Required Components; Device Selection; Alignment Instructions - Ossur POWER KNEE PKA01 Gebrauchsanweisung

REQUIRED COMPONENTS

The device is delivered with a power supply and a Power Knee™ Battery.
Össur Logic App
For the initial fitting, the healthcare professional must use the Össur Logic app. It is available on Apple App Store.
See Össur Logic on the App Store for mobile device compatibility.
The patient can use the Össur Logic app to connect to the device and access some functions.

DEVICE SELECTION

See Össur catalog for a list of recommended components.
Use Össur titanium adapters to achieve weatherproof performance.
Note: Adapter installation and set-screw tightening shall be performed according to instructions provided in their
respective accompanying documents.

ALIGNMENT INSTRUCTIONS

Bench Alignment (Fig. 3)
Alignment Goal
Alignment reference line (B) should:
– pass through midpoint of socket at the ischial tuberosity level (D)
– pass 0-5 mm posterior to knee axis (A)
– 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 the knee to the foot and establish the correct knee center height.
3. Position the knee so that the alignment reference line passes 0-5 mm posterior to knee axis (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.
Static Alignment
Turn the device on.
– 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
1. Keep device powered on. Ensure the patient is familiar with how the device functions.
2. Tell the patient to walk between parallel bars with usual gait. This lets the patient get used to the behavior of the
device.
3. Adjust dynamic alignment as required. Make sure that the motion in swing and stance phases stays in the line
of progression. Make sure to achieve step-length symmetry.
4. The Össur Logic App must be used for setting device parameters during dynamic alignment.
5. Instruct the patient how to operate the device and understand the warning signals that the device may issue
(see Device Warning Signals section).
6. Instruct the patient to recognize and activate the different states of the device (see Supported Activities section).
Note: Use the "Initial Setup" function in the Össur Logic app to adjust the device for basic use. Use the "Advanced
Settings" function to fine tune the device.
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