Final answer:
The right lower extremity is the impaired aspect of the musculoskeletal system mentioned for the patient in the objective systems review.
Step-by-step explanation:
The aspect of the musculoskeletal system that is mentioned as impaired in the objective systems review for the patient described is the right lower extremity. The documentation specifies the patient as having diffuse gangrenous inflammation and infiltration of connective tissue extending from the instep upward to the buttock, as well as complete paralysis of his right-side limbs, indicating severe impairment. The left limbs are reported to be mobile, indicating no impairment on that side.