What should I do if my knee hurts when I walk down the stairs and the radiographs don’t show anything?

There are many reasons for downstairs knee pain, but the most common causes are knee arthritis, mild meniscus injuries, ligament strains, etc. According to the history of the disease and the condition of the appropriate treatment, such as general treatment, physical therapy, drug treatment and surgical treatment.
1. Knee arthritis: it is inflammation of the knee joint caused by various reasons, such as synovitis, rheumatoid arthritis, rheumatoid arthritis, etc. It is necessary to pay attention to rest, and avoid weight bearing and strenuous exercise. The pain is severe can be given ibuprofen and other anti-inflammatory pain medication, can also be injected into the joint cavity of sodium vitrate and other treatments to alleviate the symptoms. If necessary, it can be combined with localized hot compresses and other physical therapy.
2. Meniscus injury: mild meniscus injury can lead to downstairs knee pain, but simple radiographs can be no abnormality. In addition to rest, local cold compresses can be applied in the acute stage, local hot compresses can be applied in the relieving stage, drugs affecting the cartilage such as glucosamine can be taken, and arthroscopic meniscus repair can be done if necessary.
3. Ligament strain: there is a history of trauma, ligament strain film is mostly negative. Mild injuries can be improved after rest, but serious ligament tear or rupture, need surgery to repair, during the period of severe pain can take diclofenac sodium and other painkillers.
It is recommended that patients go to the hospital, complete the auxiliary examination, in order to clarify the condition, the professional physician to give appropriate treatment for the condition, the drug needs to be used under the guidance of a professional physician.