Ossur REBOUND DUAL Gebrauchsanweisung Seite 6

5. Fit the Lower Cruciate Strap (C) first, located directly below the knee
(Fig. 4). This strap is located above the calf muscle and aids in the
correct positioning of the device as it helps create the device-to-bone
contact required to help keep the device in place.
6. Next, snugly fasten the Bottom Strap (D) by inserting it through the
D-Ring.
7. Continue with the Upper Cruciate Strap (E), located just above the
knee and then fasten the Top Strap (F).
Note: Overtightening the top two straps can cause the device to migrate.
8. Last, snugly fasten the Anterior Tibial Strap (G) (Fig. 5).
• If the device frame is too far anterior, loosen the Anterior Tibial Strap
and tighten the Lower and Bottom Straps.
• If the device frame is too far posterior, loosen the Lower and Bottom
Straps and tighten Anterior Tibial Strap.
Device Adjustments
Adjusting the Device Contouring
The device can be adjusted to individual anatomies. Use bending irons to
cold form the aircraft-grade aluminum frame to fit different thigh and calf
shapes.
How to Replace or Move the Field-Serviceable D-Rings
D-Rings can be moved from the interior to the exterior or replaced if broken.
Moving a D-Ring from the interior to the exterior:
1. Remove strap from D-Ring.
2. Bend D-Ring mounted on the device interior, push it inwards to
release it from the keyhole lock and remove it from the rivet (Fig. 6).
3. Attach D-Ring to the device exterior by pushing down onto the rivet
through the keyhole lock. Slide and click D-Ring into place. Place
keyhole lock with indented side facing up (Fig. 7).
4. Replace strap. If needed, repeat steps for other D-Rings.
Adjusting the Height of the Device
The device can be adjusted for individual height requirements:
1. Loosen the screws on both sides of the Upper Frame (H) and pull the
frame up with a steady force (Fig. 8). Ensure the device is properly
aligned by checking that both hinge arms are located at the same
position on the medial and lateral Hinge Arm (I).
2. Retighten the screws until snug.
Adjusting the Varus / Valgus angle of the Device
The device can be adjusted for individual varus or valgus angles and to
create an offloading force to either the medial or lateral compartment.
1. Loosen the screws on the desired side of the device and slide the
Upper Frame (H) to the desired position with a steady force.
2. Adjust the medial Hinge Arm (I) to offload the medial compartment or
adjust the lateral Hinge Arm to offload the lateral compartment. The
slide bar has a lettered scale and may be moved to increase or decrease
the amount of varus or valgus force on the leg (Fig. 8). The lettered scale
does not relate to degrees of offloading and should be used as a guide.
3. Retighten the screws until snug (recommended torque value of 3 in-lb
/ 0.34 Nm).
4. All adjustments should be determined by a healthcare professional, in
accordance with the patient's comfort level. Each time the device is
adjusted, the healthcare professional should note the letter for
a record of progression.
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