Overview
Bilateral amelia of the lower limb is an extremely rare congenital condition in which a baby is born without both legs. The term 'amelia' means the complete absence of a limb, and 'bilateral' means both sides are affected. This condition is present at birth and is typically detected during prenatal ultrasound or immediately after delivery. The absence of both lower limbs significantly affects mobility and independence from early life onward. Note: This specific Orphanet entry (295059) is marked as 'OBSOLETE,' meaning it may have been reclassified, merged with another entry, or reorganized within current medical classification systems. Patients and families should work with their medical team to identify the most current diagnostic terminology for their condition. The causes of bilateral lower limb amelia can vary. In some cases, it may be linked to genetic factors, while in others it may result from environmental exposures during pregnancy (such as certain medications like thalidomide), vascular disruptions, or amniotic band syndrome. Sometimes no clear cause is found. Treatment focuses on maximizing function and quality of life through prosthetic limbs, physical therapy, occupational therapy, and adaptive equipment. Surgical interventions may sometimes be needed to optimize the residual limb area for prosthetic fitting. With modern prosthetics and rehabilitation, many individuals with this condition achieve remarkable levels of independence and mobility.
Key symptoms:
Complete absence of both legs from birthInability to walk without assistive devicesDifficulty with balance and sitting without supportShortened trunk appearancePossible associated birth defects in some casesReduced mobility and independencePotential hip joint abnormalitiesPossible pelvic bone differences
Variable
Can be inherited in different ways depending on the underlying gene
Neonatal
Begins at or shortly after birth (first 4 weeks)
Treatments
No FDA-approved treatments are currently listed for OBSOLETE: Amelia of lower limb, bilateral.
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Specialists
View all specialists →No specialists are currently listed for OBSOLETE: Amelia of lower limb, bilateral.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to OBSOLETE: Amelia of lower limb, bilateral.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What is the likely cause of my child's condition, and should we pursue genetic testing?,At what age should we begin prosthetic fitting and physical therapy?,Are there any associated conditions or birth defects we should screen for?,What type of prosthetics would be most appropriate at each stage of development?,How can we access financial assistance for prosthetics and adaptive equipment?,Are there clinical trials or new technologies that might benefit my child?,Can you recommend psychological support services and peer support groups for our family?
Common questions about OBSOLETE: Amelia of lower limb, bilateral
What is OBSOLETE: Amelia of lower limb, bilateral?
Bilateral amelia of the lower limb is an extremely rare congenital condition in which a baby is born without both legs. The term 'amelia' means the complete absence of a limb, and 'bilateral' means both sides are affected. This condition is present at birth and is typically detected during prenatal ultrasound or immediately after delivery. The absence of both lower limbs significantly affects mobility and independence from early life onward. Note: This specific Orphanet entry (295059) is marked as 'OBSOLETE,' meaning it may have been reclassified, merged with another entry, or reorganized wit
At what age does OBSOLETE: Amelia of lower limb, bilateral typically begin?
Typical onset of OBSOLETE: Amelia of lower limb, bilateral is neonatal. Age of onset can vary across affected individuals.