Hello, I have studied your case. definitive treatment for your disease may be knee joint replacement. Total knee joint replacement patient find good difference in mobility after joint replacement. So you can do TKR after consulting joint replacement surgeon, there will not be any problem probably. Post operative Physiotherapy like ultrasound and tens will help, along with knee exercises for early recovery. For further details you can contact on my profile directly http://doctor.healthcaremagic.com/doctors/dr-vaibhav-gandhi/63503 Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. If you are satisfied with answer do not forget to give rating to this answer. Wishing you good health. Take care.