Browse our Health Library to learn about treatments, conditions, and how Cedars-Sinai can support your healthcare needs. Sciatica, also called lumbar radiculopathy, is a pain that originates along your sciatic nerve, the largest nerve in the body. The pain extends from the back of your pelvis down the back of your thigh. Scoliosis is a condition that causes the spine to curve sideways. It can develop during childhood or adolescence and can range from mild to severe. This video explains how scoliosis occurs and what treatments are available. A spine affected by scoliosis shows a sideways curvature and a rotation of the vertebrae, giving the appearance that the person is leaning to one side. Scoliosis is a deformity of the backbone (spine). It's when the spine has a side-to-side curve. The curve of the spine measures 10 degrees or more. Sever disease occurs when a tendon in one or both of your child's heels becomes injured and inflamed. A dislocated shoulder means the upper arm bone (humerus) has moved out of the shoulder joint. It can cause pain, swelling, numbness and trouble moving the shoulder. Detailed information on shoulder pain and the most common types of shoulder problemsShoulder tendonitis is an inflammation of your rotator cuff or biceps tendon. Read on for details about this condition. Spinal stenosis is a condition in which the spinal canal narrows and pinches the nerves, resulting in back and leg pain. Spinal stenosis often occurs in older adults, although younger people who are born with a small spinal canal may ...