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Living with Spondylocostal dysostosis

A group of genetic conditions that affect how the spine and ribs form, leading to a short trunk.

Understanding Spondylocostal dysostosis

Spondylocostal dysostosis is a group of conditions in which the bones of the spine and ribs develop abnormally.

The spine bones (vertebrae) are misshapen and fused, and some ribs may be fused or missing. These differences are present from birth. People have a short, stiff neck and a short torso, but arms and legs of normal length. The small chest can cause breathing problems in infants. Some people also have a neural tube defect, which is a gap in the early development of the brain and spinal cord.

Signs & symptoms

Symptoms vary from person to person. GARD describes these features:

  • Misshapen, fused spine bones
  • Side-to-side curve of the spine (scoliosis)
  • Fused or missing ribs
  • Short, rigid neck and short torso
  • Small chest and breathing problems
  • Soft bulge in the lower belly (inguinal hernia)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
How can we check my child's breathing and chest growth?
Should we be screened for neural tube differences?
Which specialists should be on my child's care team?

Quick facts

GARD doesn't describe a cause for this condition yet.

Also known as: costovertebral dysplasia; spondylocostal dysplasia; spondylothoracic dysplasia

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Spondylocostal dysostosisGARD ID 12174 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Spondylocostal dysostosis.

Explore the Spondylocostal dysostosis blog

Explore research for Spondylocostal dysostosis

Explore actively recruiting Spondylocostal dysostosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Spondylocostal dysostosis with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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