Ottobock 28U24 WalkOn Reaction Instrucciones De Uso página 13

4) Have the patient sit on a chair without the shoe and with the orthosis, and position the foot at
a 90° angle to the lower leg.
INFORMATION: Apply the orthosis to the patient so that the ankle joint has sufficient
freedom of movement and does not impact the hard medial spring.
5) Determine the position of the ankle according to the "WalkOn® Reaction" lettering (see
fig. 2).
6) Trim the orthosis sole (see fig. 3) so that the mark on the shoe corresponds to the position on
the orthosis (see fig. 4).
7) Adapt the sole shape according to the removable insole. Note that the required exterior rota­
tion of the foot must be maintained (see fig. 3).
Adapting the orthosis:
1) Insert the orthosis in the shoe and cover it with an insole if required (see fig. 5).
2) Put on the orthosis together with the shoe (see fig. 6).
3) Measure the correct AP position of the knee joint (e.g. on the L.A.S.A.R Posture).
INFORMATION: The compromised knee rotation point is 15 mm posterior to the
weight line according to Nietert.
4) As needed: Wedges can be used to provide a comfortable base of support. For example, an
extrinsic forefoot wedge can be used to increase knee extension force (see fig. 10). An
extrinsic heel wedge can be used to reduce knee extension force (see fig. 11).
INFORMATION: Materials other than those supplied may also be used to build up the
outer sole if needed.
5) As needed: Sand the top edge and wings of the anterior stop and modify the padding
accordingly.
NOTICE! The functionality of the orthosis must not be impaired. Do not sand in the
area of the medial spring or the surfaces!
6) As needed: If the patient has a foot deformity, correct it with an insole or a custom moulded
foot orthotic.
INFORMATION: Included with the device is the supination correction strap (28Z10),
which, if needed, can be attached directly to the device to help control lateral move­
ment of the ankle.
7) Close the textile component at calf height (see fig. 6).
Final inspection:
► Conduct trial walking with the patient. Testing on inclines, ramps and stairs is mandatory.
Fine tune as required.
4.3 Application
NOTICE
Use of a worn or damaged product
Limited effectiveness
► Instruct the patient to inspect the product for proper functionality, wear and damage prior to
each use.
► Advise the patient that the product must not be used if the product or part of the product
exhibits signs of wear (e.g. cracks, deformation, poor fit) or damage.
1) Take the insole out of the shoe on the fitting side.
2) Open the calf band.
3) Slide the orthosis into the shoe.
4) Put on the orthosis together with the shoe.
5) Close the calf band.
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