What describes wedge/positioning cushions for wheelchairs?

• A. Angled or wedge-shaped design that prevents leaning in particular direction
• B. Customarily angled higher posteriorly and low anteriorly which prevents forward leaning
• C. Ideal for individuals prone to slouching and run risk of dislodging their cushion
• D. All of the above

Answer: (D)

Wedge cushions are designed to influence pelvic and trunk alignment and stabilize the seating surface. They are shaped to bias support and reduce unwanted movement. A wedge-shaped design provides lateral support and helps prevent leaning to one side. When the cushion has a higher posterior edge and a lower anterior edge, it creates a slight posterior tilt that counters forward lean and helps keep the spine and pelvis in alignment. For individuals who tend to slump or are at risk of sliding off the seat, these cushions offer secure seating and help maintain contact with the seating surface to prevent dislodgement. Taken together, these features describe wedge/positioning cushions, which are used to promote posture, stability, and comfort in wheelchair seating.