Clinical Effect Of Two Kinds Of Interbody Fusion For Lumbar Spondylolisthesis

Objective: To compare the clinical effect of interbody fusion and interbody fusion cage in the treatment of lumbar spondylolisthesisMethods: Analysis of clinical data of spinal surgery in our hospital from October 2012 to October 2013 were 60 cases of lumbar spondylolisthesis patients, in which 30 cases were treated with pedicle screw internal fixation and interbody simple autogenous bone graft bone fusion(group A), 30 cases were treated with pedicle screw internal fixation and interbody fusion device (cage) fusion (group B). Patients in group A were followed up for 12 to 24 months. The B group was 15 to 22 months. There were no significant differences in the age, sex, duration of disease, the degree of slippage, and the degree of the two groups. There were no significant differences (P>0.05). Were compared between the two groups in operative time, bleeding volume, bone graft fusion rate, convergence time, height of intervertebral disc, intervertebral foramen height, operation after 1 month of spondylolisthesis reduction rate, end up loss of reduction rate, clinical treatment effects(JOA score) and the two groups at the end of follow‐up rate of breakage. Between the two groups parameters, measurement data to ( X ±S) said groups were compared using t test; count data usingχ2 test, P < 0.05 was statistically difference.Result:Operation time and intraoperative blood loss(178.8 + 17.5min, 450.2 + 14.4ml) were significantly higher in group B than in group A (139.3 + 12.6min, 316.5 + 16.5ml); the fusion time(11.2 + 1 months) in group A was longer than thatin group B(8.4 + 0.9); End up a group of vertebral clearance and intervertebral foramen height(7.9 + 0.8mm, 12.3 + 1.2mm) was significantly lower than that in group B of intervertebral space and intervertebral foramen height(10.0 + 1.5mm, 14.9 + 1.4); at the end of the follow‐up group a reset loss rate of 11.5 + 2.1%, group B 6.7 + 1.2%; at the end of the follow‐up group a broken nail rate was 26.7%. In group B, the breakage rate of 6.7%. There were statistically significant differences in the above two groups of parameters. The JOA score of 89.3 and after operation at the end of follow‐up in group A, bone graft fusion rate was 90%, B group was 93.3%; postoperative 1 month a group of intervertebral space and intervertebral foramen height(10.9 + 1.0mm, 14.9 + 1.2mm), group B intervertebral foraminal height(11.1 + 1.2mm, 15.1 + 1.6mm); postoperative 1 month of spondylolisthesis reduction rate in group a 94.5 + 10.2%, group B + 12.8%; preoperative group A was 16.3 + 0.9 points, group B was 16.5 + 1.0, postoperative group a JOA score 22.8 + 1.7 points, group B was 23.5 + 1.3 points, two groups of clinical curative effect difference was not statistically significant.Conclusion : The treatment effect and bone graft fusion rate of lumbar spondylolisthesis treated with Cage bone graft fusion were similar to that of bone graft, but the fusion time of cage group was shorter, and the reduction rate of reduction, the maintenance of intervertebral space and the height of intervertebral foramen were superior to that of bone graft.