Hi, As mentioned in history about meniscus surgery, it such that the part of broken meniscus is removed and now the muscles of the knee aren t stable to hold the knee joint in place and maintain the required space between the femur and the tibia. It is not a conditional that people who undergo meniscus or any other ligament surgery of knee lands up in the OA knee. I have seen cases with Meniscus or ACL surgeries and all are doing perfectly well. None of them are having any signs of ageing. I made a continuous follow-up for the last 12 years and none have issues. the only thing they ask is - long to do exercise? well I only advice them to keep doing as much as they can. N no signs of any pains in the knee or any adjacent joints. Coming back to your case. The pain in the knee is due to the lack of strength in the muscles of the knee. Which needs an definite attention. I would advice you to start taking sessions under a competitive physiotherapist so that the required strength is achieved. Also, I will recommend you to do reverse walking to strengthen the quadriceps and lift the leg up in the lying position for strengthening the gluteus muscle. Rest you can try out with pilates, balance board training and resistance band training. I am sure you can do well and may not need TKR. As you must have heard that most sports person gets ligament injuries. how many of then have undergone knee replacement. I think the ratio is too low because they take the best training so I do provide my clients the best service so future complications don t arise. Hope you will take this in the positive way and make a good call for the best rehabilitation. Anything and everything is possible, we just need some determination. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist