Spinal Curvature Guide: What Are the Differences Between Scoliosis, Kyphosis and Lordosis?

When you look at a healthy spine from behind, you see a straight line extending from the skull to the tailbone. However, when viewed from the side, our spine is not straight; there are natural curves (bends) in the neck, back and waist to maintain body balance and absorb shocks.

One of the most searched health terms on Google, "Scoliosis", is actually a general umbrella term. Although most of our patients come with the complaint that "my child has a curvature," the direction and angle of this curvature determines the name of the condition (Scoliosis or Kyphosis?) and the treatment plan.

Today, we are clarifying concepts that are often confused in spinal surgery and embarking on a scientific journey into the anatomical world of spinal curvature.

1. What are the types of spinal curvature?

Medically, we classify spinal deformities (abnormalities) into three categories. Proper treatment begins with a proper diagnosis.

• Scoliosis (Sideways Curvature): It is the curvature of the spine to the right or left in the shape of the letters "C" or "S". It is not just lateral bending, but also rotation of the spine around its own axis. It is most commonly seen during adolescence (Adolescent Idiopathic Scoliosis).
• Kyphosis (Forward Curvature – Hunchback): It is an increase in the natural outward curve of the back region (20-45 degrees is normal) to over 50-60 degrees. The person exhibits a hunched posture, leaning forward.
• Lordosis (Inward Curvature – Hollow Back): It is an excessive enlargement of the natural hollow in the waist area. It can usually develop as a result of weak abdominal muscles or secondary to hip problems.

2. How to Detect Curvature? Simple Home Check

Scoliosis may not cause pain, especially in children during their growth phase. Therefore, parental observation is the most important diagnostic tool. The simplest test you can perform at home is the Adam's Forward Bend Test.

Step-by-Step Check:

1. Have your child bend forward (as if touching the floor) with their feet together and knees unbent.
2. Go right behind it and look at the back surface.
3. If one side of your back (usually the right side) is higher than the other, forming a hump-like protrusion, this is a sign of spinal rotation and possible scoliosis.

Other Symptoms:

• One shoulder being lower than the other.
• Asymmetry of the lumbar curves (one side appearing straighter, the other side appearing more concave).
• Clothes not fitting the body properly, constantly slipping to one side.

3. Does Every Curvature Require Surgery? (Degrees and Treatment)

The word "surgery" is our patients' greatest fear. However, only a very small proportion of patients diagnosed with spinal curvature require surgery. The treatment plan is shaped entirely by the degree of curvature (Cobb Angle) and the individual's growth potential.

Here is our scientific treatment algorithm:

• 0–20 Degrees (Observation and Exercise): This group is generally a "follow-up" group. No special treatment (corset or surgery) is required. Sports such as swimming and Pilates, which strengthen the back and abdominal muscles, are recommended, and progress is monitored with X-rays every six months.
• 20–40 Degrees (Brace Treatment): If the child is still growing and the curvature exceeds 20 degrees, custom-made, three-dimensional braces are used to prevent the curvature from worsening. The brace does not eliminate the curvature, but it slows its progression.Note: Brace treatment has no effect on correction in adults whose growth is complete.
• 45–50 Degrees and Above (Surgical Assessment): When the curvature exceeds these levels, both cosmetic issues increase and health risks such as reduced lung capacity in later years arise. At this point, Scoliosis Surgery (Fusion or Cable Method) becomes a consideration.

4. Common Misconceptions About Spinal Curvature

The information pollution on the internet can mislead our patients. Let us correct the most common myths from a specialist's perspective:

• Incorrect: “My child developed scoliosis because they carried a heavy bag.” Correct: Heavy bags cause poor posture and back pain, but they do not cause structural scoliosis by altering the genetic structure of the spine.
• Incorrect: “Swimming completely corrects scoliosis.” Correct: Swimming is a great support, strengthens muscles and improves posture. However, it is not possible to completely correct a 40-degree bone curvature just by swimming.
• Incorrect: “After surgery, the child will never be able to play sports again.” Correct: With modern surgical techniques (especially movement-preserving techniques), our patients can return to sports such as swimming, running, and cycling after the recovery process. In fact, we have patients who continue their professional sporting careers.

Don't panic, follow the instructions

Spinal curvature is a manageable condition when detected early. Don't be alarmed by the word "curvature". If you notice any asymmetry in your child's or your own spine, you can clarify the situation by consulting a spinal surgeon and having a simple full spine X-ray (scoliosis X-ray) taken. Remember, early diagnosis is the best treatment.

Frequently Asked Questions

1. Does spinal curvature correct itself? Non-structural, posture-related curvatures (postural abnormalities) can be corrected with exercise and posture training. However, structural scoliosis or kyphosis (bony curvature) does not correct itself; it requires monitoring and appropriate treatment.

2. Is scoliosis genetic? Yes, genetic inheritance plays a significant role, particularly in the most common type, "Adolescent Idiopathic Scoliosis". Children with a family history of scoliosis are advised to be monitored more closely during adolescence.

3. Can spinal curvature be treated in adults? Yes. Treatment in adults is generally aimed at relieving pain and improving quality of life. Successful results are achieved through physiotherapy, injections and, where necessary, surgical intervention.

4. Is an MRI scan necessary? A standing X-ray, known as a scoliosis X-ray, is usually sufficient to measure the degree of spinal curvature. An MRI is generally requested for patients scheduled for surgery or if there is suspicion of another spinal cord problem accompanying the curvature.

Linkedin : Prof.Dr.Çağatay ÖZTÜRK