Kevin Chambers says, at about 1:03 in, that if "its not broken, it's definitely fractured. When talking about human bones, broken and fractured are synonymous.
Lexi has hurt her leg after riding. She has it propped on a pillow and Kevin says, "If it's not broken, it's definitely fractured." Broken & fractured are the same thing, and are used interchangeably by orthopedic doctors. He probably should have said, If it's not broken, it's definitely sprained."
When the girls go to watch their school's boys basketball team play early in the movie, they celebrate with one of the players, Jacob Murphy, as the team leaves the court. He's wearing #19 on his jersey. In American high school and college basketball, only the digits 0,1,2,3,4 or 5 can be a part of a player's number. 19 would not be allowed by rule.