Impact of intravertebral cleft on adjacent vertebral fractures after percutaneous vertebral augmentation / 中国医学影像技术

ABSTRACT

Objective: To investigate the impact of intravertebral cleft on adjacent vertebral fracture (AVF) after percutaneous vertebral augmentation. Methods: Data of 172 patients with osteoporotic vertebral compression fracture (OVCF) who underwent percutaneous vertebral augmentation were retrospectively analyzed. The patients were divided into intravertebral cleft group (n=37) and control group (n=135) according to the presence or absence of intravertebral cleft before operation. The operative information and postoperative imaging characteristics were compared between 2 groups, and the impact of intravertebral cleft on AVF was analyzed. Results: The incidence of AVF after vertebral augmentation in intravertebral cleft group (54.55%, 24/44) was significantly higher than that in control group (23.21%, 39/168, χ2=16.39,P50% (75.00%) was significantly higher than in those ≤50% (42.86%, χ2=4.24, P=0.04), but there was no statistical difference of the incidence of AVF among different fracture locations nor components (χ2=2.13, 0.27, both P>0.05). Conclusion: OVCF patients with intravertebral cleft are at increased risk of recurrence AVF after percutaneous vertebral augmentation, especially those with higher anterior wall height decreased ratio, postoperative bone cement mass distribution and bone cement-bone surface fluid signs and being required close follow-up observation.