Bunion and Hammertoe Surgery - Toronto Podiatrist br Sheldon Nadal Doctor of Podiatric Medicinebr discusses the symptoms, causes and treatments for Bunions and Hammertoes.br Bunions are progressive bone deformities of the foot that often cause recurring or chronic inflammation, irritation, and pain that require surgical correction. Surgical removal of a bunion is called a bunionectomy. However, there are multiple types of bunionectomies, each designed to resolve different structural changes caused by the deformity.