Journal of Korean Neurosurgical Society

  • 제51권1호
  • /
  • Pages.20-23
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  • 2012
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  • 2005-3711(pISSN)
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  • 1598-7876(eISSN)
대한신경외과학회 (The Korean Neurosurgical Society)
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A Comparison Study on the Change in Lumbar Lordosis When Standing, Sitting on a Chair, and Sitting on the Floor in Normal Individuals

  • Bae, Jun-Seok (Department of Neurosurgery, Wooridul Spine Hospital) ;
  • Jang, Jee-Soo (Department of Neurosurgery, Wooridul Spine Hospital) ;
  • Lee, Sang-Ho (Department of Neurosurgery, Wooridul Spine Hospital) ;
  • Kim, Jin-Uk (Department of Orthpedic Surgery, Seoul Wooridul Hospital)
  • 투고 : 2011.09.23
  • 심사 : 2012.01.25
  • 발행 : 2012.01.28
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초록

Objective : To compare radiographic analysis on the sagittal lumbar curve when standing, sitting on a chair, and sitting on the floor. Methods : Thirty asymptomatic volunteers without a history of spinal pathology were recruited. The study population comprised 11 women and 19 men with a mean age of 29.8 years. An independent observer assessed whole lumbar lordosis (WL) and segmental lordosis (SL) between L1 and S1 using the Cobb's angle on lateral radiographs of the lumbar spine obtained from normal individuals when standing, sitting on a chair, and sitting on the floor. WL and SL at each segment were compared for each position. Results : WL when sitting on the floor was reduced by 72.9% than the average of that in the standing position. Of the total decrease in WL, 78% occurred between L4 to S1. There were significant decreases in SL at all lumbar spinal levels, except L1-2, when sitting on the floor as compared to when standing and sitting on a chair. Changes in WL between the positions when sitting on a chair and when sitting on the floor were mostly contributed by the loss of SL at the L4-5 and L5-S1 levels. Conclusion : When sitting on the floor, WL is relatively low; this is mostly because of decreasing lordosis at the L4-5 and L5-S1 levels. In the case of lower lumbar fusion, hyperflexion is expected at the adjacent segment when sitting on the floor. To avoid this, sitting with a lordotic lumbar curve is important. Surgeons should remember to create sufficient lordosis when performing lower lumbar fusion surgery in patients with an oriental life style.

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참고문헌

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  2. The Effects of Running in Place on Healthy Adults’ Lumbar Stability vol.26, pp.6, 2012, https://doi.org/10.1589/jpts.26.821
  3. The lumbar spine has an intrinsic shape specific to each individual that remains a characteristic throughout flexion and extension vol.23, pp.suppl1, 2014, https://doi.org/10.1007/s00586-013-3162-1
  4. Biomechanical Effect of Altered Lumbar Lordosis on Intervertebral Lumbar Joints During the Golf Swing: A Simulation Study vol.136, pp.11, 2012, https://doi.org/10.1115/1.4028427
  5. Effects of running in place accompanied by abdominal drawing-in on the posture of healthy adults vol.27, pp.5, 2015, https://doi.org/10.1589/jpts.27.1613
  6. The Correlation Between Restoration of Lumbar Lordosis and Surgical Outcome in the Treatment of Low-grade Lumbar Degenerative Spondylolisthesis With Spinal Fusion vol.29, pp.1, 2012, https://doi.org/10.1097/bsd.0000000000000061
  7. The impact of office chair features on lumbar lordosis, intervertebral joint and sacral tilt angles: a radiographic assessment vol.60, pp.10, 2017, https://doi.org/10.1080/00140139.2016.1265670
  8. The effects of dynamic exercise using the proprioceptive neuromuscular facilitation pattern on posture in healthy adults vol.29, pp.6, 2012, https://doi.org/10.1589/jpts.29.1070
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  10. CLASSIFICATION OF SPINAL POSTURES DURING CROSS-LEGGED SITTING ON THE FLOOR vol.19, pp.8, 2012, https://doi.org/10.1142/s0219519419400566
  11. Lower Satisfaction After Adult Spinal Deformity Surgery in Japan Than in the United States Despite Similar SRS-22 Pain and Function Scores : A Propensity-Score Matched Analysis vol.45, pp.17, 2020, https://doi.org/10.1097/brs.0000000000003483