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Fluid sign in the treated bodies after percutaneous vertebroplasty

  • Interventional Neuroradiology
  • Published:
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Abstract

Introduction

The aims of this study are to describe non-healing in the treated vertebral body after percutaneous vertebroplasty and analyze the influence of vacuum cleft, location, and severity of collapse on the development of nonunion cement.

Materials and methods

Of 208 patients (266 treated vertebral bodies) who were treated with percutaneous vertebroplasty from September 2002 to May 2006, 23 patients (41 treated levels) with residual or recurrent pain underwent follow-up magnetic resonance imaging (MRI) study. Retrospective chart review with analysis of preoperative and postoperative MRIs were performed in these 23 patients.

Results

In the 41 treated vertebral bodies, 22 of 41 bodies had vacuum cleft found in the preoperative MRI study. Eight of the 22 treated vertebral bodies with preoperative vacuum clefts were found to have fluid between the interface of cement and the residual bone in the collapsed vertebral bodies on follow-up MRI. The adjacent discs of these treated vertebral bodies were upward/downward displaced. The endplate of the adjacent vertebral body exhibited fibrotic change. Treated bodies with vacuum clefts and level A location (T9, T11, T12, and L1) had higher probability of developing nonunion of the cement with statistical significance. The probability of nonunion cement in severe collapsed bodies might be higher than that of union cement in mild collapsed ones, but was not statistically significant.

Conclusions

Fluid sign in the treated body represents unhealed bone-cement interface. The location of the treated vertebral body and existence of vacuum cleft in the treated bodies may be important factors influencing the nonunion of cement.

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Conflict of interest statement

We declare that we have no conflict of interest.

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Authors and Affiliations

  1. Department of Radiology, China Medical University Hospital, No. 2, Yuh-Der Road, Taichung, 40447, Taiwan

    Chao-Chun Lin

  2. Department of Biomedical Imaging and Radiological Science, College of Health Care, China Medical University, Taichung, Taiwan

    Chao-Chun Lin

  3. Department of Medical Imaging, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan

    Chao-Chun Lin & Pao-Sheng Yen

  4. Department of Public Health, Tzu Chi University, Hualien, Taiwan

    Shu-Hui Wen

Authors
  1. Chao-Chun Lin
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  2. Pao-Sheng Yen
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  3. Shu-Hui Wen
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Correspondence to Chao-Chun Lin.

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Lin, CC., Yen, PS. & Wen, SH. Fluid sign in the treated bodies after percutaneous vertebroplasty. Neuroradiology 50, 955–961 (2008). https://doi.org/10.1007/s00234-008-0430-6

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  • DOI: https://doi.org/10.1007/s00234-008-0430-6

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