What Does A Finger Dying Caused By Whitening Mean?

My husband was injured at work, broke the tip of his middle finger, and he has already been told he needs to have surgery and he will be having it in three weeks. They will be putting a pin in through his nail to hold it in place. But as of yesterday his finger started turning white. What does that mean? They said there is a possibility of the finger dying, is that what is happening?