40
9.2 Fine Adjusting the Range of Motion
Use the adjusting screw unit (4; fig. 17) of the system joint to fine adjust the range of motion up to 10°. To do
so, screw in or unscrew the adjusting screw unit in the system joint. Note that no more than 10° fine adjust-
ment is allowed. The plunger of the adjusting screw unit should not lose contact with the system stirrup in the
entire range of motion as otherwise noises will occur.
9.3 Adjustable Range of Motion
The maximum range of motion in dorsiflexion and plantar flexion can
be adjusted by filing the system stirrup having a system joint with such
a system stirrup (fig. 21 and 22). If you file the system stirrup down to
the circle, the system ankle joint becomes free moving in dorsiflexion or
plantar flexion.
If you do not need the converting options (see paragraph 10), you can
completely file off the nose along the vertical line (fig. 24 and 25).
9.4 Reading the Joint Angles
There are markings (fig. 23) on all system joints and system stirrups
which indicate the angle of the system components to each other. This
allows you to check the individual normal posture (the orthosis' basic
alignment), record the joint angle and compare later deviations.
The distances between the degree markings for each system width can
be seen in the following table.
Degree Marking
System Width
10mm
12mm
14mm
16mm
20mm
Degree
5°
5°
2°
2°
2°
10°
4°
6°
8°
2°
fig. 21
10°
4° 6°
8°
2°
fig. 22
fig. 23
