Hello, Sorry to hear the trouble you faced with no help. Coming straight to pinterest, what would have made a big help to us was that the MRI reports was explained here. But well since it s not there we have to look other options to workout. Since you mentioned you get pain while straightening the knee just behind the cap I suspect it to be patellofemoral arthritis or chondromalacia patella. For finding if it is chondromalacia patella, we need to take the x-ray in the aeroplane view in knee flexed position. This will help us determine that there is maltracking of patella. For chondromalacia patella the exercise is directed towards the correction of the patella track using vmo exercise. Also the exercise for other leg too along with the adjacent joints of the injured led - like the hip and ankle. Most of the cases recover if the diagnosis is made and then treated rather treating in general as static Quadriceps and static hamstring with SLR. If it turns out to the patello-femoral arthritis than we need to look for a set of exercise which makes the equal distribution of the weight when walking. As without having a gait analysis it will be difficult to figure out the muscles involved or the ones which are weaker. In many a times without a diagnosis also there are symptomatic treatment available at most times but when they fail its duty of every medical professional to find the cause and then treat. In my clinical practice of 12 years most patients have walked with similar complains. But never made a decision in general to treat but more precise to problem oriented and with considering all the parameters a therapy plan is made to get the maximum outcome score and fortunately we were able to achieve till now. I was wondering that what physical therapy have you been? Was it TENS therapy along with Ultrasound therapy? And the exercise like static Quadriceps and static hamstring? It would have been good if you had mentioned in detail so we could have got more insights. In your case I will offer a set of exercise to try out and please do let me know if that has helped you over a period of time. 1. Icing the tender point ( only it you are non diabetic) 2. Internal rotation of hip and both legs up holding for 10 counts each 3. Lying on back with legs apart of 2 ft and doing knee flexion and extension. Where during flexion the feet is still 1 ft apart. 4. Lying on the stomach and lift the leg up and getting to other side. This is called as a leg cross over exercise. 5. Balance board training. 6. Reverse walking. I am sure this set of exercise if done properly should help you to avoid pain while extending the knee joint. Please feel free to contact me over facetime if you have any other doubts with the exercise So I can assist you in teaching one. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist