Thanks Jo*mar. Yes please, please get a second opinion and NOT from someone in the same practice. It is absolutely fair to have someone else take a look and potentially get imaging such as MRI to be sure there is not something obvious in need of attention. Nerve Conduction Study may also be helpful if your inability to move your foot side to side is from a nerve issue. Having another surgery is not what anyone wants to sign up for but complications do happen that sometimes need revision. You don't want to live this and later find out there was something that needed to be addressed.
It is difficult for surgeons to admit that a procedure did not have the planned for outcome. Your doctor probably cannot step far enough away from this to accurately evaluate you. I went through something similar with a nerve injury from an ortho procedure. My doc was convinced it was a success. It took the operative report from another surgeons revision to convince him something had gone wrong.
IF you require another procedure the following has been shown to help in studies from Stanford. 900mg gabapentin pre-op and 100mg minocycline twice per day for one week decrease the chance of chronic pain. Regional anesthesia is beneficial and sometimes people get ketamine during procedure and sympathetic blocks before and/or after.