Heel Calluses on the Metatarsal Bone
Plantar calluses, or heel calluses, are sometimes caused when one metatarsal bone happens to be longer or lower than the other metatarsal bones. This abnormality in the metatarsal bone causes the bone to come in contact with the ground with more force than it is made to handle. The force of the bone hitting the ground causes the skin underneath the abnormal metatarsal bone to thicken, hence the callus.
Heel calluses can be irritating and can cause a lot of pain.
Heel calluses can often be successfully treated with non-invasive treatments, such shoe modifications or orthotic devices, medications, pads, or trimming or filing of the callus. However, in some severe cases, surgery may be necessary.
One surgery performed for this condition is called an osteotomy. With an osteotomy, the surgeon can help to relieve some of the pressure placed on the metatarsal bone. The procedure consists of the cutting of the metatarsal bone into a "V" shape. After it is cut, the surgeon lifts the bone and aligns it with the other bones. This takes some of the pressure off the area and prevents the formation of a heel or plantar callus.