A man with a broken leg cannot stand. He cannot move forward easily. Predators easily consume animals with broken legs.
Teeth are bones, but this symbolism is more specific. See the interpretation of falling teeth/ losing teeth here: Losing teeth in a dream
Broken Bone Meaning Thousands of Years Old
One of the most ancient uses of the symbolism of broken bones occurred when the god of the Hebrews, Jehovah, cursed the nation of Egypt. In the book of Ezekiel, God declared that He will remove the power of Egypt and increase the power of Babylon. Clear references identify a broken arm as a loss of power. A strengthened arm, conversely, foretells the future rise in power of Babylon.
It is interesting to note that, after this declaration, Egypt diminished in power, and remains a weak to mediocre nation to this day. Look at the once great nation of Egypt which ruled as Pharaoh pleased. Compare that to contemporary Egypt. That is the difference between a strong arm and a broken bone.
The Bible is rich in symbolism, parables, and hidden meanings. The wealth of meanings in it's pages flows out and makes the understanding come alive to those who delve into understanding. Who better knows how to communicate with the understanding of man via symbolism than man's own Creator?
The dream interpretation of a broken bone as a loss of power must certainly be considered. This meaning, like all meanings, is not absolute. However, this representation of loss of power fairly easily presents itself in a broken bone.
Dream Interpretation Broken Bones
Broken Bone Dream Meaning