It sounds like a verifiable miracle to me, if they have the Xrays from before and after.
When I saw that he was a black ex-slave from Haiti, I wondered if he was related in any way to the famous liberator of the island from Napoleon, Toussaint Louverture. But in that case, Toussaint was his first name.
Pierre Toussaint also happens to be the name of the socialist son of a bitch who is head of the Transit Workers Union of New York City.