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Living with Fibular hemimelia

A rare condition present from birth in which the fibula (outer lower leg bone) is partly or fully missing, which can affect the leg, foot and walking.

Understanding Fibular hemimelia

Fibular hemimelia is a rare condition present from birth that affects the bones of the leg and foot.

People may be missing part or all of the fibula, the smaller outer bone of the lower leg. The shinbone (tibia) and foot bones may not grow properly. This can cause problems with walking and may need medical treatment.

Signs & symptoms

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

  • Missing or short fibula
  • Short or bowed shinbone (tibia)
  • Club foot
  • Legs of different lengths
  • Knock knees
  • Trouble walking (gait disturbance)

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
Which orthopedic specialists treat leg length differences?
What are the options for walking support or surgery?
How should my child's growth be monitored?

Quick facts

Symptoms usually startduring Pregnancy

Changes in genes cause it. GARD doesn't name a gene or describe how it is inherited.

Genetic

Also known as: congenital longitudinal deficiency of the fibula; fibular longitudinal meromelia; longitudinal deficiency of fibula; longitudinal reduction defect of fibula

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Fibular hemimeliaGARD ID 8659 · 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 Fibular hemimelia.

Explore the Fibular hemimelia blog

Explore research for Fibular hemimelia

Explore actively recruiting Fibular hemimelia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Fibular hemimelia 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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I can help you find recruiting Fibular hemimelia studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

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

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