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quantitative ultrasound of the calcaneus in children and young adults with severe cerebral palsy

Published online by Cambridge University Press:  12 September 2005

maja jekovec-vrhovšek
Affiliation:
centre for severe psychosomatic disorders, slovenia.
andreja kocijančič
Affiliation:
department of endocrinology, clinical centre, ljubljana, slovenia.
janez preželj
Affiliation:
department of endocrinology, clinical centre, ljubljana, slovenia.
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Abstract

osteopenia is common in children, adolescents, and young adults with severe cerebral palsy (cp; spastic quadriplegia) living in residential care, and frequently results in atraumatic fractures. on clinical grounds 67 patients (34 males, 33 females) with severe cp (gross motor function classification system [gmfcs] levels iv or v) aged 5 to 25 years (median 20y) were divided into three groups with increasing likelihood of severe impairment of bone quality: (1) patients without fractures and without anticonvulsant medication (n=13); (2) patients without fractures and with anticonvulsant medication (n=45); (3) patients with fractures and with anticonvulsant medication (n=9). evaluation included measurements of quantitative ultrasound (qus) of the calcaneus, multiple serum analyses, and determination of urinary bone-resorption markers. values of the quantitative ultrasound index (qui) were significantly different (p=0.001): group 1 (median 56.9; interquartile range 43.8–75.3); group 2 (49.9; 40.0–60.0); group 3 (35.6; 30.5–38.5). when comparing values of laboratory serum and urine in the three groups, we found significant differences in values of serum bone alkaline phosphatase (p=0.001), serum parathyroid hormone (pth; p=0.002), serum albumin (p=0.020), and urinary deoxypyridinoline/creatinine ratio (p=0.004). in multiple regression analysis, no laboratory variable was found to be an independent predictor of qui. qus of the calcaneus may be a useful method to assess bone quality and fracture risk in children and young adults with severe cp living in residential care, independent of information from laboratory data.

Type
original articles
Copyright
© 2005 mac keith press

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