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Marfanoid Body Shape

Posted By Alan Hakim, July 3, 2013

What is the ‘marfanoid body habitus’

This term is used to describe people with a very particular body shape – tall slender physique with long arms, cialis hands, fingers, legs, feet and toes. It is made up of the following carefully assessed measures and observations that should be made by a medical or allied health professional. Not all the findings need to be present to use the term. This body shape is commonly found in Marfan Syndrome and Joint Hypermobility Syndrome.

Measurements:

  • An Arm Span to Height ratio > 1.03
  • A Hand length to Height ratio  > 11% (called arachnodactyly – also applies to the toes)
  • A Foot length to Height ratio > 15%
  • An Upper Body Segment to Lower Body Segment ratio < 0.89

Other features of the marfanoid habitus comprise:

  • A scoliosis (spinal curvature) of > 5 degrees (though a curve > 20 degrees is considered significant)
  • Either indenting or outward bulging of the breast bone (sternum) – so called Pectus deformities (excavatum or carinatum respectively)
  • Jaw deformities with overcrowding of teeth
  • A high-arch to the palate (roof of the mouth)
  • Long flat feet often, which flatten and turn inward at the mid-foot (pronate) when standing.

Posted June 2013. Planned Date of Review 2016

Academic References

Grahame R, Hakim AJ. Arachnodactyly-a key to diagnosing heritable disorders of connective tissue. Nat Rev Rheumatol. 2013 Jun;9(6):358-64.

Loeys BL, Dietz HC, Braverman AC, et al. The revised Ghent nosology for the Marfan syndrome. J Med Genet. 2010 Jul;47(7):476-85

 


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