High bone mineral density

A high bone mineral density is one where the bone mineral density is usually above two standard deviations above what is expected for age. This can sometimes be seen on routine Dexa scan assessment. Some authors advocate advocated a definition of a high BMD where the Z-score is >+2.5 to highlight to clinicians the potential for underlying pathology 2.

Pathology

A high bone mineral density can result from a number of varied mechanisms. It may be associated with conditions with increased fracture risk, or artefacts that themselves do not affect fracture risk but may mask low bone mineral density or in situation where fracture risk may be reduced but other comorbidities may occur.

Causes
Focal
Generalised

Generalised acquired

Generalised inherited 

Artefactual causes
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Article Information

rID: 39844
Section: Gamuts
Synonyms or Alternate Spellings:
  • High bone mineral density (BMD)
  • Increased bone mineral density
  • Increased BMD
  • High BMD

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