In the knee disability options, which is a correct rating for the described case?

• A. 12 percent
• B. 19 percent
• C. 22 percent
• D. 25 percent

Answer: (C)

In this kind of assessment, the knee permanent impairment is determined using a standard impairment schedule that converts objective deficits into a whole-person impairment percentage. The rating reflects how much the knee injury limits function, not how long the person was off work or how many symptoms they have. When the described findings—such as the specific loss of motion and functional restrictions in the knee—fit the category on the schedule that corresponds to a 22% whole-person impairment, that is the rating you apply. The other numbers would require either milder or more severe impairment than the case shows, so they don’t align with the documented deficits. Remember, for a single knee case, you use the knee’s impairment rating as the final value unless there are additional body-part impairments to combine.