The spine is almost always under pressure when upright, and therefore prone to the wear-and-tear that leads to osteoarthritis.
This degenerative condition can cause minor to debilitating pain. Understanding how osteoarthritis causes back pain can help patients stop or slow the disease's progression and also reduce pain.
Osteoarthritic Changes in Vertebrae
Facet joints connect the vertebral bone. On the back of each vertebra there are two upper and two lower facet joints. Facets are small, boney projections with smooth, flat surfaces that are normally covered in protective articular cartilage. The facet joint, where two facets meet, is wrapped a fluid-filled sac called a facet capsule.