A Comparison on the Sagittal Alignment in Chinese AIS girls by EOS Radiography Undergoing a Posterior Spinal Fusion Surgery: A Pre- and Post-Surgical Comparison
Refereed conference paper presented and published in conference proceedings


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摘要Introduction: Adolescent idiopathic scoliosis (AIS) is the most common pediatric spinal deformity, affecting 3% of adolescents. Patients with progressive curve often needs surgical correction. The purpose of surgery is to reduce scoliotic curvature, however, it often neglects the importance on sagittal alignment. An undesirable sagittal alignment may lead to long term complications such as pain and aggravated spinal degeneration. In this study, we aimed to evaluate the sagittal spinopelvic alignment in AIS subjects before and after surgery.

Methodology: Total 17 pre-op AIS girls with a primary right thoracic curve (Risser sign ≥4) and 17 healthy girls were recruited. All subjects underwent EOS biplanar radiographs at baseline with radiological parameters comparisons. Thus, AIS subjects underwent two additional follow-up radiological comparisons at: 1) 1- month post-op; 2) ≥3months follow-up.

Results and Analysis: There was significant difference on radiological parameters between pre-op AIS and controls. Cobb angle was significantly reduced after surgery, while lumbar lordosis, pelvic incidence and sacral slope significantly improved at post-op stage. But these parameters were reverted to their initial status at follow-up stage. In addition, cervical lordois, thoracic kyphosis and pelvic obliquity remained significantly different from controls even after surgery.

Discussion and Conclusion: Our results reaffirmed the presence of significant reversed cervical lordosis, thoracic hypokyphosis, lumbar hyperlordosis in AIS patients. Despite an excellent improvement in coronal profile, most of sagittal spinopelvic parameters remained significantly different from controls. Although most of the sagittal parameters did show initial improvement after surgery, some of them would eventually revert to profile similar at pre-op stage and should be aware in surgical correction.
著者KH Yeung, ZS Hu, GCW Man, TP Lam, BKW Ng, JCY Cheng, WCW Chu
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77 - 77
語言英式英語

上次更新時間 2019-24-04 於 12:31