Socket Design

The socket is the part of the prosthetic limb that is in contact with your body. This part of the leg is probably the most important, because its where your body weight is transferred to the prosthetic limb. The reason we spend so much time on this part is to make sure the weight is distributed safely and comfortably to protect your stump and joints.



Below Knee

Photo demonstrates the still common transtibial (below knee) socket design with a very narrow pressure area between the back of the knee and just under the knee cap. This provides a firm lock to hold the stump off the bottom of the socket by overloading the soft tissues in these areas. The area in the back of the knee contains several major blood vessels and nerve pathways that we do not want to overload.



Above Knee

Photo below demonstrates the still common socket design with a very narrow pressure area between the front and back walls. This provides a firm lock to hold the stump off the bottom of the socket by overloading the soft tissues in these areas (upper part of the front wall). This area contains several major blood vessels and nerve pathways that we do not want to overload. These sockets are difficult to control because there is no correct position of th femur (large bone in the leg).

Socket design with a very narrow pressure area

Photo below demonstrates a variation of the Ischial containment sockets that do not have an overloaded front area. This design prevents the stump falling into the socket by means of a “bony lock” between the pelvis and the femur. This socket works very well for certain stump types but is not ideal for everyone.

Ischial containment sockets

Photo below demonstrates a pentagonal socket design where load is spread through five walls that are shaped to the underlying structures of the limb. This socket does not have any point pressures, provides adequate control and is able to be fitted to a wide range of stump shapes and sizes.

Pentagonal socket design




Through Knee

Photo demonstrates a combination of rigid outer socket, a flexible inner socket and a prosthetic liner with a valve. This design provides reliable fixation while unloading the bony structures over the knee




Partial Foot

There are different prostectic fitment vaiety available with us which is prescribed as er patient activity level and functional and cosmetic need.