My husband had a discectomy on his neck tuesday. how long will the post-op pain last?

A few Weeks: He should be better in a couple of weeks.

A few weeks: The initial pain should start to improve over the next week or two. However, there may be continued residual pain that slowly diminishes over the next month or so. It also depends on the approach. If it was done from the front versus the back of the neck. The front approach improves faster typically.