What is the purpose of trochanter rolls in postoperative care for lower extremity procedures?

• A. Maintain knee extension
• B. Prevent legs from turning out
• C. Prevent hip flexion
• D. Promote leg external rotation

Answer: (B)

Trochanter rolls are used to keep the leg in proper alignment by preventing external rotation of the hip after lower-extremity surgery. When a patient is lying supine postoperatively, the leg tends to roll outward due to gravity and muscle relaxation. A roll placed along the outer thigh near the hip acts as a tactile cue and physical barrier to keep the thigh and leg in a neutral, midline position. This helps protect the operative site, reduce stress on the incision, and lower the risk of complications like dislocation after hip procedures. It’s not about maintaining knee extension or preventing hip flexion, nor does it purposefully promote external rotation.