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  • Title: Morphological changes of vertebral compression fracture with intra-vertebral cleft treated with percutaneous vertebroplasty.
    Author: Park SM, Park JW, Kim H, Kim HJ, Yeom JS, Lee CK, Chang BS.
    Journal: J Orthop Sci; 2018 Mar; 23(2):237-247. PubMed ID: 29174421.
    Abstract:
    BACKGROUND: Vertebroplasty represents an established treatment option for osteoporotic vertebral compression fracture (OVCF), but its radiographic and clinical outcomes have not been clearly described in patients with intra-vertebral cleft (IVC). The aim of this study was to assess vertebral height restoration, recollapse and change of back pain in OVCF patients with or without IVC. METHODS: The records of 108 patients with IVC (group I) and 233 patients without IVC (group II) were included in our analysis between March 2001 and February 2014. The heights of the anterior, middle, and posterior columns, as well as the wedge angle (WA) of the fractured vertebral body were measured. For each vertebral column, the mean height of the superior and inferior vertebral body served as reference. Pre-operative, postoperative, and final compression rates (CR), as well as restoration and recollapse rates were calculated for each column. Subjective back pain was assessed as the numeric rating scale (NRS) score. RESULTS: The overall incidence of IVC in OVCF patients who underwent vertebroplasty was 20.8% (127/611 patients). Group I showed significantly higher CR over the entire follow-up period, with the exception of CR for the anterior column at final follow-up, and CR for the posterior column throughout the follow-up. The mean restoration rates at the anterior and middle column immediately after vertebroplasty were also significantly larger in group I. Recollapse rate in all columns was similar for groups I and II. The mean wedge angle was significantly larger in group I over the entire follow-up period. The groups did not differ in terms of NRS score at final follow-up. CONCLUSIONS: Vertebroplasty restores vertebral body heights and WA more effectively in OVCF patients with IVC, and provides satisfactory radiographic and clinical outcomes regardless of the presence of IVC.
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