Analysis Of Sagittal Balance And Pathological Location Of Isthmic Fissure And Degenerative Lumbar Spondylolisthesis

Objective:To analyze the role of spinal-pelvic sagittal balance in degenerative spondylolisthesis and adult isthmic spondylolisthesis in the affected areaMethods:A total of 183 patients admitted to the Huangdao branch of the Affiliated Hospital of Qingdao University from May 2012 to February 2015 were retrospectively analyzed.All of them had complete imaging data,including 92 patients with degenerative spondylolisthesis(degeneration group).There were 68 cases of lesions in L4,24 cases of L5 in the lesions,46 males and 46 females,with an average age of 49.5±8.7 years,91 cases of isthmic spondylolisthesis(ischemic group),and 27 cases of lesions in L4 area.There were 54 cases of lesions in L5,42 males and 49 females with an average age of 44.5±10.7 years.There were no significant differences in ODI and JOA scores and body mass index(BMI)between the two groups.Separate and analyze the location of the disease,Vertebra isthmus width(VIW),intervertebral articular surface and sagittal angle(ISA),lumbar lordosis(LL),Sacraral slope(SS),sagittal vertical axis(SVA),pelvic incidence(PI)pelvic tilt(PT),lumbar slip angle(lumbar slip)Angle,SLA)Slip distance(SD)and slip rate(slip%,SP)Sagittal balance(SB)and other t-tests compare the differences between the two sets of parameters.The t-tests were then grouped for different disease sites to compare the differences between the two groups of parameters.Results:The width of the isthmus of the isthmus(8.425±0.468o)and the balance of the sagittal plane(1.308±0.448o)were smaller than the width of the vertebral isthmus of the degenerative group(9.105±0.412o)and the balance of the sagittal plane(3.010±1.283o).P<0.05),and the intervertebral articular surface and sagittal plane angle of the isthmus group(45.866±5.372o),lumbar lordosis angle(49.214±9.418o),lumbar spondylolisthesis angle(110,000±3.663 o)slip distance(2.738±0.516 ?)And the slip index(0.302±0.319%)was greater than the intervertebral articular surface and sagittal plane angle(36.338±4.841o),lumbar lordosis angle(30.670±4.918o),lumbar spondylolisthesis(5.145±2.217o)slip distance(2.064±0.544 ?)and slip index(0.235±0.037%)(P<0.05 or P<0.01=;pelvic parameters PI of the two groups(52.757±8.067° in the isthmus group,53.917±6.183° in the degenerative group),PT(There were no significant differences in the isthmus fissure group(23.770±6.619 °,degenerative group 24.665±9.315°),SS(the isthmus group 38.562±8.112 °,degenerative group 39.400±8.856°)(P>0.05).The difference in prevalence between sexual slip and degenerative spondylolisthesis was statistically significant(P=0.00);Conclusion:Due to different etiology,isthmic spondylolisthesis has a greater degree of slippage than degenerative spondylolisthesis,but the pelvic morphology and overall balance of the trunk are similar.Moreover,patients with isthmic spondylolisthesis have a good L5;degenerative spondylolisthesis occurs in L4;vertebral isthmus dysplasia or morphological changes(slim)may be an important factor in the pathogenesis of schizomatic lumbar spondylolisthesis;intervertebral articular surface and sagittal plane The smaller angle and the decrease of lumbar lordosis angle play a role in the formation of degenerative lumbar spondylolisthesis.