New wheelchair; redness over bilateral scapula; problem component?

• A. Back height
• B. Seat height
• C. Rear wheel position
• D. Seat angle

Answer: (A)

Redness over the scapulae is a sign of pressure and rubbing from the backrest against the upper back. The back height determines how high the backrest contacts the trunk. If the backrest is set too high, it can press into the scapular region, causing friction and pressure sores when the person sits and moves. That’s why the most likely problem component is the back height—lowering it (or using a back with a better contour) should relieve the scapular pressure. The other options mainly affect leg clearance, weight distribution, or pelvic/seat pressures, not the contact point on the upper back.