Vuckic wasn't named among City's substitutes for the visit of the league leaders to the Northern Commercials Stadium on Boxing Day, with McCall revealing post-match that the Slovenian had missed some training in the build up to the match due to the op.
The 24 year-old is now back in full training, however, and could feature in some part of City's quick-fire double-header against Bury and Northampton Town over the New Year's weekend.
Speaking after the goalless draw with Scunthorpe, McCall said: "He (Haris Vuckic) had a minor operation at the beginning of last week and missed three days' training.
"I just felt that to bring him potentially into a game like this one (Scunthorpe), when it was always going to be high octane and fast paced, might not be the best for him.
"Scunthorpe are a very powerful and hard-working side, and they don't give you any time on the ball.
"It was no major reason to leave him out though, it was just a case of him missing those days in training."