Using Radiation-free Ultrasound for Screening Scoliosis among School Children in Hong Kong – A Pilot Study
Refereed conference paper presented and published in conference proceedings


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摘要Introduction: Scoliosis screening of Student Health Service, Department of Health in HK received international recognition for reliable case identification. Nevertheless, there were screened subjects with x-ray showing Cobb angle < specialist referral threshold of 20°. This study evaluated accuracy of ultrasound in identifying subjects with Cobb angle > referral threshold of 20° with the aim of further reducing x-ray exposure.

Methodology: 36 thoracic and 37 lumbar curves (mean Cobb angle 24.8±9.7°) were studied. X-ray radiography generating the x-ray-based Referral Status, i.e. “for specialist referral” or “not for specialist referral”, was used as the gold standard. The measurement by ultrasound was used to determine the ultrasound-based Referral Status. Raters were blinded to either one of the investigation measurement.

Results and Analysis: For lumbar curves, the sensitivity and specificity of the ultrasound-based evaluation were 92% and 91% respectively. For thoracic curves, the corresponding sensitivity and specificity were 84% and 91% respectively. Ultrasound skin-to-skin scanning procedure typically took less than 1 minute to complete.

Discussion and Conclusion: Results indicate ultrasound can potentially be useful to screen scoliosis and identify affected subjects for orthopaedic referral. Given that this study was confined to those with confirmed diagnosis of scoliosis, a large-scale definitive study inviting subjects directly from the pre-diagnosis phase of the screening program is warranted for defining the role of ultrasound for screening scoliosis and determining the referral status for orthopaedic management.
著者TP Lam, YS Wong, LLN Wong, BHK Yip, BKW Ng, ALH Hung, WCW Chu, KKL Lai, YP Zheng, JCY Cheng
會議名稱Hong Kong Orthopaedic Association 38th Annual Congress 2018 (HKOA 2018)
會議開始日03.11.2018
會議完結日04.11.2018
會議地點Hong Kong
會議國家/地區香港
會議論文集題名The Proceedings of Hong Kong Orthopaedic Association 38th Annual Congress 2018 (HKOA 2018)
出版年份2018
月份11
出版地Hong Kong
頁次78 - 78
語言英式英語

上次更新時間 2019-24-04 於 12:57