While running up the stairs to a neighbor 's tree house , Malone caught her foot in between two steps .
While running up the stairs to a neighbor 's tree house , Malone fell backward , snapping her right femur at the growth plate just above the knee .
While running up the stairs to a neighbor 's tree house , Malone caught her foot in between two steps and fell backward , snapping her right femur at the growth plate just above the knee .