Journal article
Bone Mineral Density After Spinal Cord Injury: A Reliable Method for Knee Measurement
Archives of physical medicine and rehabilitation, Vol.86(10), pp.1969-1973
2005
DOI: 10.1016/j.apmr.2005.06.001
PMCID: PMC3272271
PMID: 16213240
Abstract
Shields RK, Schlechte J, Dudley-Javoroski S, Zwart BD, Clark SD, Grant SA, Mattiace VM. Bone mineral density after spinal cord injury: a reliable method for knee measurement.
To test the interrater reliability of a standardized method to analyze knee bone mineral density (BMD) using dual-energy x-ray absorptiometry (DXA); to compare spine, hip, and knee BMD of people with spinal cord injury (SCI) with able-bodied controls; and to determine the relation between hip BMD and knee BMD in SCI and able-bodied subjects.
Criterion standard and masked comparison.
Primary care university hospital.
A convenience sample of 11 subjects with complete SCI was age and sex matched with 11 able-bodied control subjects.
Not applicable.
Four raters analyzed regions of interest according to operational definitions recently developed to standardize the analysis of BMD of the knee. Subjects with chronic SCI and matched controls underwent conventional DXA scans of the spine and hips and “less conventional” scans of the distal femurs and proximal tibias. The relation between hip and knee BMD was analyzed.
The knee measurements were highly reliable (femur intraclass correlation coefficient model 2,1 [ICC
2,1]=.98; tibia ICC
2,1=.89). Subjects with SCI had lower BMD values than controls at all hip and knee sites (
P<.05). Lumbar spine BMD did not differ between groups. Hip BMD was moderately predictive of distal femur BMD (
R
2=.67), but less correlated with the proximal tibia (
R
2=.38).
Knee BMD can be reliably analyzed using DXA with this protocol. Subjects with SCI have diminished knee and hip BMD. Low hip BMD is associated with low distal femur BMD.
Details
- Title: Subtitle
- Bone Mineral Density After Spinal Cord Injury: A Reliable Method for Knee Measurement
- Creators
- Richard K Shields - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IAJanet Schlechte - General Clinical Research Center and Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IAShauna Dudley-Javoroski - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IABradley D Zwart - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IASteven D Clark - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IASusan A Grant - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IAVicki M Mattiace - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, IA
- Resource Type
- Journal article
- Publication Details
- Archives of physical medicine and rehabilitation, Vol.86(10), pp.1969-1973
- DOI
- 10.1016/j.apmr.2005.06.001
- PMID
- 16213240
- PMCID
- PMC3272271
- NLM abbreviation
- Arch Phys Med Rehabil
- ISSN
- 0003-9993
- eISSN
- 1532-821X
- Publisher
- Elsevier Inc
- Language
- English
- Date published
- 2005
- Academic Unit
- Orthopedics and Rehabilitation; Physical Therapy and Rehabilitation Science; Endocrinology and Metabolism; Internal Medicine
- Record Identifier
- 9984047623602771
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