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Rickets



X-ray
X-ray


Rickets

Alternative Names:

Osteomalacia in children; Vitamin D deficiency; Renal rickets
Symptoms:
  • Bone pain or tenderness
    • Arms
    • Legs
    • Spine
    • Pelvis
  • Skeletal deformities
    • Bowlegs
    • Forward projection of the breastbone (pigeon chest)
    • Bumps in the rib cage (rachitic rosary)
    • Asymmetrical or odd-shaped skull
    • Spine deformities (spine curves abnormally, including scoliosis or kyphosis)
    • Pelvic deformities
  • Increased tendency toward bone fractures
  • Dental deformities
    • Delayed formation of teeth
    • Defects in the structure of teeth, holes in the enamel
    • Increased incidence of cavities in the teeth (dental caries)
    • Progressive weakness
    • Decreased muscle tone (loss of muscle strength)
  • Muscle cramps
  • Impaired growth
  • Short stature (adults less than 5 feet tall)

Signs and tests:


A musculoskeletal examination reveals tenderness or pain of the bone itself, rather than in the joints or muscles.

  • Calcium levels may be low.
    • Tetany (prolonged muscle spasm) may occur if serum levels of calcium are low.
    • Chvostek's sign may be positive (a spasm of facial muscles occurs when the facial nerve is tapped) indicating low serum levels of calcium.
    • Serum calcium will confirm calcium levels.
  • Serum phosphorus may be low.
  • Serum alkaline phosphatase may be high.
  • Arterial blood gases may reveal metabolic acidosis.
  • Bone x-rays may show decalcification or changes in the shape or structure of the bones.
  • A bone biopsy is rarely performed but will confirm rickets.
Other tests and procedures include the following:


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