The 28-year-old Chavancy steps in after 44-times capped Fofana, 29, ruptured his Achilles tendon in Clermont's European Cup win over Exeter on Saturday.
France's 32-man squad will meet this week in the French training centre at Marcoussis outside Paris to prepare for the Six Nations tournament which they last won in 2010.
SQUAD:
Forwards (18): Uini Atonio (La Rochelle), Cyril Baille (Toulouse), Mohamed Boughanmi (La Rochelle), Eddy Ben Arous (Racing 92), Camille Chat (Racing 92), Guilhem Guirado (Toulon/cap), Clément Maynadier (Bordeaux-Bègles), Rabah Slimani (Stade Français), Arthur Iturria (Clermont), Yoann Maestri (Toulouse), Julien Le Devedec (Brive), Sébastien Vahaamahina (Clermont), Louis Picamoles (Northampton/ENG), Kévin Gourdon (La Rochelle), Damien Chouly (Clermont), Loann Goujon (Bordeaux-Bègles), Raphaël Lakafia (Stade Français), Fabien Sanconnie (Brive)