Splint in the Spotlight – Radial Paralysis: a progressive orthosis

Splint-in-the-Spotlight-700x199

Our Orfit blog shares information and instructions in matching our thermoplastic materials to orthotic designs.
Please check back frequently to gain inspiration and ideas in orthotic fabrication for all of your 
patient’s needs.

Radial Paralysis – a progressive orthosis

radial-paralysis-orthosis

The radial nerve innervates the extensor muscles of the wrist and fingers. When the radial nerve is damaged, these muscles lose their innervation. The wrist and fingers then assume a flexed posture. When this paralysis results in complete flaccidity, the wrist should be stabilized in extension with a static orthosis.

The MCP joints should also be stabilized in extension, but a dynamic system will allow active MCP joint flexion, for function and participation in activities of daily living.

This dorsally based orthosis fabricated in Orfit Colors NS (Gold) is very lightweight, and allows most of the palmar surface to be free for sensory input.

radial-paralysis-orthosis2radial-paralysis-orthosis3

In this example, the wrist stabilization and MCP joint assistance are separated, so there is no tenodesis effect.

Another example allows for dynamic wrist assistance, appropriate for patients with wrist extensor muscle Grade 2/5: the lateral hinges are made with Orficast.

radial-paralysis-orthosis4radial-paralysis-orthosis5

 

If the patient can actively contract his finger flexors,  the volar part of the hand can be completely free of thermoplastic material with minimal support under the proximal phalanges to assist in MCP joint extension.

radial-paralysis-orthosis6radial-paralysis-orthosis7

 

For patients with wrist extensor muscles at Grade 3/5 the proximal portion of the orthosis can be eliminated and only MCP joint extension assistance is required.

radial-paralysis-orthosis8radial-paralysis-orthosis9

Questions?

If you have a question or comment, please post it in the Orfit Splinting & Rehabilitation Group on Facebook, or send an email to welcome@orfit.com.

Subscribe to our mailing list

* indicates required
Select your preferred newsletters

The protection of your personal data is our priority. Thank you for subscribing to one of our newsletters. We would like to invite you to share some personal data with us. The protection of this data is our priority.

By submitting this form, I agree to the processing of my data to receive personal messages by mail.

You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us, or by contacting us at welcome@orfit.com. We will treat your information with respect. For more information about our privacy practices please visit our website. By clicking below, you agree that we may process your information in accordance with these terms.

We use MailChimp as our marketing automation platform. By clicking below to submit this form, you acknowledge that the information you provide will be transferred to MailChimp for processing in accordance with their Privacy Policy and Terms.

We've selected some similar articles for you

Anti-Swan Neck Orthosis

Here is an example of how a simply designed orthosis can have an incredible impact on improved functionality for the patient with a hyperextension deformity of the PIP joint, known as a swan neck deformity. The typical posture of this deformity is PIP hyperextension and DIP flexion.
Read more

The Current Evidence for Static Progressive Orthoses for the Upper Extremity

Article by Debby Schwartz published in the ASHT Times Jan 2016

Download the entire study (PDF) here >> Static progressive orthoses is a type of mobilization orthosis that therapists use to help their clients regain passive motion in stiff joints and tissues.This type of orthosis incorporates non-elastic components to apply force to the stiff joint or tissue, holding…
Read more

Splint in the Spotlight – Orthoses to Prevent Full Forearm Rotation: The Muenster Orthosis and the Sugar Tong Orthosis

The Muenster and Sugar Tong Orthosis are two useful orthoses indicated to prevent full forearm pronation and supination. Both help to position the forearm in a neutral position so that healing of injured structures can occur.
Read more