Understanding Lumbar Back Pain Causes and Management

Back Pain Mechanics and Symptoms

Back pain often occurs upon movement, resulting from a shift in the core of the spine. Cracks in the fibrous ring surrounding the core allow it to move into these fissures, causing sharp pain because nerve endings reside in the ring. This movement can trigger a reflex contraction of the muscles, which blocks the lumbar spine.

Low Back Pain Treatment

Treatment for low back pain is managed by a doctor. In the acute phase, rest is crucial to avoid pain aggravation. Once the acute phase passes, maintaining an exercise program is desirable for prevention, helping to sustain the health status of the joint and muscles.

Aggravating Factors

Several factors can worsen back pain:

• The natural aging of the intervertebral disc over the years.
• Weight: Excess weight is a significant factor, overloading the column. The lumbar vertebrae bear the full weight, making this area prone to problems. Overweight accelerates this process.
• Common spinal deformities (kyphosis, lordosis, or scoliosis) increase the risk of disc impingement accidents.

Disc Injury Frequency and Types

Damaged intervertebral discs are the structures most frequently causing discomfort or pain in the spine. The most commonly affected discs are those corresponding to the last lumbar vertebrae (L4 - L5) and the first sacral vertebra (S1).

Disc Movement During Flexion

When the trunk is flexed, the vertebrae move closer at the front and separate at the back. The disc's core tends to move backward. If the surrounding fibrous ring is compromised with fissures or cracks, a disc injury can occur.

Disc Accident Grades

Disc accidents can manifest in three grades, depending on the injury's severity:

1. The disc fissure: This involves a tearing of the fibrous envelope of the disc.
2. The disc protrusion: This is a deformation where the fibrous material is pushed outward by the impact of the gelatinous nucleus against it.
3. The herniated disc: This occurs when the annulus ruptures, and the core material escapes. The fundamental consequence arises if the nucleus presses upon a nerve structure.