Analysis of influencing factors of bone cement dispersion distribution after percutaneous vertebroplasty for osteoporotic vertebral compression fracture
Objective To analyze the influencing factors of bone cement disp ersion distribution after percutaneous vertebroplasty(PVP)for osteoporotic vertebral compression fracture(OVCF).Methods The clinical and imaging data of 172 patients with OVCF who underwent PVP in the Affiliated Hospital of Guangdong Medical University from January 2020 to September 2022 were collected,the diffusion range of bone cement was determined according to the results of postoperative DR positive and lateral radiographs,and the patients were divided into poor dispersion group and excellent dispersion group.The bone mineral density,surgical approach,black line sign,Kummell disease,surgical timing,bone marrow edema morphology,fracture type and bone cement volume fraction of the two groups were statistically analyzed.The influencing factors of bone cement dispersion distribution were analyzed.Results The dispersion distribution of bone cement showed that there were 100 cases of poor dispersion and 72 cases of excellent dispersion.There were statistically significant differences in bone mineral density,surgical approach,proportion of Kummell disease,surgical timing and bone marrow edema morphology between the two groups(P<0.05);there were no significant differences in the proportion of black line sign,fracture type and bone cement volume fraction between the two groups(P>0.05).Multivariate Logistic regression analysis showed that surgical approach,Kummell disease,surgical timing and bone marrow edema morphology were the influencing factors of bone cement dispersion distribution(P<0.05),among them,surgical approach was a positive correlation factor,Kummell disease,surgical timing and bone marrow edema morphology were negative correlation factors.Conclusion Surgical approach,Kummell disease,surgical timing and bone marrow edema morphology are influencing factors of bone cement dispersion distribution.