User blog comment:Monkey.D.Me/One Piece Chapter 631 FAQ (in my opinion)/@comment-1741295-20110707072424/@comment-3075024-20110707192915

well its been 2 years so he might have gotten a better doctor and got the wheel removed or he would have cut the wheel to his head's level so no one can see it if he wears a hat. there are so many possibilities but no strong evidence but still to me its 100% Shiki.