endoskeletal components

What are endoskeletal components in lower limb prosthetics?

They are widely available components that allow for:

• Angular and linear adjustability in three planes, independently.
• Adjustability throughout the life of the prosthesis.

What are the varying weight options for endoskeletal components?

• Light-weight: Aluminum, Titanium, Carbon fiber.
• Heavier duty: Steel, Titanium, or Heavy-Duty sizing.

What tools are used in basic transtibial prosthetic assembly?

• Allen wrenches
• Torque wrenches

Outline the basic assembly process for a transtibial prosthesis.

1. MOLD
2. MODIFY
3. PULL TEST SOCKET
4. Assemble prosthetic components
5. Bench align the prosthesis

What is the function of Gray and Grace Plates in prosthetics?

They serve as the main connection between the socket and distal componentry.

Describe the screw holes in Gray and Grace Plates.

Screw holes are threaded.

How are Gray and Grace Plates secured to the socket?

They are secured using epoxy resin (depending on socket/suspension type) or screws, and are laminated into the definitive socket.

What is the purpose of 4 Hole Connectors?

They connect the socket to distal components.

What types of connecting points can 4 Hole Connectors have?

Connecting points can be male or female, and static or rotating.

Describe the screw holes in 4 Hole Connectors.

Screw holes are not threaded.

What are Offset Plates used for among linear adjustments?

Used for translational adjustments during static or dynamic alignment, moving the socket relative to the foot and vice versa.

How do Slide Adaptors provide linear adjustments?

Slider plates allow translation in both the coronal and sagittal planes with one component.

What is the function of Tube Clamps?

They connect the pylon to the proximal and distal components.

What is the "shin" of the prosthesis and what does it connect?

The pylon is the "shin" of the prosthesis, connecting all proximal components to the foot. It can come with an integrated female adaptor.

When are STATS Adaptors used?

They are used when a pylon is not needed and are available in different sizes.