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Table 1 Demographic data for the cam-FAI, DDH W/ cam, and DDH W/O cam groups

From: Comparison of improved range of motion between cam-type femoroacetabular impingement and borderline developmental dysplasia of the hip -evaluation by virtual osteochondroplasty using computer simulation-

  Cam-FAI (n = 15) DDH W/ cam (n = 11) DDH W/O cam (n = 12)
Sex (male / female) 11 / 4 1 / 10 1 / 11
Age (mean ± SD) 48.7 ± 12.5 49.9 ± 11.9 44.8 ± 15.1
BMI (mean ± SD) 23.5 ± 3.2 22.1 ± 2.5 20.4 ± 2.2
CE angle (mean ± SD) 32.3 ± 4.2 22.0 ± 1.5 21.7 ± 1.7
alpha angle (mean ± SD) 65.7 ± 7.6 63.6 ± 6.1 49.5 ± 3.6
Tönnis grade (0 / 1) 10 / 5 7 / 4 10 / 2
Crossover sign (positive/ negative) 6 / 9 2 / 9 1 / 11
  1. BMI body mass index, CE center-edge, SD standard deviation
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