Frog-leg position

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Frog-leg position
seen in

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[A] Rheumatoid arthritis
[B] Cauda equina syndrome
[C] Intramedullary tumor of Spinal cord
[D] Caudal regression syndrome

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Caudal regression syndrome – also called as

• • sacral agenesis
  • hypoplasia of the sacrum

Frog-leg position: child’s legs bend with their knees pointed outward and their feet in line with their hips.

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Can be seen in –

• Natural resting position for babies
• Caudal regression syndrome
• Hypotonia

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CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

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Antero-posterior radiographic view, showing missing ribs, absent lumbosacral vertebrae, hypoplastic pelvis and “frog-like” position of the lower extremities.

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