Must be a day for browsing and I found this in a British report on a YAK-52 crash in 2011 - Report is in after a May 2011 accident and a final report by September 2012 - just 16 months:
Post-mortem examination
A specialist aviation pathologist who carried out post‑mortem examination of both pilots found that the crash forces were outside the range of human tolerance and that both had suffered severe multiple injuries on impact. Whilst neither exhibited classical control‑type injuries to their hands, the instructor had suffered ankle fractures which might indicate his feet were on the rudder pedals at impact. Toxicology results were negative other than for caffeine.
Notes on these at:
YAK ? 52 Britain cms_resources | Assistance to the Aviation Industry