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Table 3 Comparisons to the literature

From: One‐level mini‐open pedicle subtraction osteotomy for treating spinal kyphosis in patients with ankylosing spondylitis

Author No./age(yr) Preop GK(°) Final correction(°) Final SVA (cm) Final PT(°) Operation time(min) Blood loss (ml)
Zhu(2012) [27] 31/36 73.7 39.9 7.7 N/A N/A 1740
Xu(2015) [28] 37/37 N/A 38.4 5.8 29.2 232 1240
Liu(2015) [20] 55/34 75.3 43.6 N/A N/A 381 2729
Hua(2017) [23] 12/39.5 75.2 38.7 10.8 44.5 327 1525
Qiao(2018) [24] 17/35.3 67.56 39.4 6.4 N/A N/A N/A
Qiao(2018) [24] 47/34.2 74.28 44.4 5.2 N/A N/A N/A
Xin(2019) [6] 339/34.8 55.8 44.6 5.2 N/A 253 537
Huang(2019) [26] 100/34.7 71.6 47.6 4.5 23.3 332 1821
Wang(2019) [5] 27/40.3 50.6 28.9 8.7 N/A 301 1452
Wang(2019) [5] 30/37 49.3 31.7 5.2 N/A 279 1150
Current study 25/39.5 70.2 46.1 4.9 23.1 263 840
  1. GK Global kyphosis, SVA Sagittal vertical axis, PT Pelvic tilt, N/A Not applicable