The document discusses three common types of fractures: spiral fractures, which result from opposing torque on the bone and are common in sports injuries; comminuted fractures, where the bone is shattered into many pieces requiring surgical repair; and greenstick fractures, which get their name from resembling the behavior of green wood and are common in children as their bones are not fully calcified. Spiral fractures heal slowly over 6 months, while comminuted and greenstick fractures also require casting or splinting with monitoring by a physician.