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Procedure
Required tools and materials
•
743A11 plaster device, 743L20=230 L.A.S.A.R.-Line, waterproof marker, check socket, liner
3.6 Aligning the prosthesis
Objective
Carry out the alignment of the prosthesis according to the instructions for use of the prosthesis components used.
The alignment recommendation (TT modular leg prostheses: 646F336*) can be requested from Ottobock as
needed.
Optional: Use the 4R1 sliding adapter to determine the alignment positions.
Use the L.A.S.A.R. Posture for static alignment of the prosthesis, if available.
3.6.1 Attaching the socket connector
16 | Ottobock
Ask the patient to sit down. Position the residual limb in
90° flexion. The distal contact of the residual limb has to
be ensured in the prosthetic socket.
Mark the course of the socket brim:
•
There must be sufficient room for the femoral con
dyles during flexion. The medial and lateral socket
brim must not extend over the flexed knee joint so
as not to damage the sealing sleeve.
•
Leave a distance of about the width of a finger
between the thigh and the socket brim in the hollow
of the knee.
•
Allow the medial and lateral socket brim to fall
steeply in the posterior direction in order not to limit
the knee flexion and avoid the formation of bulges in
the hollow of the knee.
Process the socket brim according to the markings.
Two lines each are marked medially and laterally on the
liner. These lines make it possible to check the volume
even if the prosthetic socket is opaque.
The prosthetic socket is not worn:
•
Insert the liner into the socket. Mark one line on the
liner both medially and laterally on the course of the
socket brim.
The patient stands on the plaster device. Equal
load is placed on the prosthetic socket and con
tralateral side:
•
Mark one line on the liner both medially and laterally
on the course of the socket brim.
•
Mark the plumb line on the prosthetic socket from
the frontal and lateral direction with the L.A.S.A.R.-
Line.
Attach the 2R117=0 socket connector according to the
instructions for use.
TIP: If no PUR adhesive is available, two-component
epoxy adhesive can also be used.
Harmony System
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