Static Alignment Optimisation - Otto Bock C-Leg 3C98-3 Instructions For Use Manual

Preparing the product for use
INFORMATION
If a protective cover is subsequently installed, the available distance between the electronics and socket without
the protective cover has to be at least 10 mm. Installing the protective cover reduces this distance by 5 mm.

7.1.7 Static alignment optimisation

The static alignment can be considerably improved with the help of the L.A.S.A.R. Posture (743L100=*) or 3D
L.A.S.A.R. Posture (743L500). In order to achieve adequate safety while also making it easy to initiate the swing
phase, please proceed with the alignment as described in the following sections.
Note the different distances from the load line to the alignment reference point (= knee axis)
Alignment apparatus
743L100=* L.A.S.A.R Posture
743L500 3D L.A.S.A.R. Posture (3D mode)
743L100 L.A.S.A.R. Posture
30
Distance from load line to alignment reference point
30 mm
20 mm
To determine the load line, have the patient wear footwear
(1B1-2 Meridium prosthetic foot without footwear) while standing
on the force measurement plate with the side being treated with
the prosthesis and on the height compensation plate with the
other leg.
Sufficient weight should be placed on the prosthesis side
(> 35 per cent of the body weight). Note the weight display on
the L.A.S.A.R. Posture.
Optimise the alignment by changing the plantar flexion. Only
make adjustments to the distal and proximal set screws of the
socket adapter on the prosthetic foot so that the load line (laser
line) runs approx. 30 mm in front of the alignment reference
point (= knee axis) of the knee joint.
C-Leg 3C98-3/3C88-3