Basic Set-Up; Positioning Of The Socket - Streifeneder KINEGEN.air-active Manual Del Usuario

Attention!
Do not touch the joint mechanism when flexing the knee joint
– as fingers may be caught! Injury hazard!

3.1 Basic set-up

Set up the prosthesis as follows: In front view, the perpendicular line (a) goes
down from the socket centre across pyramid adapter and centre of the tube
support. In sagittal view, the set-up reference line (b) goes from trochanter
major (T) across the upper joint axis in front, to the transition between rear
third and centre third of the prosthetic foot. The heel height is adjusted to
approx. 5 mm (fig. 1b).

3.2 Positioning of the socket

Mark the prosthetic socket proximally on the lateral side and distally in the
centre with "T" and "M", and connect the marks with a line (c) from socket
edge to socket end. The connection line (c) must cross the set-up reference
line in the area of the socket entry level (fig. 1b). The basic setting of the
socket flexion is usually 5°, whereas the individual situation (e.g. hip joint
contraction) must be considered.
Attention!
If the residual limb flexion is not considered, the user may not
be able to actively extend the prosthetic knee joint. This may
lead to functional errors or to reduced safety while standing.
Shifting the socket into posterior direction increases dynamics and reduces
the standing safety. Shifting the socket into anterior direction increases the
standing safety and reduces dynamics.
The connection between prosthetic socket and knee joint must be effected
with an outer rotation of the knee joint of about 5°. Abduction and
adduction are adjustable by using the adjustment screws at the socket
adapter and at the prosthetic foot.
The final adjustment is done during the dynamic fitting.
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