common name of the fibula
For the ancient jewelry type, see Fibula (brooch) . The fibula (/ËfÉªbjÊlÉ/) or calf bone is a leg bone located on the lateral side of the tibia, with which it is connected above and below. It is the smaller of the two bones, and, in proportion to its length, the slenderest of all the long bones.or the ancient jewelry type, see Fibula (brooch) . The fibula (/ËfÉªbjÊlÉ/) or calf bone is a leg bone located on the lateral side of the tibia, with which it is connected above and below. It is the smaller of the two bones, and, in proportion to its length, the slenderest of all the long bones.