There are 4 models of microprocessor knees available today.  What is most important to consider when researching the microprocessor knees is to clearly understand that each of these knees is different, unique and provides a different combination of specific features and functions. 

It is not a matter of which is the best microprocessor knee, but rather which microprocessor knee is best for you.

This chart will provide an overview of the various microprocessor knee models.
Knee
Compact
Rheo
Adaptive 2
C-Leg
Click on the picture of each knee for more detailed information.
Manufacturer
Otto Bock
Ossur
Endolite
Otto Bock
Country of Origin
Germany
Iceland
England
Germany
Characteristics
Component Weight
2.4 Pounds
3.4 Pounds
3.3 Pounds
2.6 Pounds
Weight Limit
275 Pounds
200 Pounds
264 Pounds
275 Pounds
Stance Control
Hydraulic
Magneto-Rheological
Hydraulic
Hydraulic
Swing Control
Hydraulic
Magneto-Rheological
Pneumatic
Hydraulic
Battery
Rechargeable
Lithium Ion
Rechargeable
Lithium Ion
Rechargeable
Lithium Ion
Rechargeable
Lithium Ion
Foot Options
Limited
Unlimited
Unlimited
Limited
Features
Microprocessor Stance
X
X
X
X
Microprocessor Swing
.
X
X
X
Stance Flexion
X
X
X
X
“Second Mode”
.
.
.
X
Rechargeable Batteries
X
X
X
X
Ratings
Stability
Excellent
Excellent
Very Good
Excellent
Stairs
Excellent
Excellent
Very Good
Excellent
Ramps
Excellent
Very Good
Very Good
Excellent
Long distance walking
Moderate
Excellent
Excellent
Very Good
High Speed Walking
Moderate
Excellent
Excellent
Excellent
Change Speed while Walking
Good
Excellent
Excellent
Excellent
Durability
Good
Very Good
Excellent
Very Good
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