Each level in the back is a different joint. L4-5 in your back is a joint just like your knee or your shoulder. Herniated discs are joint injuries. The most common cause of a herniated disc is a ...

The other is the area just above, called L4-L5. In the low back, the L5-S1 junction is often the site of a problem known as ...

This study included patients with symptoms suggesting lumbar radiculopathy. Patients were recruited by screening and referral from general practitioners, and those with large disc herniation ...