TUR Isoforce - Knee Internal-External Rotation

5.2.1 User Manual Isoforce
REV 5 01st July 2014 page 43 von 77
TUR Therapietechnik GmbH | Grubenstr. 20 | 18055 Rostock | Germany
Set up & positioning
 Put the mechanical stops to “B” blue and “B” red.
 Collect the Knee attachment.
 Attach Knee Adapter to the dynamometer by sliding it in the input arm from the top, short side.
The horizontal part of the adapter should face towards the chair. Tighten it firmly by turning the
knob placed in the input arm clock wise.
 Adjust the chair and the dynamometer in accordance to the quick reference above.
 Ask the subject to lie on the chair.
 Attach the thigh straps. Do not attach it too firmly, because the test results can be negatively
affected.
 Set the axis of the joint rotation. The axis is through the lateral femoral condyle on a sagittal
plane, right opposite to the black dot on the input arm of the dynamometer. To succeed the
alignment you might need to make alterations to the positions of the chair and the
dynamometer.
 Place the tibia of the subject to the centre of the knee pad. You might need to bring the chair
closer to the dynamometer. Adjust the pad to be at the top of the foot. Secure the pad at this
position, proximal to medial malleoli, using the strap.
 Check the axis of rotation by asking your subject to fully extend and flex the knee.
Opposite Side
 Unstrap patient's knee from attachment.
 While the patients still lays on the chair, slide the chair away from the dynamometer.
 Remove the knee attachment from the dynamometer input arm and put it back turning it
around.
 Adjust the chair and the dynamometer in accordance to the quick reference above.
 Follow the steps 6 -10 as described above.
3.3.2 Knee Internal-External Rotation
Rotation Axis: Through the center of the calcaneus
Anatomical Zero: Straight leg in neutral position
Range of Motion: The ROM is between 30-50 degrees internal rotation and 20-40 degrees external
rotation