Ahead of their clash at Newcastle tomorrow, Wilder said: "It's a massive blow for us, but it goes alongside a lot of the situations we've had all season.
"It's a really disappointing one. He went to see a surgeon, a specialist, it doesn't require surgery, but obviously that's a big one to miss from a leadership and experience point of view."
On their longer term plans, "Through good times, we all in enjoy it and we're all willing to take that credit when it happens, individually and collectively as a football club, and you have to own and suffer and take responsibility for the times when there's a little bit of pain.
"But certainly...reflection is massive for me: reflection in terms of a training session, reflection in terms of a game, a part of the season or an overall season from everybody. Are we doing the right things medically? Are we doing the right things on the training ground? Are we doing the right things with recruitment? Things that I can control.
"There are certain things we haven't got right as a football club this season. As a club, there is humility, a lot of humble people. We've had a poor season - that's there for all to see.
"We've had to take the words and the criticism but as I said, it doesn't last forever; we'll learn. I'm still learning as a manager, at the ripe old age I am (56), with 1,000 games under my belt."