Which design feature helps reduce pressure points in an orthosis?

• A. Flare and round edges help reduce pressure points
• B. Edges should be sharp to stabilize contact
• C. Edges should be taped away
• D. Edge design has no effect on comfort

Answer: (A)

Flare and rounded edges reduce pressure points by distributing the load more evenly where the orthosis contacts the skin. When edges are flared and rounded, they follow the limb’s contours and avoid digging into small areas, which lowers localized pressure and reduces skin shear that can lead to irritation or ulcers. Sharp edges concentrate forces on tiny skin areas and increase friction, raising the risk of tissue damage. Taping edges away doesn’t reliably change how the load is distributed and can create new points of discomfort or failure. Edge design clearly affects comfort and skin health, so proper edge shaping is a key factor in preventing pressure points.