Pankow's Charts Flashcards
What is the function of the SACH foot
Simplicity
What is the indication for the SACH foot
General utility
What is the advantage of the SACH foot (2)
- Inexpensive
2. Durable
What is the disadvantage of the SACH foot (2)
- Energy consuming
2. Rigid
What is the function of the single axis foot
Promote rapid footflat
What is the indication for the single axis foot
To enhance prosthetic knee stability
What is the advantage of the single axis foot (1)
- Stability in early stance
What is the disadvantage of the single axis foot (3)
- Increased cost
- Increased weight
- Maintenance
What is the function of the multi-axis foot (2)
- Hindfoot inversion and eversion
2. Internal and external rotation
What is the indication for the multi-axis foot
To accommodate uneven surfaces
What is the advantage of the multi-axis foot (1)
- Relieve stress on skin and prosthesis
What is the disadvantage of the multi-axis foot (3)
- Increased cost
- Increased weight
- Maintenance
What is the function of the elastic keel
Smooth rollover
What is the indication for the elastic keel
Easier ambulation
What is the advantage of the elastic keel (2)
- Comfortable
2. Reliable
What is the disadvantage of the elastic keel (2)
- Limited push-off
2. Increased cost
What is the function of the dynamic response foot
Active pushoff
What is the indication of the dynamic response foot
To increase activity level
What is the advantage of the dynamic response foot (1)
- Responsiveness
What is the disadvantage of the dynamic response foot (1)
- Increased cost
What is the general indication of the single axis (constant friction) knee
Single speed walking on level surfaces only if hip control is good or better
What is the advantage of the single axis (constant friction) knee (3)
- Simple
- Inexpensive
- Reliable
What is the disadvantage of the single axis (constant friction) knee (2)
- Fixed cadence
2. Low stability
What is the general indication of the stance control (weight activated) knee (3)
- Initial prosthesis
- General debility
- Poor hip control (uneven terrain)
What is the advantage of the stance control (weight activated) knee (1)
- Improved knee stability
What is the disadvantage of the stance control (weight activated) knee (2)
- Delayed swing phase
2. Must unload fully to flex and sit
What is general indication for the polycentric positive stability knee (3)
- Initial prosthesis
- General debility
- Poor hip control (uneven terrain)
What s the advantage of the polycentric positive stability knee (1)
- Excellent knee stability
What is the disadvantage of the polycentric positive stability knee (2)
- Added weight
2. Added cost
What is the general indication for polycentric sitting cosmesis knee (2)
- Knee disarticulation
2. Very long transfemoral amputation
What is the advantage of the polycentric sitting cosmesis knee (1)
- Cosmesis for long amputations
What is the disadvantage of the polycentric sitting cosmesis knee (3)
- Added weight
- Added cost
- Not heavy duty
What is the general indication for the manual locking knee
Knee of last resort
What is the advantage of the manual locking knee
Ultimate knee stability
What is the disadvantage of the manual locking knee (2)
- Abnormal gait
2. Awkward sitting
What is the general indication of the fluid controlled knees
Able to vary walking speed
What is the advantage of the fluid controlled knees (3)
- Variable cadence
- Smoothest most natural gait
- Sophisticated stability
What is the disadvantage of the fluid controlled knees (3)
- Great weight
- Great cost
- Maintenance
What is the general indication for the hybrid knee
For combined functions from two or more classes
What is the advantage of the hybrid knee (1)
- One knee allows multiple functions
What is the disadvantage of the hybrid knee (2)
- Great cost
2. Complexity
What feet fall into K1-K2 (4)
- SACH
- Single axis
- Multi-axis
- Elastic keel
What feet fall into K3-K4 (2)
- Dynamic response
2. Fluid filled
What knees fall into K1-K2 (4)
- Constant friction (single axis)
- Stance control (weight activated)
- Polycentric
- Manual locking
What knees fall into K3-K4 (3)
- Fluid controlled
- Hybrid
- Microprocessor