Group XVIII. Function: Outward rotation of thigh and stabilization of hip joint. Pelvic girdle group 3: Pyriformis; gemellus; obturator; quadratus femoris (DC 5318)

Rating levels

• 30% — This severe rating applies when you have significant damage to the deep hip muscles that help you rotate your leg outward and keep your hip stable when walking or standing. These muscles (pyriformis, gemellus, obturator, and quadratus femoris) are located deep in your buttock and hip area, and when severely injured, you'll experience major difficulty turning your leg outward, persistent pain, and noticeable instability or weakness in your hip joint that substantially limits your daily activities.
• 20% — You have moderately severe damage to the deep hip muscles that help you rotate your leg outward and keep your hip joint stable when you walk or stand. These muscles (pyriformis, gemellus, obturator, and quadratus femoris) are located deep in your buttock and hip area, and when they're significantly injured, you'll experience noticeable difficulty with activities like getting out of a car, climbing stairs, or turning your leg outward, along with pain and weakness that interferes with daily activities but doesn't completely disable you.
• 10% — You have moderate muscle damage or weakness in one or more of the deep hip muscles that help you rotate your leg outward and keep your hip stable when walking or standing. This means you experience noticeable pain, stiffness, or difficulty with movements like turning your leg outward, climbing stairs, or maintaining balance, but you can still perform most daily activities with some limitation.
• 0% — You have very minor muscle damage in your deep hip muscles that help you rotate your leg outward and keep your hip stable when walking. The injury causes only slight symptoms like occasional mild discomfort or very minor weakness, but doesn't significantly interfere with your daily activities or movement.