What is the primary purpose of a trochanter roll during lower-extremity positioning?

• A. To prevent internal rotation
• B. To prevent external rotation and maintain proper alignment of thigh and hip
• C. To straighten the leg
• D. To relieve knee pressure

Answer: (B)

A trochanter roll is used to keep the hip and thigh from rotating outward when a patient is positioned, typically in a supine position. By placing a padded roll along the lateral thigh near the greater trochanter, it provides gentle support that maintains the femur in neutral alignment with the pelvis. This prevents external rotation and helps the leg stay in a straight, stable line with the trunk, reducing risk of hip contractures and promoting safer transfers and positioning. It isn’t meant to straighten the leg by force or to relieve knee pressure; those needs are addressed by other positioning techniques.