©2017
Otto
Bock
H
e
a
lt
h
C
a
re
LP
·
142
55
6/17
Kenevo
Although this knee is allowed for use with the TaiLor Made foot, Ottobock would not typically suggest this
K2 knee with a carbon foot except under special circumstances.
Please contact an Ottobock Professional Clinical Service clinician if wanting to use this combination.
C-Leg Bench Alignment Recommendation from Instructions For Use
• Position the middle of the foot (MF) approx. 30 mm/1.18 inch anterior to the alignment
reference line (A). This applies to all foot components that are recommended for use with
the product, regardless of the previous alignment specifications in the Instructions for Use
of those feet.
• Noting the alignment recommendation of the foot component, add 5 mm to the effective
heel height (shoe heel height – sole thickness in the forefoot area), and set the outward
rotation of the foot.
• Place the alignment reference point (=knee axis) approx. 0-5 mm/0-0.19 inch anterior to
the alignment reference line. Take into account the knee-ground distance and
outward rotation of the knee (the adapter insert provides for a rotation of approx. 5°).
The recommended sagittal positioning of the alignment reference point is 20
mm/0.79 inch above the medial tibial plateau.
• Connect the foot and knee joint using a tube adapter. To do so, tilt the joint in the correct position
and set the required tube length.
• Mark the lateral center of the socket with a centered, proximal dot and a centered, distal
dot. Mark a line through both dots from the socket brim to the end of the socket. Use the
4H105 knee extender (see IFU page 22).
• Now position the socket such that the alignment reference line passes through the
proximal centre dot. Adjust the socket flexion to 3° – 5°, but take the individual situation
(e.g. hip joint contractures) and the ischial tuberosity-to ground distance into account.
• The adjustment software helps to determine the socket flexion precisely.
• Connect the socket and modular knee joint using an adapter.
C-Leg Static Alignment Recommendation from the Instructions For Use
• To determine the load line, have the patient (with shoes) stand on the force measurement
plate with the prosthesis side and on the height compensation plate with the other leg. The
prosthesis side must be sufficiently loaded (> 35% body weight). Note the weight display on
the L.A.S.A.R. Posture.
• Optimize the alignment solely by changing the plantar flexion. Only make adjustments to
the distal and proximal set screws of the socket adapter on the prosthetic foot, so that the
load line (laser line) runs approx. 30 mm/1.18 inch in front of the alignment reference point
(= knee axis) of the knee joint.
Ottobock US · P 800 328 4058 · F 800 655 4963 ·
www.professionals.ottobockus.com
Ottobock Canada · P 800 665 3327 · F 800 463 3659 · www.professionals.ottobock.ca
