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Journal of Korean Neurosurgical Society 2010;48(6): 490-495.
doi: https://doi.org/10.3340/jkns.2010.48.6.490
The Role of Bone Cement Augmentation in the Treatment of Chronic Symptomatic Osteoporotic Compression Fracture.
Hyeun Sung Kim, Sung Hoon Kim, Chang Il Ju, Seok Won Kim, Sung Myung Lee, Ho Shin
1Department of Neurosurgery, College of Medicine, Chosun University, Gwangju, Korea. ns64902@hanmail.net
2Department of Neurosurgery, Heori Sarang Hospital, Daejeon, Korea.
3Department of Rehabilitation, Wonju College of Medicine, Younsei University, Wonju, Korea.
ABSTRACT
OBJECTIVE
Bone cement augmentation procedures such as percutaneous vertebroplasty and balloon kyphoplasty have been shown to be effective treatment for acute or subacute osteoporotic vertebral compression fractures. The purpose of this study was to determine the efficacy of bone cement augmentation procedures for long standing osteoporotic vertebral compression fracture with late vertebral collapse and persistent back pain.
METHODS
Among 278 single level osteoporotic vertebral compression fractures that were treated by vertebral augmentation procedures at our institute, 18 consecutive patients were included in this study. Study inclusion was limited to initially, minimal compression fractures, but showing a poor prognosis due to late vertebral collapse, intravertebral vacuum clefts and continuous back pain despite conservative treatment for more than one year. The subjects included three men and 15 women. The mean age was 70.7 with a range from 64 to 85 years of age. After postural reduction for two days, bone cement augmentation procedures following intraoperative pressure reduction were performed. Imaging and clinical findings, including the level of the vertebra involved, vertebral height restoration, injected cement volume, local kyphosis, clinical outcome and complications were analyzed.
RESULTS
The mean follow-up period after bone cement augmentation procedures was 14.3 months (range 12-27 months). The mean injected cement volume was 4.1 mL (range 2.4-5.9 mL). The unipedicular approach was possible in 15 patients. The mean pain score (visual analogue scale) prior to surgery was 7.1, which decreased to 3.1 at 7 days after the procedure. The pain relief was maintained at the final follow up. The kyphotic angle improved significantly from 21.2 +/- 4.9degrees before surgery to 10.4 +/- 3.8degrees after surgery. The fraction of vertebral height increased from 30% to 60% after bone cement augmentation, and the restored vertebral height was maintained at the final follow up. There were no serious complications related to cement leakage.
CONCLUSION
In the management of even long-standing osteoporotic vertebral compression fracture for over one year, bone cement augmentation procedures following postural reduction were considered safe and effective treatment in cases of non-healing evidence.
Key Words: Long standing; Compression fracture; Osteoporosis; Bone cement
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