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Values of the angles of trunk rotation in two body positions

Introduction and Objective. Early detection of trunk rotation abnormalities in schoolchildren should be a basis for the prevention of three-plane spinal deformities. Scoliometric evaluation enables reliable, reproducible selection of schoolchildren requiring extended orthopaedic diagnostics. The accepted SOSORT recommendations for the interpretation of trunk rotation angle values need to be popularized mainly in preventive health care teams. The aim of the study was to evaluate trunk rotation angles and total trunk rotation in schoolchildren aged 8–12 years in two body positions. Materials and method. The study group consisted of 72 schoolchildren randomly recruited for the project. Angle of Trunk Rotation (ATR) was measured using Bunnell scoliometer at three levels of the spine, in two positions: standing and sitting. Based on the obtained values the Sum of Trunk Rotation (SR) was calculated. Results. Statistically significant differences in ATR at the level of Th5-TH12 were observed between standing and sitting position, and between the values of global trunk rotation. From the total number of the schoolchildren in the study, 14 (4 girls and 10 boys) were selected for performing further diagnostics. Conclusions. The study carried out in a small group of schoolchildren attending one of primary schools in Warsaw shows the importance of early screening for AIS. Measurement of ATR using an inexpensive instrument such as a scoliometer enables an objective assessment of postural immaturity and referral for further orthopaedic evaluation. However, a prerequisite for proper, reproducible assessment is the widespread education of school screening teams.