ABSTRACT
OBJECTIVES: New adjacent spinal compression fractures occur not only in patients with osteoporotic spinal compression fractures after vertebroplasty but also in untreated old spinal compression fractures. The objective was to analyze and compare the characteristics in a group who had untreated old osteoporotic spinal compression fractures with those who had adjacent spinal compression fractures, which occurred after a vertebroplasty. MATERIALS & METHODS: From April 2006 to April 2009, 103 patients who had undergone vertebroplasty were evaluated. Eighteen patients (22 cases) who had untreated old osteoporotic spinal compression fractures were in group I, and 12 patients (13 cases) who had adjacent spinal compression fractures, which occurred after a vertebroplasty were in group II. In each group, we measured age and gender, body mass index (BMI), lumbar bone marrow density (BMD), sagittal index, and compression rate at the initial fracture site.