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Table 4 Anterior vertebral body height of two groups (%)

From: Minimally invasive pedicle screw fixation combined with percutaneous vertebroplasty for preventing secondary fracture after vertebroplasty

Group Preoperative Postoperative 1 month 2 months 3 months 6 months 1 year 2 years
1 49.8 ± 8.1 74.7 ± 7.0 63.6 ± 6.7 63.4 ± 6.7 63.4 ± 6.6 63.4 ± 6.6 63.4 ± 6.6 63.4 ± 6.6
2 49.7 ± 8.0 81.2 ± 6.6 79.7 ± 6.6 78.1 ± 6.6 77.9 ± 6.6 77.8 ± 6.5 77.8 ± 6.5 77.8 ± 6.5
  1. Values are expressed as the mean ± SD. There was significant difference (P < 0.005) after surgery between the two groups. The anterior height after surgery was significantly higher (P < 0.005) than that of before surgery in two groups. The anterior height immediately after surgery was significantly higher (P < 0.005) than that of 1 month, 2 months, 3 months, 6 months, 1 year, and 2 years in group 1.