摘要
目的：评价自行研制的后路颈椎u型螺钉固定系统(cervical u type pedicle screw fixation system，CUFS)的生物力学性能与临床应用效果。方法：对自行设计的后路颈椎U型螺钉内固定系统(包括U型螺钉、连接棒及配套器械)在6具新鲜颈椎标本中进行强度、应变、位移、稳定性及极限等生物力学测试。在实验研究的基础上，将CUFS应用于10例颈椎疾患患者。结果：CUFS固定的颈椎标本力学性能接近正常标本。10例患者手术过程顺利，未出现神经血管损伤等并发症。经2～24个月随访，颈椎椎体高度与椎间隙高度无明显丢失，未见螺钉松动与断钉断棒等。结论：CUFS具有提拉复位作用、固定牢靠、放置方便等优势，是一种可供选择的颈后路椎弓根(侧块)固定系统。
Objective：To design the posterior cervical U type pedicle screw fixation system（CUFS） and evaluate its biomechanical function and the value of clinical application.Method：The posterior cervical U type pedicle screw fixation system（CUFS） was designed.Six cervical sample which from fresh cadaver was fixed by the system.Test of its biomechanical function was taken including：intensity,strain,translocation,stability,and limitation etc.Ten cases had been treated with CUFS.Result：The biomechanical function of cervical sample fixed with CUFS was similar to the normal sample.The operation of 10 patients was successful,without the complication of the nerve or blood vessel damage.The following up was 2 to 24 months,the height of cervical vertebra and intervertebra did not lose obviously,it was found neither screw loosing nor screw,bar broken. Conclusion：CUFS is a kind of posterior cervical pedicle （lateral mass） fixation system,it has superiority of stability,convenient fixation and pulling reduction etc.
出处
《中国脊柱脊髓杂志》
CAS
CSCD
2005年第12期732-735,共4页
Chinese Journal of Spine and Spinal Cord
关键词
颈椎
U型螺钉
椎弓根
内固定
生物力学
Cervical vertebra
U type screw
Pedicle
Internal fixation
Biomechanics
