The midfielder was replaced at half-time on Friday night after picking up a knock as the Bees ended a run of six league games without a win by beating Burton 3-2.
Kamdjo was replaced by Jon Oster, who made his first appearance since suffering a calf injury in October. He will now be looking for a starting role if Kamdjo does not recover.
Striker Collins John is still sidelined after undergoing hernia surgery last week.
Ishmail Kamara is still recovering from a shoulder operation and fellow striker Steve Kabba remains sidelined by a knee problem.
Ricky Holmes will continue in attack after scoring the first hat-trick for the club in Friday's victory.