在脊髓损伤中，股骨远端的双能X线吸收法可能比胫骨近端更可靠。
Dual energy x-ray absorptiometry of the distal femur may be more reliable than the proximal tibia in spinal cord injury.
作者信息
Morse Leslie R, Lazzari Antonio A, Battaglino Ricardo, Stolzmann Kelly L, Matthess Kirby R, Gagnon David R, Davis Samuel A, Garshick Eric
机构信息
Department of Physical Medicine and Rehabilitation, Harvard Medical School, The Forsyth Institute, Boston, Massachusetts 02118, USA.
出版信息
Arch Phys Med Rehabil. 2009 May;90(5):827-31. doi: 10.1016/j.apmr.2008.12.004.
Abstract
OBJECTIVE
To evaluate the precision of dual energy x-ray absorptiometry scanning at 2 skeletal sites at the knee (proximal femur and distal tibia) in people with SCI.
DESIGN
Cross-sectional.
SETTING
Veterans Affairs Medical Center.
PARTICIPANTS
Subjects (N=20) with chronic SCI.
INTERVENTIONS
Not applicable.
MAIN OUTCOME MEASURES
Precision as determined by root mean square coefficient of variation (RMS-CV) and root mean square standard deviation (RMS-SD).
RESULTS
At the distal femur the root RMS-CV was 3.01% and the RMS-SD was 0.025g/cm2. At the proximal tibia the RMS-CV was 5.91% and the RMS-SD was 0.030g/cm2.
CONCLUSIONS
Precision at the distal femur is greater than at the proximal tibia and we recommend it as the preferred site for the longitudinal assessment of bone mineral density at the knee in chronic SCI.
摘要
目的
评估脊髓损伤患者膝关节两个骨骼部位（股骨近端和胫骨远端）双能X线吸收法扫描的精度。
设计
横断面研究。
地点
退伍军人事务医疗中心。
参与者
20名慢性脊髓损伤受试者。
干预措施
不适用。
主要观察指标
通过均方根变异系数（RMS-CV）和均方根标准差（RMS-SD）确定的精度。
结果
在股骨远端，均方根RMS-CV为3.01%，RMS-SD为0.025g/cm²。在胫骨近端，RMS-CV为5.91%，RMS-SD为0.030g/cm²。
结论
股骨远端的精度高于胫骨近端，我们建议将其作为慢性脊髓损伤患者膝关节骨密度纵向评估的首选部位。
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