I am a 23 year old male who is slated to have surgery for a meniscus repair next week.  My uncle has had the same surgery and he continued to have the same problems after the repair.  Why did his not heal properly?  Should I be concerned as well?

The failure rate for a meniscus repair is 9.8 per cent according to this study. The failure rate for a meniscal repair and ACL reconstruction is 8.2 per cent.