Value Analysis Of Radionuclide Bone Imaging And MRI STIR Black Line Signalin Diagnosis And PKP Efficacy Prediction Of Osteoporotic Vertebral Compression Fracture

Objective:To explore the value and role of radionuclide bone imaging and MRI STIR black linear signal in the diagnosis of osteoporotic vertebral compression fracture(OVCF)and in the prediction of percutaneous Kyphoplasty(PKP).Methods:A retrospective analysis was made on 40 OVCF patients who were hospitalized in our hospital and received PKP operation from August 1,2017 to November 1,2020.All patients were examined by X-ray,QCT,MRIand radionuclide bone imaging after admission.According to the different signal manifestations on MRI STIR,the patients were divided into two groups:black linear signal group(group A)and non-black linear signal group(group B),including group A(n=12)and group B(n=28).The correlation between preoperative general data,VAS,ODI score,Cobb,MRI black linear signal and radionuclide bone imaging concentration morphology and characteristics were compared between the two groups.Results A:total of 56 fresh and old fracture vertebrae were involved in the two groups,of which 43 cases were diagnosed by MRI and 45 cases by bone imaging.42 cases were confirmed by clinical and imaging findings.Kappa test was used to diagnose the results of MRI and bone imaging indicating that the two diagnoses are highly consistent(Kappa>0.75).There was no significant difference in age,sex and bone mineral density between the two groups(P>0.05).The baseline data of the two groups were similar.The postoperative VAS score,ODI score and Cobb angle of the two groups were significantly improved compared with those before operation,but the postoperative pain relief of group A was worse than that of group B,and the difference was statistically significant(P<0.05).There was no significant difference in the improvement of Cobb angle between the two groups 3 days after operation.There was no significant correlation between the confluence shape and concentration of contrast medium on radionuclide bone imaging and the black linear signal on MRI STIR(P>0.05).Conclusion:There is a high consistency between bone imaging and MRI in the diagnosis of fresh osteoporotic vertebral compression fracture.The appearance ofMRI STIR black line signal can be used as a risk factor to predict the postoperative curative effect in patients with OVCF.Bone scintigraphy did not show obvious specificity in the diagnosis of OVCF patients with black linear signal of MRI STIR.