Prosthetic Feet Flashcards
Select from the list below the foot that has the most coronal plane accommodation..
SAFE
SACH foot heel compression at loading response simulates:
Plantar Flexion
Prosthetic joint simulation can be accomplished by true articulation of the prosthetic foot as well as compression of the foot itself.
True
Shock absorption or the ability of a prosthetic foot to dampen the impact at loading response during the gait cycle, is not a critical feature of the prosthetic foot and accomplished by a separate component used in the prosthesis.
False
By allowing plantar flexion at loading response with a single axis foot, the knee flexion moment is reduced. This may:
Increase stability at the knee
The flexible keel foot simulates plantar flexion at loading response through compression and simulates dorsiflexion, inversion, and eversion by deforming.
True
Dynamic response feet are complex in their composition, design, and biomechanical properties. Therefore,
- they typically are more difficult to align
- manufacturers alignment recommendation are important to follow
- they compress or deform at loading response to simulate plantar flexion.
- they function within a relatively narrow band of tolerance based on the patient’s weight and activity level
Prosthetic foot function provides:
- joint simulation
- shock absorption
- weight bearing base of support
- muscle simulation
A patient’s functional ability may be classified into one of five categories, referred to as K-levels. The most appropriate foot for functional level 1 (k-1) is
SACH
The most appropriate foot for level 2 (K-2) is:
Seattle light
The most appropriate foot for level 3 (K-3) is
Dynamic Response
Most SACH feet are of the external keel design.
False
Which of the following prosthetic feet has a transverse ankle axis that permitted the foot to go into plantar flexion and dorsiflexion?
Single Axis Foot
Which of the following is a characteristic of a SACH foot?
Wedge cushioning in heel.
