The Room 208 Blog

The cuboid is a smaller, however extremely important bone around the outside of the feet between your heel bone and the fifth metatarsal bone. It is deemed an critical bone as it acts as a pulley for the tendon of a muscle from the lower-leg (peroneus longus) which passes underneath it on its route to the other aspect on the feet. The muscle is a very powerful muscle, hence the cuboid bone needs to be very steady if it is to behave as an efficient lever. If the bone moves in the course of contraction of this tendon, then your joints round the bone get stretched, making what is called cuboid syndrome.