Otto Bock 1C63 Triton Low Profile Instructions For Use Manual page 16

TF-fitting
Observe the alignment instructions for the chosen prosthetic knee joint.
Effective shoe heel height [mm]
5.1.2 Static alignment optimization
If necessary, the alignment recommendations (TF modular leg prostheses: 646F219*, TT modular
leg prostheses: 646F336*) may be requested from Ottobock.
Use the L.A.S.A.R. Posture for static alignment optimisation of the prosthesis, if available.
5.1.3 Dynamic alignment optimization
Adapt the prosthetic alignment in the frontal plane (ML) and in the sagittal plane (AP) by angle
adjustments and/or sliding adjustments, in order to ensure correct heel contact, easy roll-over,
and optimal shifting of weight onto the contralateral side. For transtibial amputees please make
sure there is physiological knee flexion during stance phase.
5.2 Adjustment and final assembly
Due to the high forces in the adapter section, it is indispensable to tighten the adjustment screws
of the tube adapter with a torque of 15 Nm (135 lb-in).
Use 710D1 Torque Wrench. Once you have attained the final setting for the prosthesis, use 636K13
Loctite® to secure the set screws.
5.3 Heel wedges
CAUTION
Risk of falling due to change of the knee dynamics when using heel wedges.
The use of heel wedges can facilitate stance phase flexion when bearing weight on the prosthesis.
Therefore, particular caution is advised during the dynamic alignment optimization – especially
when a knee joint without stance phase control is used.
In case the heel strike is too soft or the knee is in hyperextension during the mid-stance phase,
the heel can be stiffened by means of one of the two heel wedges delivered with each 1C63
prosthetic foot.
• "Soft" Heel Wedge (translucent)
• "Stiff" Heel Wedge (colour: black)
5.3.1 Heel wedge application
INFORMATION
Patients with a high activity level in MG 3 should initially test the foot without a heel wedge. For
patients with a high activity level in MG 4, Ottobock recommends the application of a heel wedge.
INFORMATION
The heel wedge design does not require any adhesive to apply it to the prosthetic foot.
16
5 – 15
10 – 20
Suitable footshell
Normal
Slim