743L500 3D L.A.S.A.R. Posture
Deviations in the course of the load lines in 3D
mode
•
Force transmission points far away from each other
•
Significantly tilted towards each other at the top
Possible causes
•
1a), 2a), 3a)
•
TF prostheses: pes equinus position for knee stabil
isation
•
Orthosis: spasm
Possible solutions
–
1b), 2b), 3b)
–
Orthosis: use suitable means to establish
ground contact of the elevated heel to make
force transmission more balanced
Deviations in the course of the load lines in 3D
mode
•
Force transmission points close together
•
Significantly tilted away from each other at the top
Possible causes
•
Hips not parallel to frontal plane
•
1a), 2a)
•
Subjective instability of the prosthetic knee joint
•
Unfavourable component selection
•
Changes on the contralateral side
•
Excessive compensation for a hip flexion contrac
ture
•
Unfavourable load application to the prosthetic
socket
Possible solutions
–
1b), 2b)
–
Use a prosthetic knee joint with stance phase
support
–
Take hip flexion contracture into account for
optimisation during the dynamic trial fitting
–
Evenly distribute load application to the pros
thetic socket
Use
109