Osteophytes form naturally on the back of the spine as a person ages and are a clinical sign of degeneration in the spine. In this case, the osteophytes are commonly not the source of back pains, but instead are a sign of an underlying problem. However, osteophytes on the spine can impinge on nerves that leave the spine for other parts of the body. This impingement can cause pain in both upper and lower limbs and a numbness or tingling sensations in the hands and feet because the nerves are supplying sensation to their dermatomes.