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Living with Congenital pseudoarthrosis of the limbs

A rare condition in which a long bone in an arm or leg does not heal or join, creating a false joint.

Understanding Congenital pseudoarthrosis of the limbs

Congenital pseudoarthrosis of the limbs is a rare genetic limb condition in which a long bone does not join or heal properly, forming a false joint.

The false joint moves abnormally and the bone bends at that spot. This can lead to progressive bowing of the forearm or leg, a shorter limb, and fractures that do not heal. It is often linked with neurofibromatosis and osteofibrous dysplasia.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Its summary describes these features:

  • Bone that does not join or heal
  • Bowing of the forearm or leg
  • Shorter limb
  • Fractures that do not heal
  • Abnormal movement at the bone

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 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
Is neurofibromatosis or another condition involved in my child's case?
What treatment options, including surgery, can help the bone heal?
Which specialist, such as a pediatric orthopedist, should we see?

Quick facts

GARD says changes in genes cause this condition. It doesn't name a gene.

Genetic

Also known as: congenital pseudarthrosis of the limbs; congenital pseudoarthrosis of limb

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Congenital pseudoarthrosis of the limbsGARD ID 20015 · 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 Congenital pseudoarthrosis of the limbs.

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Explore actively recruiting Congenital pseudoarthrosis of the limbs studies with HealthSpark.

HealthSpark

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  • 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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