Patellar tendonitis after ACL reconstruction?

Hi:

I had an ACL reconstruction in my left knee on November 15, 2004. The orthopedic surgeon took the bone - patellar tendon - bone graft from my left knee. I had no patellar tendonitis with my left patellar tendon.

I had an ACL revision reconstruction in my left knee on August 3, 2010. Another orthopedic surgeon took the bone - patellar tendon - bone graft from my right knee.

At the present time, almost 9 months after the bone - patellar tendon - bone graft was taken from the right knee, I have patellar tendonitis with my right patellar tendon. I do not understand why I have patellar tendonitis after the graft was taken from the healthy right knee when I had no patellar tendonitis after the graft was taken from the injured left knee.

This patellar tendonitis hurts a lot. I have been doing physical therapy since my last surgery in August 2010. At first, it seemed to help with the patellar tendonitis pain, but now it does not help anymore. When the physical therapist uses what I call the "ultrasound machine", my patellar tendon hurts even more, which is strange.

I also tried wearing a brace designed for patellar tendonitis, but it is not very helpful. Local corticosteroids (gel) are not helpful either. I am allergic to oral NSAIDs.

I do not know what to do to stop this pain anymore, apart from taking my morphine capsules, which work, but only for a few hours. I heard there exists a surgery for patellar tendonitis pain. Is this true? Internet has a lot of information about surgery for a completely torn patellar tendon, but nothing about surgery for patellar tendonitis. Does it mean orthopedic surgeons do not operate on patellar tendonitis, except if the patellar tendon is fully broken?

Thanks for your information.