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Table 2 The clinical assessment of new developed PAO and conventional PAO

From: Development of a novel customized cutting and rotating template for Bernese periacetabular osteotomy

Parameters New developed PAO Conventional PAO p value
Duration of operation (min) 102 ± 7 (92 to 110) 117 ± 19 (93 to 148) < 0.01
Bleeding volume (ml) 695 ± 119 (623 to 833) 545 ± 81 (415 to 710) 0.0617
Irradiation times (NO) 4 ± 1 (3 to 6) 7 ± 2 (5 to 10) < 0.01
Harris hip score
 Preoperative 66 ± 5 (61 to 77) 67 ± 5 (61 to 78) 0.4118
 Last follow-up 94 ± 2 (92 to 97) 91 ± 1 (90 to 94) < 0.01
 Improvement 27 ± 4 (19 to 34) 24 ± 5 (12 to 30) < 0.01
Visual analogue scale
 Preoperative 3.2 ± 0.6 (2.5 to 4.5) 3.0 ± 0.4 (2.6 to 3.6) 0.1586
 Last follow-up 1.0 ± 0.8 (0 to 2.6) 1.3 ± 0.9 (0 to 2.8) 0.2531
 Improvement 2.1 ± 1.0 (0.2 to 3.8) 1.7 ± 1.1 (0 to 2.9) < 0.01
  1. Values are expressed as mean ± standard deviation with range in parentheses