- See: Foot Selection for AKA Prosthesis:
- Discussion:
- excessive heel softness: causes knee hyper-extension;
- excessive heel stiffness: knee tends to hyper-flex at heel strike;
- Types of Prosthetic Feet:
- SACH foot:
- single axis foot:
- used since the Civil War, is based on an ankle hinge that provides dorsiflexion and plantar flexion;
- disadvantage of single axis foot includes poor durability & cosmesis;
- multaxis foot:
- allows inversion and eversion and rotation of foot and are good for work on uneven surfaces
at the expense of overall utility and wt;
- energy storing:
- designed with a flexible keel and may perhaps become the new standard for general use;
- these are designed with a cantilever spring and are best for youngg & atheletic patients
Flex-Foot®