Össur Flex-Symes SLPOXYYO Manual Del Usuario página 6

Heel Function and Adjustments
The heel stores energy after initial contact, thus slowly releasing it at
midstance.
The forward momentum generated by this action results in the toe being
loaded for optimum energy release at terminal stance. The heel to toe
action can be influenced by:
• A-P positioning of foot.
• Dorsi-Plantarflexion.
• Heel Stiffness.
Heel too Soft
Symptoms
• Foot will come to foot flat position too early, (amputee feels he/she
is sinking into a hole).
• Extra energy is required to climb up over the toe.
• Toe will feel too stiff.
• Knee may hyperextend.
Action
• Add polyurethane heel wedges.
• Shift socket anterior/ foot posterior.
Heel too Hard
Symptoms
• Rapid heel to toe movement.
• Amputee has poor control of prosthesis.
• Toe will feel too stiff, causing minimal energy return.
• Knee may become unstable.
Action
• Replace heel wedge with smaller wedge.
• Shift socket posterior or foot anterior.
Heel Wedges CM150011 (Figure E)
The wedge can influence the heel to toe function. Start altering the heel
resistance to improve foot response by adding a heel wedge. The 2°, 4°
& 6° wedges can be interchanged to customize the stiffness and achieve
the desired functional characteristics. A combination of wedges may be
used.
(1) 2° – yellow
(2) 4° – red
(3) 6° – blue
I Temporary Wedge Placement
• Cut the wedge to the width of the foot module.
• Roughen the upper and lower surface of the wedge with abrasive
paper.
• Place the wedge in the foot/heel junction.
• Secure in position, bond the wedge to upper surface with tape
wrapped around the foot module.
II Permanent Wedge Placement
• Apply adhesive on the upper side of the wedge only.
• Locate in the foot/heel junction and position before adhesive sets.
• For split toe feet install the heel wedge then remove a thin slice in
the middle by cutting with a sharp knife through the split in the
carbon foot module.
Lamination Technique
• Mark alignment position after dynamic alignment and remove foot
module from socket.
Note: If alignment wedges are straight, both wedges may be removed to
decrease clearance and complexity! This will lower the height by 6mm.
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