Correlation Analysis Of Changes Of Spine-pelvic Sagittal Parameters In Patients With Lumbar Spondy Lolisthesis After Operation And Clinical Efficacy

Objectives The effect of postoperative sagittal plane parameters on clinical outcomes in patients with lumbar spondylolisthesis has not been uniformly recognized.Evaluate the effect of sagittal parameter changes on postoperative results and look for imaging evidence.Methods Patients who received posterior lumbar interbody fusion in the Tangshan Workers’ Hospital.From 2015.06 to 2017.01.30 cases with degenerative lumbar spondylolisthesis were included.At pre-and post-operation,the Spine pelvic parameters were measured.Sacral slope(SS),pelvic incidence(PI),pelvic tilt(PT)were researched.And slip distance(SD),lumbar lordosis(LL),disc height(DH)were explored.The relationship between sagittal parameters and ODI index and VAS score was analyzed by Pearson correlation.Results Followed up for 3 to 19(12.73±7.06)months.30 cases were followed up effectively.At the last follow-up,we found that VAS score and ODI index improved significantly after operation in my research(P<0.05).We found significant differences in the spinal pelvis parameters(except PI)before and after the operation(P<0.05).The mean VAS was 6.58±2.47 at preoperative and 2.93±1.76 were foud at the last follow-up(t=5.944,P=0.001).The mean ODI index was(45.40±16.98)at preoperative and 26.80±12.73 were found at the last follow-up,(t=5.057,P=0.0001).At the last follow-up,PT declined from(23.90±6.42)° to(17.38±4.98)°(t=4.935,P<0.001).And SS increased from(33.77±9.42)° to(39.16±10.68)°(t=-3.199,P=0.003).The preoperative LL was(47.67±14.59)and(55.07±12.92)° were found after operation(t=-5.790,P<0.001).SD was(18.11±6.38)mm at pre-peration.(4.57±3.55)mm were foud after surgery(t=17.932,P<0.001).DH was(7.87±3.94)mm at preoperation and was increased to(13.33±2.76)mm at postoperation(t=-10.576,P<0.001).Our research indicate that PI has no relationship to ODI index.Before operation,the parameters(SS,LL,DH)negatively correlated with ODI index and VAS score.PT and SD showed positive correlation with ODI index and VAS score.The improvement of ODI index and VAS score shows positive correlation with postoperative changes of PT,SS,LL,SD,and DH.Conclusions Changes of spine pelvic parameters in patients with degenerative lumbar spondylolisthesis affect postoperative clinical outcomes,and emphasis on improved spine pelvic parameters may contribute to better clinical outcomes.With the increasing awareness of the sagittal parameters of the spinal pelvis,our results show that the sagittal plane parameters of the spinal pelvis are closely related to spinal diseases,indicating that the analysis of the sagittal parameters of the spinal pelvis is beneficial.