Objective:To investigate the concave angle of vertebral end-plate in low lumbar spine, and the changes of the angle during lumbar disc degeneration.
目的：研究下腰椎椎体终板的凹陷角以及它在腰椎间盘退变时的变化规律。
In this paper, we investigate a nonoverlapping domain decomposition algorithm for elliptic boundary value problems with infinite concave Angle domain.
研究无穷凹角型区域椭圆边值问题的一种非重叠型区域分解算法。
The concave angle of vertebral end-plates was significant increased from the control group and light degeneration group to severe degeneration group (P<0.05);
终板的凹陷角在对照组、腰椎间盘轻度和重度退变组逐渐增大，两两间差异有显著性（P< 0 0 5 ） ；
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