Effect Of Bone Cement Distribution On Recurrent Fracture After PVP

Objective: To investigate the effect of the unilateral puncture(percutaneous vertebroplasty,PVP)on the recurrent fracture.Methods: 98 single-segment OVCF from December 2020 to November 2021 in the Sixth Affiliated Hospital of Xinjiang Medical University were 73.22 ± 6.69 years,with a minimum postoperative follow-up.Among these patients,19 were male and 79 were female.Patients were followed up at 3 days,March,12 months and the last time,and refracture,bone density value(T),pain visual analog scale(VAS)score,and Oswestry dysfunction index(ODI)were recorded to evaluate the treatment effect.The "+" section of the surgical vertebral cement on CT scan was divided into four regions.The left anterior margin of the vertebral body was area 1,the anterior margin of the right side of the vertebral body was area 2,the left posterior margin of the vertebral body was zone 3,the right posterior margin of the vertebral body was area 4,type I was zone 1 or 2,type II 1 + 2,type III 1 + 2 + 3,and type IV 1 + 2 + 3 +4.To determine the effect of cement distribution on recurrent fracture.Results: In 18 out of 98 patients undergoing single-stage percutaneous vertebroplasty,the incidence of refracture was 18.37%.Twelve patients with recurrent fractures were type I,1 type II,2type III,and 3 type IV.Five of the 91 patients with no recurrent fractures were type I,18 were type III,31 were type III,and 26 were type IV.The type of cement distribution was the influencing factor of vertebral refracture after vertebral augmentation in OVCF patients.The incidence of fracture in the type I cement distribution group was higher than the other distribution types,and there was a statistically significant difference(P <0.05).Conclusion: PVP is an effective treatment for OVCF,and the maximum proportion of cemented CT cross section of less than 1 / 4 may be a risk factor for vertebral refracture.