13) 1WR95 only: Apply plastic adhesive to the plug for the screw
connection and press it fully into the prosthetic foot.
14) Remove any remnants of the adhesive using a suitable solvent.
15) Allow the adhesive to cure.
5.2 Alignment
5.2.1 Bench Alignment
TT bench alignment
Bench alignment process
Required materials: 662M4 goniometer, 743S12 heel height
measuring apparatus, 743A80 50:50 gauge, alignment apparatus
(e.g. 743L200 L.A.S.A.R. Assembly or 743A200 PROS.A.
Assembly)
Perform the assembly and alignment of the prosthetic components
in the alignment apparatus according to the following specifica
tions:
Sagittal plane
Heel height: Effective heel height (shoe heel height - sole
thickness of forefoot) + 5 mm
Exterior foot rotation: approx. 5°
Anterior placement, middle of the prosthetic foot to the align
ment reference line: 30 mm
Connect the prosthetic foot and prosthetic socket using the
chosen adapters. The instructions for use of the adapters
must be observed.
Determine the centre of the prosthetic socket with the 50:50
gauge. Align the prosthetic socket centrally to the alignment
reference line.
Socket flexion: Individual residual limb flexion + 5°
Frontal plane
12
Bench alignment process
Alignment reference line of prosthetic foot: between big toe
and second toe
Alignment reference line of prosthetic socket: along the lat
eral patella edge
Observe the abduction or adduction position.
TF bench alignment
► Observe the information in the prosthetic knee joint instructions
for use.
5.2.2 Static Alignment
•
Ottobock recommends checking the alignment of the prosthesis
using the L.A.S.A.R. Posture and adapting it as needed.
•
If necessary, the alignment recommendations (TF modular leg
prostheses: 646F219*, TT modular leg prostheses: 646F336*)
may be requested from Ottobock.
5.2.3 Dynamic Trial Fitting
•
Adapt the alignment of the prosthesis in the frontal plane and the
sagittal plane (e.g. by making angle or slide adjustments) to
ensure an optimum gait pattern.
•
Remove the adapter cover from the prosthetic foot after comple
tion of the dynamic trial fitting and gait training exercises.
5.3 Optional: Installing the foam cover
The foam cover sits between the prosthetic socket and prosthetic foot.
It is cut longer in order to compensate for the movements of the pros
thetic foot and prosthetic knee joint. During flexion of the prosthetic
knee joint, the foam cover undergoes posterior compression and
anterior elongation. The foam cover should be stretched as little as
possible in order to increase its service life. There is a connecting ele
ment (such as a connection plate, connection cap or connection cov
er) on the prosthetic foot.