European Spine Journal

, Volume 6, Issue 3, pp 163–167 | Cite as

Study of the course of the incidence angle during growth

  • Paolo Mangione
  • Dominique Gomez
  • Jacques Senegas
Original Article

Abstract

Standing posture is made possible by hip extension and lumbar lordosis. Lumbar lordosis is correlated with pelvic parameters, such as the declivity angle of the upper surface of the sacrum and the incidence angle, which determine the sagittal morphotype. Incidence angle, which is different for each individual, is known to be very important for upright posture, but its course during life has not yet been established. Incidence angle was measured on radiographs of 30 fetuses, 30 children and 30 adults, and results were analysed using the correlation coefficientr and Student's t test. A statistically significant correlation between age and incidence angle was observed. Incidence angle considerably increases during the first months, continues to increase during early years, and stabilizes around the age of 10 years. Incidence is a mark of bipedism, and its role in sagittal balance is essential.

Key words

Sagittal balance Sacral inclination or slope Pelvis Gravity Sagittal plane compensatory mechanisms Posture 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Abitbol MM (1987) Evolution of the lumbosacral angle. Am J Physiol Anthropol 72: 361–372Google Scholar
  2. 2.
    Bagnall KM, Harris PF, Jones PR (1982) A radiographic study of the growth in width of the human fetal vertebral column. Anat Rec 204: 265–270Google Scholar
  3. 3.
    Bogduk N, Macintosh JE, Pearcy MJ (1992) A universal model of the lumbar back muscles in the upright position. Spine 17: 897–913Google Scholar
  4. 4.
    Delmas A (1972) L'homme devant Fhominisation. Q Anat Prat [Suppl 28] 1–4: 22–56Google Scholar
  5. 5.
    During J, Goudfrooij H, Keesen W, Beeker Th W, Crowe A (1985) Toward standards for posture. Postural characteristics of the lower back system in normal and pathological conditions. Spine 10: 83–87Google Scholar
  6. 6.
    Duval-Beaupère G, Schmidt C, Cosson PH (1992) A barycentremetric study of the sagittal shape of spine and pelvis. Ann Biomed Eng 20: 451–462Google Scholar
  7. 7.
    Gelb DE, Lenke LG, Bridwell KH, Blanke K, McEnery KW (1995) An analysis of sagittal spinal alignment in 100 asymptomatic middle and older aged volunteers. Spine 20: 1351–1358Google Scholar
  8. 8.
    Legaye J, Hecquet J, Marty C, Duval-Beaupere G (1993) Equilibre sagittal du rachis. Relations entre bassin et courbures rachidiennes sagittales en position debout. Rachis 5: 215–226Google Scholar
  9. 9.
    Mamay T (1988) Equilibre du rachis et du bassin. Cah Enseign SOFCOT 31, pp 281–313Google Scholar
  10. 10.
    Milne JS, Lauder IJ (1974) Age effects in kyphosis and lordosis in adults. Ann Human Biol 1: 327–337Google Scholar
  11. 11.
    Runge H, Zippel H (1976) Untersuchungen zur Entwicklung des Wirbelbogens im Lumbosacralbereich. Beitr Orthop Traumatol 23: 19–29Google Scholar
  12. 12.
    Sturesson B, Selvic G, Udén A (1989) Movements of the sacroiliac joints. A roentgen stereophotogrammetric analysis. Spine 14: 162–165Google Scholar
  13. 13.
    Voutsinas SA, MacEwan GD (1986) Sagittal Profiles of the spine. Clin Orthop 210: 235–242Google Scholar

Copyright information

© Springer-Verlag 1997

Authors and Affiliations

  • Paolo Mangione
    • 1
  • Dominique Gomez
    • 1
  • Jacques Senegas
    • 1
  1. 1.Department of Spine SurgeryPr J Senegas, Pellegrin Tripode HospitalBordeaux CedexFrance

Personalised recommendations