One-80° Pronosupinator


Dynamic supination and pronation

The One-80° Pronosupinator is an orthosis designed to mobilise the forearm into supination or pronation. It can hold the forearm at end of range rotation whilst allowing free flexion and extension of the elbow. Meanwhile, the patient can actively rotate in the opposite direction for brief function. The One-80° Pronosupinator will reliably stretch the patient straight back to end-of-range.

Strong stretch at end-of-range 

Can’t achieve full supination or pronation? Stiff or uncomfortable at end-of-range? The One-80° Pronosupinator is designed to improve these limitations. Studies show that when conventional therapy fails to achieve full rotation, orthoses (splints) that hold a stretch at the end-of-range produce significant gains in range of motion. We guarantee that it will hold your patient at end-of-range pronation or supination.


Allows normal function

The One-80° Pronosupinator will hold your patient in the desired position (eg. end-of-range supination), but allow them to rotate out of position (eg. pronate), then return them back to a stretched position. It can be applied in either supination or pronation. The patient’s fingers and thumb are free to move and their elbow is free to flex and extend. No other orthosis allows this while maintaining end-of-range rotation.

Full elbow ROM

Your elbow is free to flex (bend) and extend (straighten). This reduces additional stiffness and limits to function.


The standard size fits most people. The standard size is typically suitable for people approximately 152cm (5’2”) to 184cm (6’2”), BMI under 30. The large is suited to people up to 190cm (6’4”). The large size for the taller or bigger person. We will be adding custom sizes at a minimal surcharge later. Consult our size guide for further information

The One-80˚  Pronosupinator is patented internationally.