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Instructions:
• Two 3mm steel pins are provided in the kit.
• Insert pins into alignment wedges.
• Twist alignment wedges against each other to fine tune alignment.
CATEGORY SELECTION CHART
Please refer to the selection charts below to determine the appropriate
stiffness required according to Össur recommendations.
WEIGHT KG
45-52
WEIGHT LBS
99-115
Low
1
Impact Level
Moderate
1
Impact Level
High
2
Impact Level
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 5)
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.
53-59
60-68
69-77
116-130 131-150 151-170 171-194 195-220 221-256 257-287 288-324 325-356
1
2
2
3
3
4
78-88
89-100
3
4
5
4
5
6
5
6
7
101-116 117-130 131-147 148-166
6
7
7
8
8
9
N/A
8
9
9
N/A
N/A
6
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