Fixation System In The Treatment Of Degenerative Lumbar Spinal Stenosis

Objective To Compare the the clinical efficacy between lumbar posterior lumb ar interbody fusion PLIF and dynamic interspinous fixation system of Coflex for t-he treatment of lumbar spinal canal stenosis.Methods Retrospective study in our hospital from 2009 July-2013 year in Decemb er admitted 56 patients with lumbar spinal stenosis.All single segmental spinal sten osis.Among 36 male patients,20 female patients;aged 61 years-75 years old,average 68 years old.Preoperative history averaged 5-70 months.A group using dynamic inte rspinous Coflex fixation system;B group was used to remove spinal posterior struct ure to implement the decompression and interbody fusion in the traditional PLIF o peration.Results A group and B group in the operation time, bleeding volume,postoperative bed time,intraoperative bleeding rate and bleeding amount comparison had statistic al significance(P<0.05).ODI、VAS、JOA score in the two groups had statistical sig nificance in comparison(P<0.05).Th-e comparison between the two groups had no s tatistical significance(P>0.05);The activity of the two groups before operation in the operation section and the adjacent superior segment(ROM) had no significant diffe rence(P>0.05),And after operation the comparison between the two groups had stati stical significance(P<0.05).For within group comparison,Coflex group before and af ter the operation in the operation section and the adjacent segments were not signi ficantly changed,and without significant difference(P>0.05).Conclusion Dynamic interspinous fixation system compared with the traditional PLI F method for Coflex,Is a minimally invasive surgical treatment of lumbarspinal can al stenosis with the ideal,is worth the clinical promotion and application.