Alignment Instructions - Ossur PRO-FLEX XC Gebrauchsanweisung

ALIGNMENT INSTRUCTIONS

Bench Alignment (Fig. 3)
Alignment Goal
Alignment reference line (B) should:
– pass through midpoint of socket at either the patellar tendon level
or at the ischial tuberosity level (D).
– fall at the 1/3 mark on the inside of the foot cover.
Note: Prioritize knee alignment over foot alignment if there is
a mismatch.
Alignment Instructions
1. Position the foot so that the alignment reference line (B) falls at the
1/3 mark on the inside of the foot cover (with the foot cover and shoe
on). Consider the external rotation of the foot.
2. Use the applicable adapters to connect either the socket or the knee
to the foot and establish the correct knee center height.
3. If using a prosthetic knee: Position knee according to knee alignment
instructions
4. On the lateral side of the socket, make a first mark (alignment
reference point) at the midpoint of the socket at either patellar tendon
level or the ischial tuberosity level (D). Make a second mark at the
midpoint of the socket distally (E). Draw a line through both marks.
5. Position the socket so the alignment reference line (B) goes through
the alignment reference point (D).
6. Set the correct socket angles for flexion/extension and abduction/
adduction.
7. If using a prosthetic knee: Use the applicable adapters to connect the
socket to the prosthesis.
Static Alignment
– Make sure the user stands with equal weight on both legs.
– Check for correct prosthesis length.
– Check internal / external rotation.
– Check for correct load on toe and heel.
Dynamic Alignment
Ensure the user is familiar with the functioning of the device.
The heel to toe action can be influenced by:
– Heel Stiffness.
– Anterior-Posterior positioning of device.
– Dorsi-Plantarflexion.
– Shoe characteristics.
Consider the following actions if needed:
Symptoms
– Device comes to flat position too early (patient feels he/she is
sinking into a hole)
– Climbing over the toe requires extra energy
– Toe feels too stiff
– Knee hyperextends
Action
– Check wedge usage guidelines (if applicable)
– Shift socket anterior (or device posterior)
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