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  • Changes in bone density and geometry of the radius in chronic stroke and related factors: A one-year prospective study

    Author(s)
    Pang, MYC
    Zhang, M
    Li, LSW
    Jones, AYM
    Griffith University Author(s)
    Jones, Alice
    Year published
    2013
    Metadata
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    Abstract
    Objectives: To describe the changes in bone density and geometry of the radius after chronic stroke and the associated clinical factors. Methods: Twenty stroke patients (12 men and 8 women, age=42-78 years, time post-stroke=12-166 months) and 23 con- trol participants (14 men and 9 women, age=53-77 years) were assessed at the time of enrolment and one year later. Peripheral quantitative computed tomography was used to scan the radius epiphysis (4% site) and diaphysis (33% site). Grip strength, spas-ticity, paretic arm disuse, physical activity, and vascular health were also evaluated. Results: During the follow-up period, ...
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    Objectives: To describe the changes in bone density and geometry of the radius after chronic stroke and the associated clinical factors. Methods: Twenty stroke patients (12 men and 8 women, age=42-78 years, time post-stroke=12-166 months) and 23 con- trol participants (14 men and 9 women, age=53-77 years) were assessed at the time of enrolment and one year later. Peripheral quantitative computed tomography was used to scan the radius epiphysis (4% site) and diaphysis (33% site). Grip strength, spas-ticity, paretic arm disuse, physical activity, and vascular health were also evaluated. Results: During the follow-up period, only the cortical thickness and cortical bone mineral content (BMC) in the paretic radius diaphysis showed a decline that exceeded the least significant change value (p=0.002). Paretic arm disuse, lower vascular elasticity and physical activity level at initial assess-ment were significantly related to more decline in cortical thickness at this site (p<0.01). Conclusions: The paretic radius diaphysis sustained significant reduction in cortical thickness and cortical BMC over time in chronic stroke, but these changes were less pronounced than those previously reported in sub-acute stroke. Strategies to modify vascular health, disuse, and physical activity may be important in improving upper limb bone health but will need further investigations
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    Journal Title
    Journal of Musculoskeletal and Neuronal Interactions
    Volume
    13
    Issue
    1
    Publisher URI
    http://www.ismni.org/jmni/index.htm
    Subject
    Physiotherapy
    Clinical Sciences
    Neurosciences
    Medical Physiology
    Publication URI
    http://hdl.handle.net/10072/56083
    Collection
    • Journal articles

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