Ramsey's right leg was shattered following a tackle by one-time England international Ryan Shawcross.
"All week I had never seen a manager so desperate to win a game of football,it was bordering out of control.
"That particular game it was very much 'lads, don't forget, be aggressive in the tackle, dominate your man. That was the message.
"And the build-up to the game contributed to this moment.
"I heard the crack from the bench. I heard the screaming."
Kitson said he felt "totally embarrassed" by the incident and did not know where to look when a horrified Arsene Wenger looked at him and the Stoke backroom staff sitting on the bench.