The stress and strain distribustions were measured on four fresh cadaveric specimens of thoracolumbar spine, which were fixed in upright, 20-degree flexion and 20-degree extension positions.

• 测定分析了4例新鲜胸腰段脊柱标本分别处在直立、前屈20°、后伸20°状态，受到静载荷作用时胸腰椎前缘的应力和应变分布规律。