Back pain affects an estimated 80% of the population. It’s second only to the common cold for lost time at work. An intervetebral disc rupture (bulging disc) is only one cause for severe back pain. This disorder can produce gradual or a sudden onset of back pain. The pain can also radiate either into the arms or legs depending on the disc level on the spine. It can also be accompanied with numbness, tingling and muscle spasms. Needless to say, this can make it very difficult to perform every day functional activities such as dressing and walking.
Let’s take a look at the spine.
The spine is composed of 24 separate bones – seve cervical (neck), 12 thoracic (chest), and five lumbar (low back) – called vertebral bodies, and two fused bones at the base of the spine called the sacrum and the coccyx. Between each of these vertebral bones is an intervertebral disc, which is a gelatin-filled structure that separates and provides shock absorption for the vertebral bones. The spinal cord, which controls movement and sensation of the arms and legs, travels through a canal within the vertebral column (spine). The nerves exit from each level of the spine and travel into the arms and legs to provide motor (movement) and sensory function.
You may hear of disc injuries being referred to as a slipped disc, bulging disc, herniated disc, or disc protrusion. When a disc bulges, the gelatin-filled center pushes outward against the cord. This can cause pain, numbness, tingling, and weakness in the legs if a lumbar disc is involved, and in the arms if a cervical disc is involved. There are varying stages of disc injury, ranging from a mild bulge to complete herniation of the disc contents. After a physician’s evaluation and completion of the appropriate diagnostic studies, physical therapy can be very beneficial, particularly if the patient is treated during the early onset of symptoms. There are numerous occasions where physical therapy is successful in treating disc problems and preventing surgery.