Which option lists the three basic elements of rating for knee disability?

Which option lists the three basic elements of rating for knee disability?

• A. Limitation of flexion and extension, instability and thigh atrophy.
• B. Limitation of flexion and extension, instability and calf atrophy.
• C. Adduction, abduction and calf atrophy.
• D. Adduction, abduction and thigh atrophy.

Answer: (B)

When rating knee disability, three factors are considered: loss of motion (flexion and extension), instability, and muscle atrophy around the knee, typically calf atrophy from disuse. The option that lists limitation of flexion and extension, instability, and calf atrophy matches this framework. Choices that include adduction/abduction (movements not central to knee rating) or thigh atrophy don’t align with the standard knee-rating elements.

When rating knee disability, three factors are considered: loss of motion (flexion and extension), instability, and muscle atrophy around the knee, typically calf atrophy from disuse. The option that lists limitation of flexion and extension, instability, and calf atrophy matches this framework. Choices that include adduction/abduction (movements not central to knee rating) or thigh atrophy don’t align with the standard knee-rating elements.