe in the joints with tropism than in the joints without. Sclerosis was slightly greater in the joints with tropism than in the joints without it. Sclerosis and cartilage degeneration were significantly related to age and spinal level. CONCLUSION Age, spinal level, and overall facet joint angle are more important factors in facet joint degeneration than is tropism.