Lumbar Spine and Pelvic Posture Between Standing and Sitting: A Radiologic Investigation Including Reliability and Repeatability of the Lumbar Lordosis Measure

Carvalho, Diana De; Soave, David; Ross, Karen; Callaghan, Jack P.

doi:10.1016/j.jmpt.2009.11.008

Cited by 112 publications

(74 citation statements)

References 32 publications

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“…For a detailed description of the vertebral body and intervertebral disc geometry evaluation, as well as rationalization of this measurements, please see Vialle et al [5], Been et al [18], De Carvalho [19] and Kimura et al [20]. For each of the five lumbar vertebrae, two lines were drawn: along the superior endplate of the vertebral body (also on the first sacral vertebra) and along the inferior endplate of the vertebral body (Fig.…”

Section: Spondylolysis and Spondylolisthesis Evaluationmentioning

confidence: 99%

Geometry of the vertebral bodies and the intervertebral discs in lumbar segments adjacent to spondylolysis and spondylolisthesis: pilot study

Been

Hunter

et al. 2010

Eur Spine J

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The objective is to evaluate the geometric parameters of vertebral bodies and intervertebral discs in spinal segments adjacent to spondylolysis and spondylolisthesis. This pilot cross-sectional study was an ancillary project to the Framingham Heart Study. The presence of spondylolysis and spondylolisthesis as well as measurements of spinal geometry were identified on CT imaging of 188 individuals. Spinal geometry measurements included lordosis angle, wedging of each lumbar vertebra and intervertebral disc. Last measurements were used to calculate RB, the sum of the lumbar L1-L5 body wedge angles; and RD, the sum of the lumbar L1-L5 intervertebral disc angles. Using Wilcoxon-Mann-Whitney test we compared the geometric parameters between individuals with no pathology and ones with spondylolysis (with no listhesis) at L5 vertebra, ones with isthmic spondylolisthesis at L5-S1 level, and ones with degenerative spondylolisthesis at L5-S1 level. Spinal geometry in individuals with spondylolysis or listhesis at L5 shows three major patterns: In spondylolysis without listhesis, spinal morphology is similar to that of healthy individuals; In isthmic spondylolisthesis there is high lordosis angle, high L5 vertebral body wedging and very high L4-5 disc wedging; In degenerative spondylolisthesis, spinal morphology shows more lordotic wedging of the L5 vertebral body, and less lordotic wedging of intervertebral discs. In conclusion, there are unique geometrical features of the vertebrae and discs in spondylolysis or listhesis. These findings need to be reproduced in larger scale study.

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Section: Spondylolysis and Spondylolisthesis Evaluationmentioning

confidence: 99%

Geometry of the vertebral bodies and the intervertebral discs in lumbar segments adjacent to spondylolysis and spondylolisthesis: pilot study

Been

Hunter

et al. 2010

Eur Spine J

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“…De Cervalho's research suggests that sitting with low back support maintains the correct angle between the vertebrae L5/S1, reducing tension and stretch of soft tissue, thereby preventing overloading of the intervertebral disc at L4/L5. According to De Cervalho, the natural position (physiological) reduces the risk of overloading and discomfort, while increased lumbar flexion predisposes the sitter to back pain syndrome [33,34]. O'Sullivan, in collaboration with physiotherapists from Germany, England, the Netherlands and Ireland, looked at prevention of lumbar-sacral spine overloading while sitting.…”

Section: Methodsmentioning

confidence: 99%

“…The study showed that both positions influence the reduction of discomfort in the lower part of the spine [35,36]. Numerous other authors have recognized the need to maintain physiological lordosis while sitting [31,32,33,34,37,38,39]. Claus [31] and Scannell [32] showed that arterial pelvis tilt provides the least loading of the spine.…”

Section: Methodsmentioning

confidence: 99%

Musculo-skeletal and pulmonary effects of sitting position – a systematic review

Szczygieł¹,

Zielonka²,

Mętel³

et al. 2017

Ann Agric Environ Med.

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Szczygieł E, Zielonka K, Mętel S, Golec J. Musculo-skeletal and pulmonary effects of sitting position -a systematic review. Ann Agric Environ Med. 2017; 24(1): 8-12. doi: 10.5604/12321966.1227647 Abstract Introduction. Year after year, we spend an increasing amount of time in a sitting position. Often, we sit with poor posture, as indicated by numerous pain syndromes within the musculoskeletal system. Several reports confirm that body posture and the amount of time spent in a seated position have extensive implications for our health. Previous studies and a literature review suggest there is limited knowledge regarding an ergonomic sitting position. Objective. The aim of the study was to analyze the research relating to a proper sitting position and the consequences of incorrect sitting posture. A database search was conducted in Science Direct, Scopus, PubMed, Medline, and Google Scholar. Selection was made on the basis of titles, then abstracts and full texts of the studies. No limits were applied to the date of publication. Conclusions. Incorrect sitting posture contributes to many disorders, especially in the cervical and lumbar spine. It also determines the work of the respiratory system. Most authors suggest that maintenance of the physiological curvature of the spine is crucial for the biomechanics of the sitting position, as well as the location of the head and position of the pelvis. It raises awareness of work-related hazards and the introduction of education on the principles of proper seating. It is necessary to draw attention to the risks associated with work performed in a sitting posture, and education on the principles of ergonomical sitting.

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“…Then, we drew an extended line of the basal area of the sacral vertebra backward. Draw two vertical lines were drawn, one on each of the 2 lines, and name the angle of the crossing angle of the 2 vertical lines, A, and was measured it for comparison 9) . To measure L4-5 disc angles, we drew a extended line backward on the top surface of the pyramid of the lumbar spine 6 from the lateral lumbar spine.…”

Section: Methodsmentioning

confidence: 99%

The Correlations between Lumbar Lordosis, L4-5 Disc Angle, L4-5 Disc Height, and the Lumbosacral Angle in L4-5 HNP Patients

Ma¹,

Gong

2010

J Phys Ther Sci

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Abstract. [Purpose] This study was conducted to examine the degree of lumbar lordosis, L 4-5 disc angle, L 4-5 disc height and the lumbosacral angle in L 4-5 herniated nucleus pulposus (HNP) patients and analyze the correlations between these variables to examine the relationship between HNP and abnormal sagittal spinal alignment.[Subjects] The study subjects were 15 lumbar spine 4-5 (L 4-5 ) HNP patients; the control group comprised 15 normal adults. [Methods] Both groups' magnetic resonance imaging scans were compared and analyzed.[Results] The HNP group showed a significantly smaller degree of lumbar lordosis, L 4-5 disc angle, L 4-5 disc height, and lumbosacral angle (p<0.05). I was also shown that as the degree of lumbar lordosis decreased, the disc angle, disc height, and lumbosacral angle decreased.[Conclusion] We found that L 4-5 HNP patients have abnormal sagittal spinal alignments.

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Lumbar Spine and Pelvic Posture Between Standing and Sitting: A Radiologic Investigation Including Reliability and Repeatability of the Lumbar Lordosis Measure

Cited by 112 publications

References 32 publications

Geometry of the vertebral bodies and the intervertebral discs in lumbar segments adjacent to spondylolysis and spondylolisthesis: pilot study

Geometry of the vertebral bodies and the intervertebral discs in lumbar segments adjacent to spondylolysis and spondylolisthesis: pilot study

Musculo-skeletal and pulmonary effects of sitting position – a systematic review

The Correlations between Lumbar Lordosis, L4-5 Disc Angle, L4-5 Disc Height, and the Lumbosacral Angle in L4-5 HNP Patients

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