Musculoskeletal anatomy · USMLE Step 1

A patient has difficulty with lateral rotation of the hip. Which muscle is least likely to be involved?

  1. Piriformis
  2. Obturator internus
  3. Quadratus femoris
  4. Gluteus minimus
Show answer and explanation

Correct answer: Gluteus minimus

Gluteus minimus primarily assists with hip abduction and internal rotation. The other listed muscles are lateral rotators of the hip.

Difficulty: Medium Question 19 of 20

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