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Sagittal Spinal Alignment in the Standing, Sitting and Supine Position Kenji ENDO 1 , Hidekazu SUZUKI 1 , Dai KIMURA 1 , Hirosuke NISHIMURA 1 , Hidetoshi TANAKA 1 , Kengo YAMAMOTO 1 1Department of Orthopaedic Surgery, Tokyo Medical University Keyword: 脊椎矢状面アライメント , sagittal spinal alignment , 仰臥位 , supine position , 健常人 , healthy adult volunteer pp.235-239
Published Date 2012/3/25
DOI https://doi.org/10.11477/mf.1408102283
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 Background:The purpose of this study was to analyse changes in lumbar mechanical stress as a result of changes in lumbar posture (standing, sitting, and supine position).

 Methods:Nineteen healthy volunteers subjects were examined by plain X-ray in the standing, sitting, and supine position, and the following parameters were measured on the lateral lumbar-spine radiographs:lumbar lordotic angle (LLA), sacral slope (SS), pelvic tilt angle (PT), pelvic incidence (PI).

 Outcome:The measurements in the standing, sitting, and supine position were:LLA, 52.2±10.8°, 22.6±12.7°, and 46.0±10.4°, respectively;SS, 35.6±7.2°, 17.7±9.5°, and 37.5±7.0°, respectively;PT, 6.9±5.8°, 25.1±12.1°, and 6.4±4.9°, respectively, and PI, 43.6±6.3°, 44.4±8.0°, and 42.7±6.8°, respectively.

 Conclusion:Based on the results of this study, the lumbo-pelvic spinal sagittal alignment in the supine position was similar to its alignment in the standing position (LLA was larger, and PT was smaller).


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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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