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Living with Spondylometaphyseal dysplasia, Golden type

A rare X-linked bone condition with severe short stature, coarse facial features, and enlarged, stiff joints.

Understanding Spondylometaphyseal dysplasia, Golden type

Spondylometaphyseal dysplasia, Golden type is a rare X-linked bone condition with severe short stature.

People have coarse facial features, a curved spine, and enlarged joints that can't fully straighten. Delayed movement and learning skills and intellectual disability may also occur. X-rays show flat spine bones and changes in the long bones and skull base. GARD notes no further descriptions in the literature since 1977.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. The summary describes:

  • Severe short stature
  • Coarse facial features
  • Curved spine (kyphoscoliosis)
  • Enlarged, stiff joints
  • Delayed motor and thinking skills
  • Intellectual disability

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

    Specialists who may be involved include bone and joint specialists and genetic specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists)
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 Kniest SED Group
  • 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
What therapies can support my child's development?
How can we monitor the joints and spine?
Is genetic testing available for our family?

Quick facts

InheritanceX-Linked

Changes in genes (variants) cause this condition. It is X-linked, meaning the gene is on the X chromosome. GARD doesn't list which gene.

Genetic

Also known as: spondylometaphyseal dysplasia golden type; spondylometaphyseal dysplasia richmond type; x-linked spondylometaphyseal dysplasia

Patient organizations

Source: NIH GARD · Spondylometaphyseal dysplasia, Golden typeGARD ID 8343 · 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 Spondylometaphyseal dysplasia, Golden type.

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