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Prevalence angle of trunk rotation in adolescents: a study from an idiopathic scoliosis school screening in Surabaya

  • Dicky Lukman Rangkuti ,
  • Eko Agus Subagio ,
  • Budi Utomo ,
  • Muhammad Arifin Parenrengi ,
  • Wihasto Suryaningtyas ,
  • Paulus Rahardjo ,


Link of Video Abstract:


Background: Adolescent idiopathic scoliosis (AIS) is the most common type of scoliosis. The condition begins in early puberty, affects 1-3% of adolescents, and randomly affects young women. Scoliosis screening is still a hot topic discussed by various researchers, especially in the school child population, and it is still an important preventive program to reduce the progression of spinal deformity. This study aims to determine the prevalence rate angle of trunk rotation in idiopathic scoliosis school screening in Surabaya.

Methods: This research is a cross-sectional study with a descriptive observational type using surveys and examinations. In this study, the sample used was 405 junior high school students in Surabaya. The sampling method is cluster random sampling, where each member of the population is divided into subclasses with the school as the cluster. Samples were randomly selected from each area of Surabaya. Data were analyzed using SPSS version 25.0 for Windows.

Results: These data found that the age distribution of the scoliosis screening study was an average of 13.87 years and a median of 14 years. The gender distribution of the scoliosis screening study sample was more female, 211 samples (52.1%) compared to men, 194 samples (47.9%). The distribution was obtained from 405 total samples; 2 positive samples were obtained during the Adam's Forward Bend Test, both 14 years old and female. On examination with a scoliometer, both showed 9 and 11 degrees, respectively. The prevalence angle of trunk rotation in idiopathic scoliosis school screening in Surabaya was 0.49%.

Conclusion: This figure is lower than several studies conducted in several other countries. This may be obtained due to differences in the number of research samples undertaken in each country.


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How to Cite

Rangkuti, D. L., Subagio, E. A., Utomo, B., Parenrengi, M. A., Suryaningtyas, W., & Rahardjo, P. (2023). Prevalence angle of trunk rotation in adolescents: a study from an idiopathic scoliosis school screening in Surabaya. Bali Medical Journal, 12(3), 3176–3179.




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Dicky Lukman Rangkuti
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Eko Agus Subagio
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Budi Utomo
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Muhammad Arifin Parenrengi
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Wihasto Suryaningtyas
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Paulus Rahardjo
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