Application of Dynesys dynamic fixation system in treatment of lumbar degenerative disease

doi:10.3969/j.issn.1002-7386.2015.13.008

Abstract：Objective To investigate the operation method and clinical effect of posterior dynamic neutralization system(Dynesys)in treatment of lumbar degenerative disease. Methods By means of random digits table,56 patinets with lumbar degenerative disease who were admitted into our hospital from February 2010 to April 2012 were divided into the traditional lumbar fusion operation group( traditional treatment group)and Dynesys dynamic non-fusion group( Dynesys group),with 28 patients in each group. The operation time,hemorrhage volume during operation,the therapeutic effects before operation and after 12-month,24-month treatment,VAS pain score,Oswestry disability index( ODI)were observed and analyzed for both groups. Results The operation time,hemorrhage volume in Dynesys group were significantly higher than those in traditional treatment group( P < 0. 05). The VAS,ODI score after 12-month,24-month treatment were significantly decreased in both groups,as compared with those before treatment( P < 0. 05),moreover,which in Dynesys group were much more significantly decreased,as compared with those in traditional treatment group( P < 0. 05). The therapeutic effects in Dynesys group were superior to those of traditional treatment group( P < 0. 05). The total effective rate in Dynesys group was higher than that in traditional treatment group,however,there was no significant difference between two groups( P < 0. 05). Conclusion The posterior dynamic stabilization system(Dynesys)is superior to traditional operation method in treatment of lumbar degenerative disease,with shorter operation time,less hemorrhage volume,more satisfactory postoperative effect,so which is worthy of clinical application.