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  • Title: Comparison of radiofrequency kyphoplasty and balloon kyphoplasty in combination with posterior fixation for the treatment of vertebral fractures.
    Author: Bornemann R, Jansen TR, Otten LA, Sander K, Wirtz DC, Pflugmacher R.
    Journal: J Back Musculoskelet Rehabil; 2017; 30(3):591-596. PubMed ID: 28035907.
    Abstract:
    BACKGROUND: In case of complex vertebral fractures, posterior fixation is often required for correction of deformity and instability. Fixation is commonly supported by balloon kyphoplasty (BKP) anterior. A development of BKP is radiofrequency-targeted vertebral augmentation (RF-TVA), which leads to comparable results for augmentation and pain relief. OBJECTIVE: This prospective study evaluates the outcome of posterior fixation combined with RF-TVA or BKP, respectively. METHODS: VAS, ODI, kyphosis angle and vertebral height of 44 patients were evaluated preoperatively, 3 and 12 months postoperatively. RESULTS: Both treatments improved vertebral height and kyphosis angle. At 12 months, vertebral height restoration was still significantly better in the BKP group (p < 0.001) and the improvement of kyphosis angle was comparable between both groups (p = 0.71). VAS and ODI improvements were significantly better in the RF-TVA group (p < 0.001). 8% of BKP patients had cement extravasations, compared to 10.5% in the RF-TVA group (p = 1.0). CONCLUSIONS: Combining posterior fixation with RF-TVA leads to better results of VAS and ODI, whereas the vertebral height restoration was favorable for patients treated with BKP. Cement leakage was comparable between both groups. It was asymptomatic and within reported ranges. Limitations of this study are the patient number and different stabilization instrumentation.
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