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Fractured collar bone - newborn
The baby will not move the painful, injured arm. Instead, the baby will hold it still against the side of the body. Lifting the baby under the arms causes the child pain. Sometimes the fracture can be felt with the fingers, but usually the problem cannot be seen or felt.
Within a few weeks, a hard lump may develop where the bone is healing. This lump may be the only sign that the newborn had a broken collar bone.
A chest x-ray will show whether or not there is a broken bone.
An infant's refusal to move an arm may also be due to partial dislocation of the elbow (nursemaid's elbow), nerve damage (Erb palsy), broken humerus (upper arm bone), or other causes.
Daya M, Nakamura Y. Shoulder. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 50.
Carlo WA. Delivery room emergencies. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 94.
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