IDS ::: Prosthetics ::: Endoskeletal

Endoskeletal prostheses

Endoskeletal means having an internal framework or chassis. A human is therefore endoskeletal as the skeleton is an internal framework. This is clearly a different situation from a crab which has an external framework – an exoskeletal construction.

Endoskeletal prostheses are generally modular. A custom made socket is attached to the more distal components which are selected to give the appropriate features and functions. For more information on cosmetic covers click here.

The modular structure is normally comprised of lightweight alloy or carbon fibre tubes which connect the other modules such as ankles, knees and hips and elbows. Modules can generally be easily replaced in the case of breakage or a change of specification. Alignment devices are normally incorporated into the structure. The cosmesis is made from a foam blank, machined to match the contralateral limb where possible.

In an endoskeletal prosthesis, lightweight tubes connect different components when there is sufficient distal clearance. Alignment devices are components which permit changes of angulations and translation. Lengths are adjusted by means of cutting the tubes to length. Components are selected on the basis of features such as weight, strength, longevity, dimensions and function.

Endoskeletal prostheses are never fully waterproof and are often not damage resistant enough for children. The modules are specified to suit different activity levels and amputee weights.

Otto Bock "C Leg" knee module

A selection of Otto Bock endoskeletal tubes and adaptors. These connect modular components such as sockets, hips, knees and feet.

A similar selection of children's tubes and adaptors. Tubes are available in a range of strengths, suitable for different applications related to weight and activity levels.

A selection of Otto Bock modular knees and hips. (Items 1 to 4)

Endoskeletal components for transhumeral prosthesis, (not hand or glove.)

Attaching a transitional socket to an endoskeletal modular shin and foot assembly.

Assembly and static alignment of transfemoral endoskeletal prosthesis

A selection of Otto Bock uniaxial ankle joints. (Items 1 to 4)

A range of Otto Bock titanium modular adapters and alignment devices.

Endoskeletal transtibial prosthesis with cosmetic foam fitted.

Use the links below to find out more information on 'Construction':

Endoskeletal ::: Exoskeletal ::: Conventional ::: Solely Cosmetic ::: Silicone ::: Cosmetic Covers