Maxwell fractured his fibula and underwent surgery on Saturday. It is understood it happened as he slipped while running in a backyard with the person celebrating the birthday, and Maxwell's leg became trapped, with neither person intoxicated.
In the immediate future Maxwell is ruled out of the one-day series against England which starts on Thursday but he may also miss the entire BBL with Melbourne Stars depending in the recovery timeline which will be known in the coming weeks. It would appear touch and go whether he will have recovered in time to be considered for the Test tour of India which starts in February.
The injury means Maxwell won't have the chance to make a rare Sheffield Shield appearance in early December or feature for Australia A against South Africa.
Stars general manager Blair Crouch said: "Glenn is obviously a huge part of the Melbourne Stars and we wish him well in his recovery. He will continue to be a key part of the club during the start of the season as he works his way back to full fitness and we look forward to seeing him soon."