Which type of orthosis is designed to provide support and immobilization of the spine?

The lumbo-sacral orthosis is specifically designed to provide support and immobilization of the lumbar and sacral regions of the spine. It typically consists of a rigid structure that encircles the lower trunk and is used to stabilize the spine following injury, surgery, or in conditions such as scoliosis. This type of orthosis helps restrict movement to promote healing and improve spinal alignment, making it particularly effective for patients who require immobilization of the spinal region during recovery.

The other options serve different purposes. A shoulder immobilizer is meant for the upper extremity, specifically to restrict movement at the shoulder joint. A wrist support is used to stabilize and support the wrist, while a thigh cuff orthosis is designed for the thigh area, focusing on the femur and hip joint rather than the spine. Therefore, these alternatives do not provide the spinal support and immobilization that a lumbo-sacral orthosis does.