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Living with Skeletal dysplasia-intellectual disability syndrome

A rare X-linked condition with bone differences in the spine and hands, short height and moderate learning challenges.

Understanding Skeletal dysplasia-intellectual disability syndrome

Skeletal dysplasia-intellectual disability syndrome is a rare condition with bone differences and intellectual disability.

People have short stature, fused neck bones, scoliosis, a small sacrum and short middle finger bones. They also have moderate intellectual disability and eye muscle weakness (abducens palsy). Glucose intolerance and a closed anus have also been described. GARD notes there have been no further descriptions in the medical literature since 1977. It is present from birth.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Short stature
  • Scoliosis
  • Fused neck bones
  • Short fingers and toes
  • Type 2 diabetes
  • Half-formed bones in the upper spine

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, brain and nervous system specialists, digestive system specialists and genetic specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Little People of America may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Brain and nervous system specialists (neurologists); Digestive system specialists (gastroenterologists); Genetic specialists (geneticists)
Expert care
Expert lists: Little People of America
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 Little People of America
  • 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
Can genetic testing help find the cause?
How should the spine and neck be monitored?
How often should blood sugar be checked?

Quick facts

Symptoms usually startNewborn
InheritanceX-Linked

GARD says changes in genes cause this condition, but it doesn't list a gene. The condition is X-linked, meaning the gene is on the X chromosome.

GeneticNeurologicalGastrointestinal

Also known as: christian syndrome; chrs; impaired intellectual development, skeletal dysplasia, and abducens palsy; intellectual developmental disorder, x-linked, syndromic, christian type; mental retardation-skeletal dysplasia; skeletal dysplasia with intellectual disability syndrome

Patient organizations

Source: NIH GARD · Skeletal dysplasia-intellectual disability syndromeGARD ID 3520 · 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 Skeletal dysplasia-intellectual disability syndrome.

Explore the Skeletal dysplasia-intellectual disability syndrome blog

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