G. Vaz, P. Roussouly, E. Berthonnaud, and J. Dimnet, Sagittal morphology and equilibrium of pelvis and spine, Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc. févr, vol.11, issue.1, pp.80-87, 2002.

L. Huec, J. Aunoble, S. Pellet, N. Sibilla, F. Saddiki et al., Rôle de la balance spino-pelvienne dans les indications chirurgicales, Rev Rhum. mars, vol.78, pp.92-100, 2011.

M. Barreto, R. Pratali-r-de, C. Barsotti, F. Santos, C. Oliveira et al., Incidence of spinal deformity in adults and its distribution according SRS-Schwab classification, Coluna/Columna. 1 juin, vol.14, issue.2, pp.93-99, 2015.

B. Blondel, F. Schwab, B. Ungar, J. Smith, K. Bridwell et al., Impact of magnitude and percentage of global sagittal plane correction on health-related quality of life at 2-years followup, Neurosurgery. août, vol.71, issue.2, pp.341-349, 2012.

F. J. Schwab, B. Blondel, S. Bess, R. Hostin, C. I. Shaffrey et al., Radiographical Spinopelvic Parameters and Disability in the Setting of Adult Spinal Deformity: A Prospective Multicenter Analysis, vol.38

C. Crawford, S. D. Glassman, K. H. Bridwell, S. H. Berven, and L. Y. Carreon, The Minimum Clinically Important Difference in SRS-22R Total Score, Appearance, Activity and Pain Domains After Surgical Treatment of Adult Spinal Deformity, Spine. 15 mars, vol.40, issue.6, p.377, 2015.

D. W. Hallager, L. V. Hansen, C. R. Dragsted, N. Peytz, M. Gehrchen et al., A Comprehensive Analysis of the SRS-Schwab Adult Spinal Deformity Classification and Confounding Variables: A Prospective, Non-US Cross-sectional Study in 292 Patients, Spine. mai, vol.41, issue.10, pp.589-597, 2016.

R. Lafage, F. Schwab, V. Challier, J. K. Henry, J. Gum et al., Defining Spino-Pelvic Alignment Thresholds: Should Operative Goals in Adult Spinal Deformity Surgery Account for Age?, Spine. janv, vol.41, issue.1, pp.62-70, 2016.

B. Moal, F. Schwab, C. P. Ames, J. S. Smith, D. Ryan et al., Radiographic Outcomes of Adult Spinal Deformity Correction: A Critical Analysis of Variability and Failures Across Deformity Patterns, Spine Deform. 1 mai, vol.2, issue.3, pp.219-244, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01086753

D. H. Nielsen, M. Gehrchen, L. V. Hansen, J. Walbom, and B. Dahl, Inter-and Intra-rater Agreement in Assessment of Adult Spinal Deformity Using the Scoliosis Research Society-Schwab Classification, Spine Deform. 1 janv, vol.2, issue.1, pp.40-47, 2014.

F. Schwab, B. Blondel, E. Chay, J. Demakakos, L. Lenke et al., The comprehensive anatomical spinal osteotomy classification, Neurosurgery. janv, vol.74, issue.1, pp.112-132, 2014.

B. Moal, V. Lafage, J. S. Smith, C. P. Ames, G. Mundis et al., Clinical Improvement Through Surgery for Adult Spinal Deformity: What Can Be Expected and Who Is Likely to Benefit Most? Spine Deform, vol.3, pp.566-74, 2015.

K. Hasegawa, M. Okamoto, S. Hatsushikano, H. Shimoda, M. Ono et al., Normative values of spino-pelvic sagittal alignment, balance, age, and health-related quality of life in a cohort of healthy adult subjects, Eur Spine J, vol.25, issue.11, pp.3675-86, 2016.

J. Simon, P. Longis, and N. Passuti, Correlation between radiographic parameters and functional scores in degenerative lumbar and thoracolumbar scoliosis, Orthop Traumatol Surg Res. 1 avr, vol.103, issue.2, pp.285-90, 2017.

B. Blondel, F. Schwab, B. Ungar, J. Smith, K. Bridwell et al., Impact of magnitude and percentage of global sagittal plane correction on health-related quality of life at 2-years followup, Neurosurgery. août, vol.71, issue.2, pp.341-349, 2012.

B. Blondel, V. Lafage, S. Bess, F. Schwab, R. Hostin et al., Évaluation combinée de paramètres spinopelviens dans la prédiction du handicap chez l'adulte atteint de déformation rachidienne : résultats d'une analyse prospective, Rev Chir Orthopédique Traumatol, vol.97, issue.7, p.275, 2011.

B. Moal, N. Bronsard, K. Kebaish, B. Oheneba, I. Obeid et al., Chirurgie de révision après une Ostéotomie TransPédiculaire (OTP) pour 335 adultes atteints de déformation rachidiennes, Rev Chir Orthopédique Traumatol, vol.99, issue.7, pp.306-313, 2013.

P. Berjano, R. Bassani, G. Casero, A. Sinigaglia, R. Cecchinato et al., Failures and revisions in surgery for sagittal imbalance: analysis of factors influencing failure, Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc. nov, vol.22, issue.6, pp.853-861, 2013.

B. G. Diebo, J. J. Varghese, R. Lafage, F. J. Schwab, and V. Lafage, Sagittal alignment of the spine: What do you need to know?, Clin Neurol Neurosurg. 1 déc, vol.139, pp.295-301, 2015.

V. Lafage, J. S. Smith, S. Bess, F. J. Schwab, C. P. Ames et al., Sagittal spino-pelvic alignment failures following three column thoracic osteotomy for adult spinal deformity, Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc. avr, vol.21, issue.4, pp.698-704, 2012.

C. Yilgor, N. Sogunmez, Y. Yavuz, K. Abul, L. Boissiére et al., Relative lumbar lordosis and lordosis distribution index: individualized pelvic incidence-based proportional parameters that quantify lumbar lordosis more precisely than the concept of pelvic incidence minus lumbar lordosis, Neurosurg Focus. 1 déc, vol.43, issue.6, p.5, 2017.

P. G. Passias, C. M. Jalai, B. G. Line, G. W. Poorman, J. K. Scheer et al., Patient profiling can identify patients with adult spinal deformity (ASD) at risk for conversion from nonoperative to surgical treatment: initial steps to reduce ineffective ASD management, Spine J. 1 févr, vol.18, issue.2, pp.234-278, 2018.

C. Barton, A. Noshchenko, V. Patel, C. Cain, C. Kleck et al., Risk factors for rod fracture after posterior correction of adult spinal deformity with osteotomy: a retrospective case-series, Scoliosis, vol.10, issue.4, 2015.

J. S. Smith, E. Shaffrey, E. Klineberg, C. I. Shaffrey, V. Lafage et al., Prospective multicenter assessment of risk factors for rod fracture following surgery for adult spinal deformity: Clinical article, J Neurosurg Spine. 1 déc, vol.21, issue.6, pp.994-1003, 2014.

J. S. Smith, C. I. Shaffrey, C. P. Ames, J. Demakakos, K. Fu et al., Assessment of Symptomatic Rod Fracture After Posterior Instrumented Fusion for Adult Spinal Deformity, Neurosurgery, vol.71, issue.4, pp.862-870, 2012.

R. C. Juvinall, Fundamentals of Machine Component Design, 2007.

D. Sur,

G. Pull-a-ter, C. L. Van, and D. B. Cohen, Incidence of surgical site infection following adult spinal deformity surgery: an analysis of patient risk, Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc. juin, vol.19, issue.6, pp.982-990, 2010.

R. C. Puffer, M. Murphy, P. Maloney, D. Kor, A. Nassr et al., Increased Total Anesthetic Time Leads to Higher Rates of Surgical Site Infections in Spinal Fusions, Spine. 1 juin, vol.42, issue.11, pp.687-90, 2017.

S. Bhagat, V. Vozar, L. Lutchman, R. J. Crawford, and A. S. Rai, Morbidity and mortality in adult spinal deformity surgery: Norwich Spinal Unit experience, Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cerv Spine Res Soc. mars, vol.22, issue.1, pp.42-48, 2013.

N. J. Lee, P. Kothari, J. S. Kim, J. I. Shin, K. Phan et al., Early Complications and Outcomes in Adult Spinal Deformity Surgery: An NSQIP Study Based on 5803 Patients, Glob Spine J. août, vol.7, issue.5, pp.432-472, 2017.

M. M. Mcdowell, Z. J. Tempel, G. S. Gandhoke, N. K. Khattar, D. K. Hamilton et al., Evolution of Sagittal Imbalance Following Corrective Surgery for Sagittal Plane Deformity, Neurosurgery. 1 juill, vol.81, issue.1, pp.129-163, 2017.