• Gabriel Gutman, Hubert Labelle, Soraya Barchi, Pierre Roussouly, Éric Berthonnaud, and Jean-Marc Mac-Thiong.
• Department of Surgery, Faculty of Medicine, University of Montreal, C.P. 6128, Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada.
• Eur Spine J. 2016 Nov 1; 25 (11): 3650-3657.

PurposeTo document values for parameters of global spinal balance in asymptomatic children and adolescents.MethodsMulticenter prospective study of normal sagittal global spinal balance in Caucasian children and adolescents. Spinosacral angle (SSA), spinal tilt (ST), and C7 translation ratio were evaluated in 646 asymptomatic children and adolescents (276 males and 370 females).ResultsMean and standard deviation for SSA, ST, and C7 translation ratio were, respectively 132.1° ± 8.3°, 93.2° ± 4.6° and -0.7 ± 8.3. Mean ± 2 standard deviations were, respectively 116°-149° for SSA and 84°-102° for ST. C7 plumbline was behind the HA (hip axis) in 78 % of subjects. Correlations between global balance and age were small (-0.17 ≤ r ≤ 0.19).ConclusionAsymptomatic children and adolescents tend to stand with a stable global balance, and 95 % have an SSA and ST between 116° and 149° and 85°-102°, respectively. C7 plumbline in front of the HA is not necessarily associated with a spinal pathology.

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