Otto Bock Helix3D 7E10 Instructions For Use Manual page 39

The alignment step order corresponds to the numbers in the alignment scheme.
First make the bench alignment of the prosthesis with fully extended hip joint (see page 13) using an alignment
tool such as 743L200 L.A.S.A.R. Assembly. Please proceed as follows:
1
Position the middle of the foot approx. 30 mm anterior to the alignment reference line. This applies to all
recommended prosthetic feet, independently of alignment recommendations in previous instruc-
tions for use!
2
Add + 5 mm to the required shoe heel height and set correct outward rotation of the foot.
3
Clamp the knee joint with the mounted tube adapter into the alignment tool. Place the alignment reference
point (=knee axis) approx. 0 – 5 mm anterior to the alignment reference line. Consider the knee-floor distance
and outward rotation of the knee (approx. 5° are provided for by the adapter insert clamp in the L.A.S.A.R.
Assembly). Recommended positioning of the alignment reference point: 20 mm above the contralateral medial
tibial plateau. Connect foot and modular knee joint using a tube adapter. To do so, tilt the joint in the correct
position and set the required tube length.
4
The Helix hip joint and the knee joint are connected by means of a tube clamp adapter and a tube. The ap­
3D
propriate clamp adapter can be selected according to the 4x189=D/GB Selection Disk for the Helix
Joint System.
NOTICE
Damage caused by neglected cleaning/deburring. Prior to final assembly (i.e. prior to inserting the tube
adapter into the tube clamp adapter), the inside of the tube clamp adapter and the outside of the tube adapter
must be cleaned with 634A3 (Acetone)!
Prior to assembly, make sure that the cut tube is completely free of burrs.
5
Readjust the clamp adapters to set the determined pelvic socket reference line 35 mm anterior and parallel
to the alignment reference line. Pay attention to that the hip joint remains in the maximal extension position. In
the frontal plane, the alignment reference line should run through the middle of the two attachment screws of
the lamination plate.
6
In the transversal and frontal plane, make sure that the upper posterior hip joint axis is parallel to the knee
joint axis.
For use of the C­Leg: Carry out the basic settings on the C­Leg without the patient (zeroing, setting maximum
load and stance phase damping to maximum values; please also see the 647G268 Instructions for Use). These
are only safety settings for the initial standing trials and the first steps to the L.A.S.A.R. Posture with the patient.
For use of the Genium: The Genium should also be locked for the first steps to the L.A.S.A.R. Posture and dur­
ing the first joint adjustments. The prosthetist should accomplish this by switching to 'Static' (so-called static
alignment measurement) under the 'Alignment' tab. The joint is then locked.
Helix
Hip
3D
Ottobock | 39