Its amazing to see all the differering lengths of rehab and times of immobilization. I ruptured my right quad tendon two weeks ago, and had the repair on March 13. I had extreme pain after surgery (nothing that morphine couldnt take care of). SInce the day after surgery I have had very little pain. I am wieght bearing on the leg, but hte leg must remain staright in an immobiliazer for 4 weeks. I have no pain at night, and minimal pain while walking. I find it hard to believe that some have been told to start flexing the knee right away, especially without supervision.