Intravertebral clefts in XXXX of the spine: incidence, characteristics, and therapeutic efficacy.

@entity1 @entity174 @entity1513 @entity3814 @entity717
OBJECTIVE: To determine the pathogenesis and characteristics and to assess the long-term effectiveness of polymethylmethacry late (PMMA) vertebroplasty treatment in @entity1 with intravertebral cleft (IVC) in @entity3814 . METHODS: A retrospective analysis of radiological and clinical parameters was performed on 388 @entity1 who underwent percutaneous vertebroplasty or kyphoplasty to treat @entity3814 from January 2010 to October 2012. IVC sign was observed in the MRI of 47 @entity1 . Postoperative follow-ups were conducted for at least 2 years after surgery. RESULTS: IVC incidence was associated with older age and lower bone mineral density. Other baseline measurements, such as preoperative visual analogue scale and @entity717 Index (ODI), showed no significant difference between IVC and non-IVC @entity174 @entity1 . Vertebral height and kyphotic angle were corrected after percutaneous vertebroplasty or kyphoplasty with no significant difference in outcome between the two procedures. Restored vertebral height collapsed and the kyphotic angle became aggravated during the 2 years following surgery in @entity1 with IVC. Similarly, initial improvements in visual analogue scale and ODI decreased over time. Non-IVC @entity1 ' had a slight recurrence of compression and @entity1513 that began to normalize after 1 year. Visual analogue scale and ODI at 2 years' post-surgery was also significantly lower in non-IVC than IVC @entity1 . CONCLUSION: Polymethylmethacrylate vertebroplasty treatment of @entity3814 is initially effective for @entity1 with signs of IVC, but compression and @entity1513 gradually reoccur. Therefore, we strongly recommend strict observation and follow-up after vertebroplasty.
