What don't you understand?
Well because the human body was designed to be symmetrical, If this were to happen the child would live until the body compensates, with an uneven gait. This uneven gait can affect the curvature of the spine if it goes on long enough causing exaggerated curvatures, called Scoliosis.
Here is an interesting fact though, a fracture through the epiphyseal plate of developing children when broken can actually stop growth of the bone causing almost the exact same thing.
Answer:
Quackery is defined as a dishonest practice from someone who claims to have knowledge and/or skill in a particular subject or <u>field</u>. This is most common in the medical field.
Fraud, on the other hand, is wrongful (illegal) or dishonest practice with the intent on gaining financial gain.
The difference between the two is that quackery typically only applies to medical practices, whereas fraud can apply to just about anyone who is involved in any sort of deceptive and/or fraudulent practice.