Preparing For Assembly - Ottobock 12S4 Instrucciones De Uso

3 Technical data
Article number
Weight [g]
4 Handling

4.1 Preparing for assembly

For assembling the Ottobock Shoulder Joints you need a well fitting inner
socket. Attach a shaped part which may be needed for shoulder compensa-
tion to the inner socket.
For position and length adjustment, temporarily attach all single components
to the inner socket.
In case of unilateral fittings, the distal end of the thumb and the centre of
rotation of the elbow joint are the determining factors for the length of the
components (Fig. 1).
In case of bilateral fittings, priority is given to the prosthesis' functionality.
When adapting the length, make sure that the prosthesis will offer the patient
a high degree of freedom of movement.
With the 12S4 and Ottobock Shoulder Joints, length adaptations are pos-
sible by shortening the upper arm bars. Make sure, however, that there will
be a distance of at least 6 mm between the end of the bar and the fixing hole
centre. This will ensure full surface contact of the fixing screw.
With the 12S7 Ottobock Shoulder Joint, only make length adaptations via
the 12R4=* Elbow Joint.
Pay particular attention to the free swinging range of the shoulder joint.
The posterior stop should be at approximately 10° of retroversion (Fig. 2).
4.2 Assembly
INFORMATION
For patients with subtotal shoulder disarticulation, we recommend to
mount the shoulder joint distally at a little bit lower shoulder height for
reasons of symmetry and optical reasons.
16 | Ottobock
12S4
135
12S7
80