| 摘要 |
Device for measuring the internal rotation of a hip joint, whereby the following steps are performed: a) Positioning a person to be examined (1) on the seating surface (8) of a chair-like positioning aid (5) in a sitting position; b) Fixating at least one of the upper thighs to be examined (3) of the person (1) on the seating surface (8) against translational motions, so that a rotation of the upper thigh (3) around its longitudinal axis is still possible; c) Moving the corresponding lower thigh (4) across the sagittal plane (20) by using a force K of a constant value Z acting on the lower thigh (4), so that the distal end of the lower thigh (4) is deviated from the sagittal plane; and d) Measuring the angle α between the sagittal plane (20) and the longitudinal axis of the lower thigh (4). |
