** Shares of Osteopore OSX.AX rise as much as 30.4% to A$0.015, their highest level since July 29; last up 13%
** Regenerative medicine co announces collaboration with Tan Tock Seng Hospital for the development of a novel implant for avascular necrosis (AVN)
** AVN is a condition where bone tissue dies due to poor blood supply
** About 23.7 mln shares traded, 6.8x the 30-day average
** YTD stock down 62.9%, including current session's move
(Reporting by Ananya Verma in Bengaluru)
((ananya.verma@thomsonreuters.com))