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3.11 Adjusting the Reaction-module in a bilateral orthosis
When using multiple Reaction-modules in a bilateral orthosis, note the adjustment order. The stops and spring ten
sion of the Reaction-modules that face each other medially and laterally must be adjusted equally. The identical
adjustment of Reaction-modules 1 and 3 as well as 2 and 4 prevents deformation and damage to the orthosis.
Adjusting dorsiflexion and plantar flexion
17AD100
Carrying out the dynamic trial fitting:
•
Put the orthosis on the patient.
•
Check the sagittal alignment of the orthosis on the
patient using the L.A.S.A.R. Posture.
•
Set the desired pretension of the reaction-spring
using the spring bolt.
•
Have the patient walk while wearing the orthosis.
Take note of the knee extension at the end of the termin
al stance phase.
Readjust the springs if necessary.
Follow the steps described in "Installing the Reaction-
module" and "Reaction-module – static alignment".
The stops of the Reaction-modules are set accord
ing to the adjustment sequence. If a Reaction-mod
ule is not required, the corresponding instructions
can be ignored.
Prerequisite: The orthosis has been applied to the
patient.
Prerequisite: All Reaction-modules are mounted with
the spring dummy.
•
Adjust the stop of Reaction-module 1 (see page
26).
•
Adjust the stop of Reaction-module 2 until the
orthotic joint has no more anterior-posterior play.
•
Set the desired pretension of the Reaction-Spring
using the spring bolt.
•
Have the patient walk while wearing the orthosis.
•
If Reaction-modules 1 and 2 have been adjusted
and Reaction-module 3 is to follow: Loosen the
spring bolt of Reaction-module 1.
Procedure
27
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