| 颈椎失稳临界值和极限强度的测量 |
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| 引用本文： | 姜宏,施杞,王以进.颈椎失稳临界值和极限强度的测量[J].医用生物力学,1997,12(4):224-226. |
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| 作者姓名： | 姜宏 施杞 王以进 |
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| 作者单位： | 苏州市中医院(姜宏)，上海中医药大学(施杞)，上海大学嘉定校区(王以进) |
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| 摘 要： | 选用四具新鲜尸体颈椎标本（C_1～C_7）制成生物力学实验模型。经测量发现,正常颈椎失稳的临界值为887N,极限强度值为1457N。当C_(5～6)椎间盘部分切除后两者分别下降至601N和880N提示椎间盘破坏后颈椎抵御外力的作用降低,较易出现各类急慢性损伤。
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| 关 键 词： | 颈椎失稳 临界值 极限强度 测量 |
MEASUREMENTS ON THE CRITICAL INSTABILIZATION VALUE AND THE ULTIMATE STRENGTH OF HUMAN CERVICAL SPINE |
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| Abstract: | Four specimrens of human carvical spine (C1C7) were selected from fresh cadavers and made into samples for biomedchanical laboratory testiy. The measured critical value of stability loss for normal and healthy cervical spine is 887N, while the ultimate strength 1457N. The magnititudes of these 2 partraeters redueced to 601N and 880N respectively following resection of C5-6. disc. The results indicate that after injury of the disc, the resistance of the cervical spine to external force decreases and futher acute and chronic injury of cervical spine may easily occur. |
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