The midfielder was in terrific form early on for Stuart Pearce's side, only to see him taken off in pain against East Midlands rivals Derby County.
The midfielder believes however the circumstances of the game being televised has helped him out, even describing the way his misfortune transpired as 'lucky.'
He told the Nottingham Post: "I am doing something wrong, in the way that I move. Luckily the game was on television and the physio staff were able to look at various angles of how it happened.
"There are things you can do to make sure that does not happen again."
To describe it in such a way is remarkable, and shows that mentally he is prepared for the tough road to recovery which lies ahead, for he has already had to do it twice before.
Cohen added that this time he is going to America to see a specialist, determined to change his approach, to yield different results in terms of staying fit.
Prior to his injury Cohen was ranking in the top players in the Championship in terms of key passes per game, and without him, Forest's own excellent form has tailed off.
It's unlikely he will play again this season, but if he is fortunate, his teammates may yet reward him with Premier League football the next, if they can turn their results around.