This is the best news you'll hear all day.
Having Incognito back at his starting guard spot would give teh running game a big boost. Last year, 57% of the Rams running plays came through the middle, over the Center/Guard positions. Those running plays averaged 4.77 yards per carry, second best in the league at running through that direction.
It sounds like he could be back in time for the Dallas game next week, where we could really use him. The Cowboys' rushing defense has a DVOA of 18.3%, 30th in the league, definitely their weak spot.