Patient: I found a year ago that after exercise, the knee joint is weak and painful going up and down the stairs, but it does not affect normal work, the left knee is more serious, took x-ray doctor said no problem, but walking more knee uncomfortable (not very painful, just feel put there are uncomfortable), night rest are affected. The doctor at the first visit took a look at the film, laid down and did the bent leg lift and drop several times and diagnosed the patella as aging. Then went to Jishuitan Hospital, the doctor looked at the film diagnosis is chondromalacia patella arthritis, see the glucose and wind wind and active tablets, eat two months effect is not obvious. In February of this year, I went to the Wangjing Hospital Bone and Joint Institute, where I had an acupuncture procedure and five injections of sodium glutamate into my joints, and I have been taking medication (Gluconi and Osteoporosis). I still can’t walk long distances and I have pain on the lower side of my knee when I’m not walking. I can do the zigzag jump. Treatment request: I want to walk long distances as I prefer to travel in the mountains. A: Patellar chondromalacia is an injury to the patellar cartilage that induces pain during knee flexion movements, often noticeable during up and down stairs movements. Some patients also experience knee ringing, weakness of the knee joint because of pain, and playing softness. The pain worsens after walking long distances. But not all people with these symptoms have chondromalacia patellae – chondromalacia patellae is mild damage to the patella, a set of symptoms caused by the softening of the articular cartilage of the patella. There are several conditions in which treatment for chondromalacia patellae will not yield good results: one condition is knee pain caused by osteoporosis. Many women develop patellar tenderness around the time of menopause, which is closely related to hormone levels and osteoporosis. In this case, even if the diagnosis of patellar tenderness is very clear, treatment with patellar tenderness medication alone is often ineffective due to the combination of conditions such as osteoporosis. Another situation is when the patellar damage exceeds the degree of tenderness. If the joint surface between the patella and the femur develops a bony bulge (bone spur), a diagnosis of patellofemoral arthrosis, that is, patellofemoral arthritis, should be made, and it is unlikely that drug therapy will result in complete recovery. Application of chondrotrophic drugs (glucagon, viguride, sodium hyaluronate) in this case is less effective. In case of simple patellar tenderness – there is no bony bulge to be found on X-rays! I think your case may fall into this category. There are a number of conditions that are often misdiagnosed as patellar tenderness: lateral meniscal injury, which can be painful and popping on the outer underside of the patella; medial crease entrapment syndrome, which can have patellar tenderness-like symptoms on the medial side of the patella; peripatellar synovitis and fat pad hyperplasia, which are also very similar to patellar tenderness symptoms