Several amputation levels are included in the category of ‘above knee’:
- Hemipelvectomy, through the pelvis
- Hip Disarticulation, through the hip
- Transfemoral, through the femur
- Knee Disarticulation through the knee
The most important portion of a prosthesis is the socket, which is the component the comes into direct contact with the residual limb. Â A socket is fabricated based on a mold of the residual limb. Â There are many methods of prosthetic suspension, which is how the prosthesis is held on.
Examples of suspension systems include:
- Pin locking silicone gel liner
- Vacuum pump suction
- Suction
- Quad socket design
- Ischial containment
- Waist belt
- Lanyard
- Symmetry liner suction
There are a variety of prosthetic knees and feet available, each design recommended based on the user’s:
- Overall body weight
- Activity level
- Stage in rehabilitation
- Unique anatomy
- Personal preference
The purpose of a prosthetic knee and foot is to simulate natural movement and absorb shock the upon gait impact.
The majority of prosthetic feet function by mechanical means. Â The Proprio foot actually includes microprocesor technology.
In addition to the many mechanical prosthetic knees available, several micropocessor designs have been developed, such as:
- Genium
- C-Leg
- Rheo
- Plie