The 28-year-old was diagnosed with a laberal tear in the joint after Australia's first Test defeat to the British & Irish Lions in Brisbane on June 22 and he hasn't played since.
The former Reds star should have a better idea how much longer he will be sidelined for later today, with European audiences no doubt hoping he will be available for the Amlin Challenge Cup double header with London Irish next month.
"I am desperate to play my first match but for the moment I do not have the right to: I have to undergo medical tests on Thursday," said Ioane, who scored 11 tries in 35 Tests for the Wallabies and was a Super Rugby winner with the Reds in 2011.
"I came here because Paris is a beautiful city, but, more to the point, to play top level rugby. It's a great challenge."
Stade have started this season without Ioane in some style, with two wins from two in the Amlin Challenge Cup and seven successes in the Top 14. They sit just a point off top spot in the domestic table and finally look as though they could secure a Heineken Cup place through their league form for the first time since the 2009/10 campaign.
Their back-to-back wins in Europe have been a little less impressive, though, with only a late Nicolas Gaurrault try preventing them from slipping to a shock defeat at I Cavalieri Prato last time out. Next up in the Amlin Challenge Cup is a trip to pool leaders London Irish on Sunday, December 8, with the return fixture coming at the Stade Jean Bouin the following Saturday.
Those two ties are expected to decide who will finish top of the pile on Pool 5, with Irish currently a point clear of Stade after picking up maximum points in their first two games.