P&O: What is it?

 

 

Definitions:

 

Prosthetics: an artificial device to replace a missing part of the body*

 

Orthotics: a support or brace for weak or ineffective joints or muscles*

 

            *Definitions taken from Merriam-Webster online dictionary

 

            In prosthetics and orthotics, simply stated, we fit and fabricate artificial limbs and body braces to help patients function better in their everyday life.  From the clinical aspect (UW is a clinical education) we work with our patients to make custom fabricated devices and use appropriate components in order to meet our patients needs and goals.

 

The Process:

 

            Prosthetics:

-        A plaster cast is taken of the residual limb. 

-        The cast is then filled with liquid plaster and allowed to dry to form a positive model of the limb.

-        Modifications are made to the model as found necessary by the prosthetist.

-        Clear plastic is pulled over the model for a custom “Check Socket”

-        The socket is attached to temporary adjustable components and a foot

-        During a second appointment, the patient tries on the clear check socket.

-        The prosthetist evaluates the fit and makes appropriate modifications to socket by heating the plastic and pushing it in or out.

-        On a patient with a leg amputation, when the socket fits well, the patient may be allowed to walk on this temporary prosthesis and the patient’s gait (walking) is evaluated. 

-        The prosthetist will make further adjustments, through components to achieve an efficient and normal gait pattern.

-        This process may be repeated as needed.

-        Once the desired fit is obtained, the socket is then made out of a more durable material and  permanent components are attached

 

Orhotics:

-        Patient is evaluated for muscle weakness and joint mobility.

-        A plaster cast is taken of the patient’s affected limb.

-        The cast is then filled with liquid plaster and allowed to dry to form a positive model of the limb.

-        Modifications are made to the model as found necessary by the orthotist.

-        A plastic or medal device is formed over the model.

-        Patient is fit with the device on their second appointment.

-        Adjustments are made after looking at the overall fit.

-        On patients with lower extremity (legs) involvement their gait is evaluated and further adjustments are made.

 

 

 

 

 

 

 

 

      This is an example of an upper extremity wrist-hand orthosis (WHO).  This type is called a wrist driven WHO because it uses the extension (or pulling up) of the wrist to make the fingers close to be able to pick up an object.  This device is used by people who can no longer pinch their fingers together but still have some control of their wrist.

 

 

 

 

 

 

 

 

 

 

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