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3. Position the knee so that the alignment reference line passes through
midtube (A)
4. On the lateral side of the socket, make a first mark at the midpoint of
the socket at 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
first mark at the midpoint of the socket at the ischial tuberosity level
(D).
6. Adjust the socket flexion to 5° in addition to the existing position
(i. e., hip flexion contracture) and set the height of the full prosthesis.
7. Use the applicable adapters to connect the knee to the socket.
Warning: After adjustments, all screws must be secured with a medium
strength threadlocker and tightened with the correct torque.
Caution: Adapters used on the distal connection must be cut straight and
inserted down to the end stop of the device's tube receiver. No spacer
should be used (Fig. 3).
Tighten the screws with the following torque:
• Central Screw (Fig. 1: I, J, or K): 35 Nm
• Tube Clamp Screw (Fig. 4: A): 16 Nm
Static Alignment
– Make sure the patient 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 patient is familiar with the functioning of the device.
Ensure the patient can activate and deactivate the geometric lock.
Stance phase stability (Fig. 5 and 6)
Stance phase stability can be adjusted by shifting the knee relative to the
socket or by installing the supplied Wedge (not mounted on the device
from the factory) to change axle geometry according to the following:
To increase stance phase stability:
• Shift the knee backward relative to the socket (5A) or
• Remove the supplied Wedge (6B).
To allow for a more dynamic gait:
• Shift the knee forward relative to the socket (5B) or
• Install the supplied Wedge (6B).
Fully flex the knee to reveal the location for installing or removing the
Wedge (6B). When fixing the Wedge to the device, apply medium
strength threadlocker to the Wedge Fixation Screws (6A) and then tighten
them by hand into the revealed holes of the flexed knee (Fig. 6).
For IKF adapter only: Stance flexion adjustment
The back bumper (Fig. 1: H) can be changed to increase or decrease
stance flexion:
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