An “aeroplane splint” is another term for a Shoulder Abduction Orthosis (SAO) or a shoulder brace designed to maintain the shoulder joint in an abducted (outward) position. This type of orthosis is often used postoperatively or in the conservative management of certain shoulder injuries or conditions.

The primary purpose of a Shoulder Abduction Orthosis is to position the shoulder joint in a specific abducted angle, often following surgery or to manage conditions like shoulder dislocations or instability.

These orthoses are often made from materials that provide both support and comfort, such as breathable fabrics or adjustable strapping systems.

Shoulder abduction orthoses are commonly used after certain surgical procedures, such as rotator cuff repairs or shoulder stabilizations.

Physical therapy exercises and other interventions may accompany the use of the orthosis to promote healing and restore function.