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PROSTHETIC FEET
-ESHA S. MALIK
MPO [1]st
TYPES OF PROSTHETIC FEET
ARTICULATED
• Single axis.
• Greis singer multiple-axis.
• Hydraulic multiple-axis.
NON ARTICULATED
• Solid-ankle cushion heel (SACH).
• Stored Energy(STEN) foot.
• Carbon Copy II foot.
• Seattle Foot.
• Flex-Foot.
SOLID ANKLE CUSHIONED HEEL
INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES
All activity levels. Very high level activities. Light weight Heel cushion may loose its
elasticity with time.
Even terrain. Strong The rubber or heel cushion
may corrode with time.
Light weight components No moving parts.
Wet and dry environment. Little maintenance.
Fair shock absorption.
STORED ENERGY FOOT (STEN)
WOODEN
KEEL
RUBBER
PLUG
INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES
Very active patients. Limited activity level. Provides a
smooth/natural gait
pattern.
Expensive.
Athletic patients. It is available in
waterproof material.
JAIPUR FOOT
SINGLE AXIS FOOT
INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES
Weak
quadriceps
Wet/dry environment. Increased knee
stability.
High maintenance.
Distal anterior
tibia painful/
bony
The bumpers can be
adjusted.
Heavy
Hilly
environment.
Less cosmetic.
Tendency to be noisy.
Wet environment.
MULTI AXIS FOOT
INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES
Rough or uneven terrain. Wet/ dirty environment. Provides a smooth
natural gait.
Increased weight.
Weak quadriceps. Limited activity level. Reduce torque on the
stump.
Increased maintenance.
Distal anterior tibia
painful / bony.
Patients who seldom walk
on uneven terrain.
It is easy to adjust. Wet environment will
cause rust/breakdown.
ENERGY RECOVERY FOOT
Types of energy recovery foot
PROSTHETIC FOOT ALIGNMNET
The abduction/adduction angle of the
stump should be carefully measured
during assessment.
Plumb line should be drawn on the
cast, transferred to the socket and
followed during bench alignment.
• External rotation 5 degrees in relation
to the line of progression
Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development,
Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
COMPARISON OF ENERGY STORING FOOT AND SOLID
ANKLE CUSHIONED HEEL.
Walking with a lower-limb prosthesis results in a higher metabolic energy cost than walking
with two intact limbs. Introduction of the energy storage and return (ESAR) foot, a passive-
elastic prosthetic foot was marketed that was able to more closely mimic the human ankle by
storing energy during stance and releasing this energy at push-off.
Abbreviations: COM = center of mass, COP = center of pres-sure, ESAR = energy storage
and return, SACH = solid-ankle cushioned heel.
Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development,
Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
AIM AND OBJECTIVE
ESAR feet are able to reduce the mechanical energy dissipated during the step-to step transition.
INCLUSION CRETERIA
Unilateral amputee.
Cause of amputation – Trauma.
EXCLUSION CRETARIA
Any musculoskeletal disorder or neurological disease.
METHEDOLOGY
Source: The study was approved by the INAIL research board (Commissione Tec-nico Scientifica; Budrio, Italy).
Data collection : Fifteen males with a unilateral amputation.
RESULT
Mechanical Work Performed on Center of Mass.
Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare,
Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
Prosthetic Push-Off Work
Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare,
Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development,
Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
PROSTHETIC FEET description and its types
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PROSTHETIC FEET description and its types

  • 1. PROSTHETIC FEET -ESHA S. MALIK MPO [1]st
  • 2. TYPES OF PROSTHETIC FEET ARTICULATED • Single axis. • Greis singer multiple-axis. • Hydraulic multiple-axis. NON ARTICULATED • Solid-ankle cushion heel (SACH). • Stored Energy(STEN) foot. • Carbon Copy II foot. • Seattle Foot. • Flex-Foot.
  • 4. INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES All activity levels. Very high level activities. Light weight Heel cushion may loose its elasticity with time. Even terrain. Strong The rubber or heel cushion may corrode with time. Light weight components No moving parts. Wet and dry environment. Little maintenance. Fair shock absorption.
  • 5. STORED ENERGY FOOT (STEN) WOODEN KEEL RUBBER PLUG
  • 6. INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES Very active patients. Limited activity level. Provides a smooth/natural gait pattern. Expensive. Athletic patients. It is available in waterproof material.
  • 9. INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES Weak quadriceps Wet/dry environment. Increased knee stability. High maintenance. Distal anterior tibia painful/ bony The bumpers can be adjusted. Heavy Hilly environment. Less cosmetic. Tendency to be noisy. Wet environment.
  • 11. INDICATIONS CONTRAINDICATIONS ADVANTAGES DISADVANTAGES Rough or uneven terrain. Wet/ dirty environment. Provides a smooth natural gait. Increased weight. Weak quadriceps. Limited activity level. Reduce torque on the stump. Increased maintenance. Distal anterior tibia painful / bony. Patients who seldom walk on uneven terrain. It is easy to adjust. Wet environment will cause rust/breakdown.
  • 13. Types of energy recovery foot
  • 14. PROSTHETIC FOOT ALIGNMNET The abduction/adduction angle of the stump should be carefully measured during assessment. Plumb line should be drawn on the cast, transferred to the socket and followed during bench alignment. • External rotation 5 degrees in relation to the line of progression
  • 15. Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy COMPARISON OF ENERGY STORING FOOT AND SOLID ANKLE CUSHIONED HEEL. Walking with a lower-limb prosthesis results in a higher metabolic energy cost than walking with two intact limbs. Introduction of the energy storage and return (ESAR) foot, a passive- elastic prosthetic foot was marketed that was able to more closely mimic the human ankle by storing energy during stance and releasing this energy at push-off. Abbreviations: COM = center of mass, COP = center of pres-sure, ESAR = energy storage and return, SACH = solid-ankle cushioned heel.
  • 16. Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy AIM AND OBJECTIVE ESAR feet are able to reduce the mechanical energy dissipated during the step-to step transition. INCLUSION CRETERIA Unilateral amputee. Cause of amputation – Trauma. EXCLUSION CRETARIA Any musculoskeletal disorder or neurological disease. METHEDOLOGY Source: The study was approved by the INAIL research board (Commissione Tec-nico Scientifica; Budrio, Italy). Data collection : Fifteen males with a unilateral amputation.
  • 17. RESULT Mechanical Work Performed on Center of Mass. Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
  • 18. Prosthetic Push-Off Work Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy
  • 19. Rf-Daphne Wezenberg,, Andrea G. Cutti,Antonino Bruno, Han Houdijk, Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, the Netherlands; and Department of Research and Development, Heliomare, Wijk aan Zee, the Netherlands; 2 Department of Research and Development, INAIL Prosthesis Centre, Vigorso di Budrio, Bologna, Italy