Surgery is generally successful. However, it is not possible to guarantee that the surgery will meet all of your expectations.
No surgery is without risk. While every attempt is made to minimise these risks, complications can occur. You should consent to undergo surgery only when you are satisfied that the potential risks of surgery are outweighed by the potential benefits bearing in mind your own symptoms and functional limitations. Dr Smith can offer guidance and information, but the final decision is yours.
It is important that your goals and expectations of surgery are well matched to the procedure that is going to be undertaken. More than one type of surgery might be possible and each may have distinct advantages and disadvantages. Please discuss this with Dr Smith.