Overview
Bilateral apodia is an extremely rare congenital limb deficiency in which both feet are completely absent at birth. The term 'apodia' comes from the Greek words meaning 'without feet.' This condition is classified as a terminal transverse limb deficiency, meaning the lower portions of the legs end before the feet would normally form. It can occur as an isolated finding or as part of a broader pattern of birth differences. The condition is present from birth and is typically noticed immediately upon delivery. Because this entry is marked as 'OBSOLETE' in the Orphanet classification system, it may have been reclassified or merged into a broader category of limb reduction defects or terminal transverse deficiencies. The exact cause of bilateral apodia is not always known. It may result from disruptions in blood flow to the developing limbs during pregnancy, genetic factors, or amniotic band syndrome, where strands of tissue in the womb wrap around developing limbs. In some cases, it may be associated with other congenital anomalies. Treatment focuses on rehabilitation, prosthetic fitting, and supportive care to maximize mobility and independence. With modern prosthetic technology and early intervention, many individuals with bilateral apodia can achieve a good quality of life, walk independently, and participate in a wide range of activities. A multidisciplinary team approach is essential for the best outcomes.
Also known as:
Key symptoms:
Complete absence of both feet at birthShortened lower legsDifficulty with walking and balance without assistive devicesPossible associated limb differencesPossible differences in leg length or shapeReduced mobility without prostheticsSkin sensitivity at the end of the residual limbsPotential joint stiffness in knees or hips over time
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: Apodia, bilateral.
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Specialists
View all specialists →No specialists are currently listed for OBSOLETE: Apodia, 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: Apodia, bilateral.
Community
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Caregiver Resources
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Family & Caregiver Grants
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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 caused my child's bilateral apodia, and should we pursue genetic testing?,At what age should prosthetic fitting begin?,How often will prosthetics need to be replaced as my child grows?,What physical therapy program do you recommend?,Are there any associated conditions we should screen for?,What resources are available for emotional and psychological support?,Can you refer us to a specialized limb deficiency clinic or rehabilitation center?
Common questions about OBSOLETE: Apodia, bilateral
What is OBSOLETE: Apodia, bilateral?
Bilateral apodia is an extremely rare congenital limb deficiency in which both feet are completely absent at birth. The term 'apodia' comes from the Greek words meaning 'without feet.' This condition is classified as a terminal transverse limb deficiency, meaning the lower portions of the legs end before the feet would normally form. It can occur as an isolated finding or as part of a broader pattern of birth differences. The condition is present from birth and is typically noticed immediately upon delivery. Because this entry is marked as 'OBSOLETE' in the Orphanet classification system, it m
At what age does OBSOLETE: Apodia, bilateral typically begin?
Typical onset of OBSOLETE: Apodia, bilateral is neonatal. Age of onset can vary across affected individuals.