The calcaneus, or heel bone, plays an important role in walking. A calcaneal osteotomy is a controlled break of the heel bone, performed by a foot and ankle orthopaedic surgeon, to correct deformity of the foot and ankle. 

The heel bone can be realigned to achieve a different orientation, which can correct many different deformities and functional limitations. For example, abnormally high or low arches are deformities that can be addressed with a calcaneal osteotomy. The ultimate goal of all osteotomies is to relieve pain, improve alignment and walking, and reduce the likelihood of arthritis.