1
Q
What are the generic groups of feet?
A
- single axis
- SACH
- Multiaxial
- Flexible keel
- Dynamic response
2
Q
What is basic function, primary indication, advantages/disadvantages for single axis feet?
A
- simplicity
- limited ambulation or max durability
- inexpensive and durable
- rigid forefoot, not energy efficient
3
Q
What is basic function, primary indication, advantages/disadvantages for SACH feet?
A
- Rapid foot flat
- To enhance knee stability
- biomechanical stability in early stance
- abrupt DF stop increases knee hyperextension moment, increased weight, maintaince, initial cost
4
Q
What is basic function, primary indication, advantages/disadvantages for multiaxial feet?
A
- Hindfoot ineversion/eversion, internal/external rotation
- accommodates uneven surfaces
- Reduces stresses on skin and prosthesis
- increased weight, maintenance, initial cost
5
Q
What is basic function, primary indication, advantages/disadvantages for flexible keel feet?
A
- smooth, easy roll over
- to make ambulation easier
- comfortable and reliable
- limited pushoff, increased cost
6
Q
What is basic function, primary indication, advantages/disadvantages for dynamic response feet?
A
- dynamic pushoff
- to increase activity level
- subjective sense of dynamic responsiveness
- increased cost
