Effect comparison of unilateral and bilateral internal fixation combined with nucleus pulposus removal of intervertebral fusion operation treating lumbar disc herniation

Objective To compare the effect of unilateral and bilateral internal fixation combined with nucleus pulposus removal of intervertebral fusion operation treating lumbar disc herniation. Methods 49 cases with single gap lumbar disc herniation treated with nucleus pulposus removal of intervertebral fusion operation from January 2010 to December2012 in our hospital were retrospectively analyzed. Based the fixed way,patients were divided into unilateral fixation group and bilateral fixation group.The surgery time,intraoperative bleeding amount,hospital stay,hospital expense,VAS score of pain,Oswestry disability index(ODI) score,fusion rate and incidence rate of complication between two groups was compared respectively. Results Before operation,there was no statistical difference of VAS,ODI score between two groups(P0.05),and VAS,ODI score of two groups was significantly reduced respectively at the last follow-up(P0.05),but there was no statistical difference between two groups(P0.05).The surgery time in unilateral fixation group was obviously shorter than that of bilateral fixation group,intraoperative bleeding amount in unilateral fixation group was obviously less than that of bilateral fixation group,hospital expense in unilateral fixation group was obviously lower than that of bilateral fixation group(P0.05).There was no statistical difference of fusion rate and incidence rate of complication between two groups(P0.05). Conclusion The curative efficacy of unilateral and bilateral internal fixation intervertebral fusion for single gap lumbar disc herniation is almost the same,but unilateral internal fixation has shorter operation time,less intraoperative bleeding amount and lower hospital expense.