You can also try a popular Outlook recovery tool called Advanced
Outlook Repair to repair your PST file. It is a powerful tool to
recover messages, folders and other objects from corrupt or damaged
Microsoft Outlook PST files.

Detailed information about Advanced Outlook Repair can be found at
http://www.datanumen.com/aor/

And you can also download a free demo version at http://www.datanumen.com/aor/aor.exe
Good luck!
Wangdong