Milito is out for the season after suffering the setback against Europa League opponents FC Cluj.
"I don't think that this is the last of Milito," the former Napoli player told Calcio News 24. "It is rash to say that.
"At the age of 35 I suffered a really serious knee injury, but I was able to recover in the space of three months.
"I'm no wizard, so I'm proof that it can be done. The determination of the player will now be very important - but he won't lack motivation.
"These are difficult moments, that is for sure, and I wish Diego the best because he is a great player and Inter need him."