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Less common causes of posterior knee pain. Referred pain is where an injury or problem elsewhere causes pain at the back of the knee. This can be from the lower back or lumbar spine and pain is referred down into the knee through the sciatic nerve. Or pain from the patellofemoral joint or between the kneecap and thigh bone can also refer pain into the back of the knee.
Yes. Probably 95% of knee pain caused by arthritis is osteoarthritis, which is caused by âwear and tearâ on the joints. Other types, like rheumatoid arthritis, are much less common causes of knee... Other conditions that cause knee pain include: 1  Bursitis.2  A bursa is a sac of fluid that resides below the skin overlying your joints. 3  Overuse, a fall, or repeated bending and kneeling can irritate the bursa overlying the knee cap (patella), causing pain and swelling.ther types, like rheumatoid arthritis, are much less common causes of knee... Other conditions that cause knee pain include: 1  Bursitis. 2  A bursa is a sac of fluid that resides below the skin overlying your joints.