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Correct Answer » D
Explanation
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The condition of the lower limbs as shown in photograph above represents Knock knees (Genu valgum).
Knock knees are angular deformities at the knee, in which the head of the deformity points inward. A standing child whose knees touch, but whose ankles do not, is usually said to have knock knees. During early childhood, knock knees are a part of normal growth and development.
CAUSES-
Knock knees are usually part of the normal growth and development of the lower extremities
- Some cases, especially in a child who’s 6 or older, may be a sign of an underlying bone disease, such as osteomalacia or rickets.
- Obesity can contribute to knock knees—or can cause gait (walking) problems that resemble, but aren’t actually, knock knees.
- The condition can occasionally result from an injury to the growth area of the shin bone (tibia), which may result in just one knocked knee.
