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Bone anomalies in myotonic dystrophy.

J R Rodriguez1, J Castillo, R Leira

  • 1Neurology Service, Galicia General Hospital, Santiago de Compostela University, Spain.

Acta Neurologica Scandinavica
|June 1, 1991
PubMed
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Patients with myotonic dystrophy show increased bone density and skull bone overgrowth. These findings suggest a generalized tendency for hyperostosis in this genetic disorder.

Area of Science:

  • Neurology
  • Endocrinology
  • Radiology

Background:

  • Myotonic dystrophy is a multisystem genetic disorder.
  • Skeletal abnormalities are not well-characterized in myotonic dystrophy.

Purpose of the Study:

  • To investigate bone mineral density and skull morphology in patients with myotonic dystrophy.
  • To compare findings with a control group.

Main Methods:

  • Computed tomography (CT) of the skull was performed on 16 patients with myotonic dystrophy.
  • Dual-photon absorptiometry measured bone mineral density at the lumbar spine and hip.
  • Results were compared to 20 age- and sex-matched healthy controls.

Main Results:

  • Patients with myotonic dystrophy exhibited hyperostosis of the calvarium.

Related Experiment Videos

  • Increased bone mineral density was observed at the lumbar vertebrae.
  • One patient had basal ganglia calcification linked to secondary hyperparathyroidism due to vitamin D deficiency; others had normal calcium metabolism.

    • Conclusions:

    • Myotonic dystrophy patients demonstrate a potential for generalized hyperostosis.
    • Further research into bone metabolism in myotonic dystrophy is warranted.