Which cast type is used to treat patellar affection and comes in a mold variant?

• A. Cylinder Cast
• B. Cylinder Mold
• C. Thumb Spica Cast
• D. Quadrilateral/Ischial Weight Bearing Cast

Answer: (B)

When treating a patellar problem, immobilization that specifically secures the knee region is important. A molded cylinder cast is designed to follow the contours around the knee and patella, providing a snug fit and stable immobilization that minimizes movement of the patella. This contouring distributes pressure evenly and helps maintain the knee in the desired position, which aids healing and protection of the patellofemoral area.

A plain cylinder cast lacks that knee contour, so it may not control patellar movement as effectively. A thumb spica cast targets the hand and wrist, not the knee. A quadrilateral or ischial weight-bearing cast is used for different regions and weight-bearing needs around the hip and pelvis, not for patellar issues.