How is your relationship with you Doc? If you can be honest with him go ahead and ask his advice.
I recently had knee surgery , i never admmitted to gear use but the doc advised me that if i was using to not stop until about a month after surgery
I also got a advise from an old pro that deca...
When your on gear you can hit you bi's twice week as long a you get plenty of recovery time. I say 2-3 days. I used to hit bis mondays and fridays. You really don't have to do alot of sets or reps bc its such a small muscle group and they get hit pretty good when you do back also.
i just blew out my knee last week, i know excatly how you feel bro. I ripped my patella tendon in half. I have read that if you run nandrolon during recovery it will help you out alot.