Which of the following is NOT a benefit of using a humeral fx Sarmiento orthosis?

The benefit that is not associated with the use of a humeral fracture Sarmiento orthosis is the enhancement of muscle strength through immobilization. The Sarmiento orthosis is designed to allow for partial immobilization while still permitting some motion at the elbow and shoulder joints, which helps to maintain circulation, reduce stiffness, and promote the healing process.

When a fractured humerus is treated with this type of orthosis, the primary focus is on balancing immobilization with controlled motion. This balance helps to minimize stiffness by allowing for some degree of elbow joint movement. Additionally, by maintaining some mobility and promoting micro-movements at the fracture site, the orthosis can enhance blood circulation and ultimately aid the healing process.

However, immobilization, as suggested in the option regarding muscle strength, typically decreases muscle activation and can lead to strength deficits in the muscles surrounding the joint. Therefore, rather than enhancing muscle strength, the Sarmiento orthosis aims to prevent further injury while facilitating mobility and healing, making muscle strength enhancement through immobilization an inaccurate representation of its benefits.