My problem with dropping fat is not typical. I have been able to in the past. My problem is working my lower body in, specifically my left leg and cardio limited to a recumbent bike. It have severe degenerative osteoarthritis in my left knee (I wish I could post a copy of my latest X-ray, the surgeon said it resembled that of an 80 yr old cripple) I recently (Dec 12) had arthroscpopic surgery to remove a loose, and rather large bone spur (approx 3/8" thick and the diameter of a nickel). This was my last effort of relief before total knee replacement, hopefully putting it off anywhere from 1-4 years. Constant pain has become a way of life and I can handle it.
My question is how do I perform an efficient, and effective workout including some kind of cardio to drop fat while working around this old injury. BTW if it matters, my stats are: 36 yrs old, 5 years of consistent training (however not much the past few months due to this)over 15 years of training total, 6'1, 228, 19-20% BF. I am not making any excuses and will do whatever I need to do, so any help from forum experts would go a long way