Episode 97: Curvature of the Spine: What is Normal? What is Not Normal?

When it comes to the spine, most of us envision it as a straight structure. However, the truth is that the spine is designed with intentional curves to enhance its strength and flexibility. In this podcast, Dr. Tony Nalda explores the normal curvatures of the spine, the types of curves, and what happens when these curves deviate from the norm.

Understanding Spinal Curvatures
The spine's natural design includes curves that contribute to its resilience and ability to absorb and distribute stress during movement and compression. In the side view or sagittal alignment, the spine should appear as an elegant S curve, extending from the neck through the lower back.

The two different types of curves are:

1. Lordosis - the forward bend of the spine, either in the cervical or lumbar spine
2. Kyphosis - The backward bend of the spine, typically occurring in the middle part of the spine or thoracic spine

These curves play a crucial role in maintaining the spine's biomechanical function.

Normal Ranges for Curvatures
Each section of the spine has its unique curvature, and it's essential to stay within the normal range to ensure proper biomechanics.

The ideal curvature measurements are:

• Cervical Lordosis - ideal range around 40 degrees, with a normal range between 20 degrees and 40 degrees
• Lumbar Lordosis - Ideal range around 40 degrees, with a normal range between 30 degrees and 60 degrees
• Thoracic Kyphosis - Normal range around 40 degrees, with variations between 20 degrees and 45 degrees

The Impact of Abnormal Curvatures
When the spine deviates from these normal ranges, it can lead to various issues, including adult spinal deformity. This condition arises when the spine loses its natural range and biomechanics, resulting in disruptions that can lead to future complications as we age.

Scoliosis: A Three-Dimensional Problem
An unnatural sideways curvature of the spine, known as scoliosis, presents a three-dimensional challenge. Scoliosis is identified when the curvature exceeds 10 degrees, accompanied by rotation into the concavities. Maintaining the spine's alignment from both the front and side views becomes crucial to prevent complications like spinal degeneration and arthritis.

To address these concerns, Dr. Nalda and his team at the Scoliosis Reduction Center offer proactive treatment models. Their goal is to restore the spine's normal curvatures and remove abnormal curvatures, ensuring natural function is preserved as the body ages. This proactive approach aims to reduce the risk of conditions like adult spinal deformity.

Understanding the normal and abnormal curvatures of the spine is vital for maintaining overall spinal health. If you want to delve deeper into this topic, tune in to Dr. Nalda's podcast for more valuable insights into spinal health and alternative treatments.

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