Ann Rehabil Med.  2011 Dec;35(6):844-851. 10.5535/arm.2011.35.6.844.

Predictive Risk Factors for Refracture after Percutaneous Vertebroplasty

Affiliations
  • 1Department of Rehabilitation Medicine, Sun General Hospital, Daejeon 301-725, Korea. sky20525@naver.com
  • 2Department of Neurosurgery, Sun General Hospital, Daejeon 301-725, Korea.
  • 3Kangwon National University School of Medicine and Hospital, Regional Cardiocerebrovascular Center, Chuncheon 200-722, Korea.

Abstract


OBJECTIVE
To identify risk factors for developing a vertebral refracture after percutaneous vertebroplasty. METHOD: A retrospective analysis of 60 patients who had undergone percutaneous vertebroplasty between January 2008 and April 2010 was conducted. All patients were observed for a 1 year follow-up period, and fracture was defined when it was both clinically reported and radiographically confirmed. Twenty-seven patients with a refractured vertebra and 33 patients without a refracture were included. Of the 60 patients, 20 presented with a refracture from a cemented vertebra, whereas the remaining 40 patients did not. Clinical, imaging and procedure-related factors for each group were analyzed by the Fisher's exact, chi-square, and the Mann-Whitney U-tests.
RESULTS
Local kyphotic angle and sagittal index were significant as a result of researching various risk factors related to vertebral refracture (p<0.001, p<0.001, respectively) and refracture from a cemented vertebra itself (p=0.004, p<0.001, respectively). Other factors were not significant.
CONCLUSION
Patients who had a high preoperative local kyphotic angle and a high sagittal index required a close follow-up and attention.

Keyword

Risk factor; Refracture; Percutaneous vertebroplasty; Local kyphotic angle; Sagittal index

MeSH Terms

Follow-Up Studies
Humans
Retrospective Studies
Risk Factors
Spine
Vertebroplasty
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