[Multiple erosive osteoarthritis of the lumbar spine associated with a cystic node of L5]

Osteoarthritis of the spine can predominate on the zygapophyseal joints or on the discovertebral space. In this last localization, it can be characterized by superficial erosions or a cystic lesion into the vertebral body with densification of the vertebral end-plates and small osteophytes. We present the case of an 83 years-old woman with an erosive osteoarthritis at 3 levels of the lumbar spine associated with a large cystic node of L5, revealed by a low energy fall. The absence of fever, a history of tuberculosis, inflammation at the laboratory tests and the aspect of the CT scan allowed the avoidance of sophisticated or invasive explorations. Evolution was good with medical treatment, making unnecessary immobilization into a brace.