The Republic of Ireland international, who has been sidelined since sustaining the injury in September, made his comeback in a 65-minute appearance for the Under-21s in a 0-0 draw with Reading on Sunday.
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The 41-year-old told the club's official website: "I thought he did great. He's come through the game unscathed so that's a plus point and it's good for him that he's come through it and it's a step in the right direction for his recovery.
"It's important give or take, Phil's news. It was important to get Darron back and give the manager another selection dilemma.
"It makes it more important now that Phil has had the operation but it's just good to get Darron back playing again."
Gibson has made 18 appearances for Everton since joining from Manchester United in January, scoring once.