Abstract
Objective: To evaluate the sensitivity and specificity of calcaneal quantitative ultrasound (QUS) measurements for identifying osteoporosis determined by dual-energy x-ray absorptiometry (DXA) at the hip in a spinal cord injury (SCI) population. Design: Cross-sectional retrospective review of data collected in the bone health registry of persons with a disability. Setting: Inpatients and outpatients at a single acute rehabilitation hospital. Participants: A convenience sample of 66 participants, both inpatients and outpatients, with a spinal cord injury. Methods: Calcaneal T scores were determined by ultrasound, and bone density of the lumbar spine, total hip, and femoral neck were determined by DXA. Main Outcome Measurements: Right and left calcaneal QUS T scores and right and left hip and femoral neck DXA T scores. Results: Right and left hip DXA T scores were strongly associated with corresponding right and left calcaneal QUS T scores (right: r = .72, P < .001; left: r = .70, P < .001). Similar associations were found when we evaluated femoral neck T scores and calcaneal QUS T scores. Receiver operating characteristic analysis for evaluating QUS to identify DXA-defined osteoporosis demonstrated an area under the curve of 0.81 for all participants (acute and chronic injury) and 0.68 for those with a chronic SCI. Conclusions: A strong association exists between calcaneal QUS T scores and bone density T scores at the hip measured by DXA. QUS may have a place in the screening of people with SCI 1 year or more after their injury to evaluate their bone status.
Original language | English (US) |
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Pages (from-to) | 748-755 |
Number of pages | 8 |
Journal | PM and R |
Volume | 4 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2012 |
ASJC Scopus subject areas
- Physical Therapy, Sports Therapy and Rehabilitation
- Rehabilitation
- Neurology
- Clinical Neurology