Bilateral chevron bunion surgery is one of the most reliable bunion removal techniques in use, but the procedure still has possible risks, including common surgical complications, such as infection, deep vein thrombosis and nerve injury. There is also a risk of delayed union, malunion, recurrence and nonunion, says Aetna.
Any surgical procedure carries the risk of complications. Problems may occur with the incision site, and there is always a risk of infection after an operation. Patients who are immobile or moving very little are at risk of developing deep vein thrombosis, or blood clots in the legs. This condition could create a pulmonary embolism, a fatal condition that occurs when a blood clot breaks off and moves into the lungs, explains Foot Education.
Malunion can occur when the bone isn't positioned correctly as it begins to heal, causing an abnormal position of the toe that may require additional surgery. In a small number of cases, the bone may heal too slowly or not heal at all. Less than three percent of bilateral chevron bunion surgeries result in a disruption to the blood supply of the bone and require additional treatment, according to Foot Education. Bunions may reoccur, even when the surgery is performed correctly. Patients who follow their doctor's instructions for recovery minimize their chances of recurrence, says the American Orthopaedic Foot and Ankle Society.