Thanks, everyone for the well wishes. This is really frustrating as well as a bit discouraging. As the old saying goes, "Time heals all wounds, and wounds all heels", and I guess this applies to me on both counts .
My surgeon appears to be top-notch, but I can say that I am a bit concerned. He has no history of problems. His nurse said this was only the second failure of this type surgery she had seen in the last eight years in his employ. The Dr. called yesterday and said it appeared I had contracted a low-grade infection (determined from the blood tests he just ran) which caused the reversal in my recovery about mid-way. Problem is now it looks like a possibility of three more surgeries! One to clean out the infection, one to take out the hardware (screws) from the original operation, and one more to install new hardware. Not looking too good for complete recovery any time soon, sigh...
Just have to keep on keepin' on...
"There will be days when the fishing is better than one's most optimistic forecast, others when it is far worse. Either is a gain over just staying home."
Roderick Haig-Brown, "Fisherman's Spring"