Objective To compare the efficacy of transforaminal lumbar intervertebral fusion(TLIF)with improved Jaslow technique and traditional TLIF for treatment of mild degenerative lumbar spondylolisthesis(DLS).Methods The 95 patients with mild DLS were divided into traditional TLIF group(49 cases treated with traditional TLIF)and improved Jaslow group(46 cases treated with improved Jaslow technique TLIF),according to different surgical proce-dures.The surgical and imaging indicators were compared between two groups.Clinical efficacy was evaluated using pain VAS,JOA score,and ODI score.Results All patients were followed up for 12～46(21.13±11.80)months.①There was no statistically significant difference in incision length,intraoperative bleeding volume,and surgical time be-tween the two groups(P>0.05).②Spondylolisthesis degree:after 1 year of surgery,it was lower in both groups than before surgery(P<0.01).Lumbar lordosis angle:there was no statistical difference between the two groups at 1 year after surgery(P>0.05).The intervertebral space height:at postoperative 1 year,both groups were both higher than the preoperation(P<0.01),and the modified Jaslow group was higher than the traditional TLIF group(P<0.01).The settlement value and settlement rate of intervertebral fusion cage:at the last follow-up,the improved Jaslow group was less(lower)than the traditional TLIF group(P<0.05),and all surgical segments had bony fusion.③Pain VAS,JOA score and ODI score:at the last follow-up,the data of two groups were all better than before surgery(P<0.01);there was no statistically significant difference between the two groups(P>0.05).Conclusions Compared with tra-ditional TLIF,the improved Jaslow technique TLIF can more effectively maintain the height of the intervertebral space and delay the settlement of the intervertebral fusion cage for treatment of mild DLS.The clinical efficacy is satisfactory.
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