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A 49-year-old female asked:

Are babies born without kneecaps. i'm reading in my breast feeding book on newborns and this is what they say ?

1 doctor answer7 doctors weighed in
Dr. Ahmad M Hadied
Orthopedic Surgery 51 years experience
Let me explain: Newborn have knee cap. Kneecaps form about the fourth month of fetal life. However, they don’t show up on x-ray very well because they’re not ossified, or bony. At this point in life, the kneecaps are made of a cartilaginous material. The growth centers surrounding the kneecap form late in developmental life in utero and may not appear until just before or just after the infant is born.
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Last updated Jan 1, 2021

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