If you are having surgery, more than likely Dr. Cheney will recommend a block.
Below is a link from FootCareMD.com that will give you more information on what to expect and why Dr. Cheney recommends the nerve block.
If Dr. Cheney plans on using implants to assist in correcting your foot problem, below is a link from FootCareMD.com that discusses the types of implants used in orthopedic foot & ankle surgery.