Fitting Advice - Blatchford Elan Serie Manual De Instrucciones

9.6 Fitting advice

The correct alignment (A-P position), range of motion (distribution of plantar to
dorsiflexion) and adjustment of the hydraulic resistance settings are critical in
achieving a smooth roll-over and correct gradient adaptation.
The Elan foot is supplied assembled with heel and toe springs of the same category.
If after following the instructions below you have problems with the function
please contact the sales team in your area for advice.
Any of the following will have a negative effect on function and stability.
• Incorrect spring selection
• Incorrect A-P shift alignment
• Incorrect distribution of plantar and dorsiflexion range
Prior to setup or if further adjustment is required ensure the ankle is not calibrated
Ensure the ankle is not calibrated by carrying out a factory reset and that standing
support mode is disabled. See Section 9.5 for details of factory reset and Section 14
to switch off standing support mode.
Symptoms
1
• Sinking at heel strike
• Difficulty in achieving a smooth
progression to mid stance
• User feels they are walking up hill or
forefoot feels excessively long
2
• Progression from heel strike to mid
stance is too rapid
• Difficulty in controlling the energy
return from the foot at the heel
strike (reduced knee stability)
• User feels heel is too hard, fore foot
is too short
3
Heel contact and progression feel OK
but:
• Forefoot feels too soft
• Forefoot feels too short
• User feels they are walking down
hill, possibly with reduced knee
stability
• Lack of energy return
• Increase plantar flexion resistance
• Check A-P shift alignment; ensure foot is not too
anteriorly positioned
• Check distribution of plantar and dorsiflexion
movement;
ensure that the plantar flexion range is not excessive
• Check spring category is not too soft, if so fit a higher
rate spring
• Reduce plantar flexion resistance
• Check A-P shift alignment; ensure foot is not too
posteriorly positioned
• Check distribution of plantar and dorsiflexion
movement; ensure that there is adequate
plantarflexion range
• Check the spring category is not too high for the
weight and activity of the patient, if so fit lower rate
spring
• Increase dorsiflexion resistance
• Check A-P shift alignment;
ensure foot is not too posteriorly positioned
• Check distribution of plantar and dorsiflexion
movement;
ensure that there is not excessive dorsiflexion range
• Check the spring category is not too soft for the
weight and activity of the patient, if so fit higher rate
spring
21
Remedy
938317S/3-0719