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Table 2 Outcomes of the motion indexes during 4 different motion examinations

From: Joint motion of bipolar hemiarthroplasty in routine hip functional movements: a dynamic motion study

  Amount of Motion (degrees)
Total, mean (SD) At the Outer Bearing, mean (SD) At the Inner Bearing, mean (SD) O/I Ratio
Abduction-adduction 34.78 (9.64) 30.03 (9.40) 4.75 (4.02) 6.32
Flexion-extension 69.86 (12.49) 57.36 (14.41) 12.50 (12.25) 4.59
Simulative squat 50.18 (13.75) 43.99 (16.34) 6.19 (9.46) 7.11
Normal gait 39.39 (8.57) 17.64 (13.39) 21.74 (14.47) 0.81
  1. Abbreviation: O/I Ratio the ratio of outer/inner bearing motions