Össur Flex-Foot Cheetah Instrucciones Para El Uso página 6

ALIGNMENT
BENCH ALIGNMENT
Sagittal plane
1. Use an alignment jig to determine the vertical socket position.
2. Make sure the load line bisects the socket.
3. Make sure:
– that the load line falls through the ground contact point
– or that the load line is posterior to the toe end per dimension
X below (Figure 3).
4. Clamp the foot into the correct flexion position Y (Figure 3).
Coronal Plane
1. Set the applicable socket abduction/adduction.
2. Offset the foot module 12 mm away from centerline (Figure 4).
Cheetah Junior: No offset.
3. Set up for 5° of external rotation (Figure 5).
4. Set the correct height - see compression in table below to
compensate for vertical compression.
Device
Flex-Foot Cheetah
Cheetah Xtend
Cheetah Xtreme
Cheetah Xcel Large
Cheetah Xcel Small
Cheetah Xpanse Large
Cheetah Xpanse Small
Cheetah Junior
Dynamic Alignment
Physical ability and the length of residual limb will have an effect on
alignment. Optimal alignment reduces energy expenditure and reduces
muscle and ligament strain.
Adjust alignment to improve gait symmetry.
The A-P alignment and vertical deflection from socket to foot can have an
effect on stride length.
Cutting the Foot
Make sure the user has sufficient clearance during knee flexion.
Use a hack saw or band saw to trim the foot.
NOTE: The foot must be flush with or extend above the lamination
connector.
USAGE
Troubleshooting
Make sure socket fit and suspension are optimal. Examine running
symmetry at patients preferred running speed.
If the duration of loading the prosthesis is longer compared to the
contralateral side:
• The foot module is too soft
• The prosthesis is too short
• The foot is aligned too far anteriorly
Dimension X
50 mm
63 mm
63 mm
110 mm
100 mm
110 mm
110 mm
35 mm
Flexion Angle Y Compression
7°
7°
7°
9°
7°
48°
54°
7°
25 mm
38 mm
38 mm
38 mm
38 mm
38 mm
38 mm
15 mm
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