Custom molded seat is indicated for which condition?

• A. Planar seat
• B. Removable seat insert
• C. Custom molded seat
• D. Bevel front edge of seat

Answer: (C)

The seating surface must match the person’s anatomy to maintain alignment and distribute pressure evenly. A custom molded seat provides a contour that fits the pelvis and thighs exactly, making it ideal when there is significant pelvic asymmetry or deformity (such as pelvic obliquity, scoliosis, or hip/knee contractures) that a flat or generic surface would not accommodate. By shaping around the ischial tuberosities and thighs, it stabilizes posture, improves comfort, and reduces pressure and shear over time—especially important for individuals who sit for longer periods or have conditions like spinal cord injury or cerebral palsy.

Planar seats are flat and don’t accommodate deformities; removable seat inserts are variable but not anatomically contoured to the individual; bevel front edges help with leg clearance but don’t address pelvic contouring.