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Five double-blind trials (DBTs) on PVP and sham surgery. × indicates that PVP could not be shown to be useful. Δ indicates that PVP was useful in some cases. BMD, bone mineral density; FX duration, duration of procedure from fracture; Early VP, percentage of all patients who underwent vertebroplasty within 3 weeks; Inpatients, percentage of patients who required hospitalization; PMMA, polymethyl methacrylate; NR, not reported.
