Bunion correction can be accomplished in several different ways, depending on the severity of the problem. An osteotomy of some sort is required: stated in plain English, bunion correction requires cutting of at least one of the foot bones.
Here's an example of one of my patients.
The operation being done is a chevron osteotomy of the distal metatarsal.
The picture below shows the finished surgery. The chevron osteotomy is relatively stable. A single percutaneous pin is usually sufficient fixation. The pin can be removed without anesthesia approximately 4 weeks after surgery.
This type of osteotomy is inherently stable and tends to heal predictably. The pin is taken out one month after the surgery. The following xrays were done two months after surgical correction of her deformity.
Notice the gentle correction of the deformity.
This is what the left foot looks like about 2 months after surgery: at this point the patient was pain free and happy with the appearance.