wow... those pieces look pretty big... did they put anything in to replace them? just curious.. cuz i was lucky(now i consider myself that) to just crack my patella in half... geeeeez.
i was reading up on knee orthoscopy and how they are putting(i may have the jargon wrong here so forgive me) a type of liquid bone replacement.. its injected and works with existing bones and builds up much like bones do when assisted by weight bearing exercises..
its amazing you are riding.. .. so good to hear the news.