Abstract
Abstract
Background
Thoracic scoliosis has been shown to be associated with hypokyphosis in adolescent idiopathic scoliosis (AIS). However, the relationship of sagittal spino-pelvic parameters with different coronal curve patterns and their influence on patient-perceived quality of life is unknown. This study aims to determine the association between coronal and sagittal malalignment in patients with AIS and to determine their effects on SRS-22r scores.
Methods
A cross-sectional study was conducted on 1054 consecutive patients with AIS. The coronal Cobb angle, thoracic kyphosis (TK), lumbar lordosis (LL), pelvic incidence (PI), PI-LL mismatch (PI-LL), pelvic tilt (PT), and sacral slope (SS) were measured on standing radiographs. The coronal Cobb angle (mild: 10–20°; moderate: > 20–40°; severe: > 40°) and PI (low: < 35°; average: 35–50°; high: > 50°) were divided into 3 sub-groups for comparison. Relationship between coronal curve magnitudes and sagittal parameters was studied as was their association with SRS-22r scores.
Results
Low PI had smaller SS (30.1 ± 8.3° vs 44.8 ± 7.7°; p < 0.001), PT (− 0.3 ± 8.1° vs 14.4 ± 7.5°; p < 0.001), and LL (42.0 ± 13.2° vs 55.1 ± 10.6°; p < 0.001), negative PI-LL mismatch (− 12.1 ± 13.1° vs 4.1 ± 10.5°; p < 0.001) as compared to large PI. There were no significant relationships with PI and TK (p = 0.905) or curve magnitude (p = 0.431). No differences in sagittal parameters were observed for mild, moderate or severe coronal Cobb angles. SRS-22r scores only correlated with coronal Cobb angle and larger Cobb angles were negatively correlated with the function, appearance and pain domains.
Conclusions
The sagittal profile for AIS is associated with the pelvic parameters especially PI but not with the coronal curve pattern. All patients have a similar TK regardless of coronal curve type. However, it appears that the coronal deformity is a greater influence on quality of life outcomes especially those > 40°.
Funder
General Research Fund of the Research Grants Council
Innovation and Technology Support Programme
Sanming Project of Medicine in Shenzhen
Publisher
Springer Science and Business Media LLC
Subject
Orthopedics and Sports Medicine,Rheumatology
Reference38 articles.
1. Chung N, Cheng YH, Po HL, Ng WK, Cheung KC, Yung HY, et al. Spinal phantom comparability study of Cobb angle measurement of scoliosis using digital radiographic imaging. J Orthop Translat. 2018;15:81–90.
2. Wong AYL, Samartzis D, Cheung PWH, Cheung JPY. How Common Is Back Pain and What Biopsychosocial Factors Are Associated With Back Pain in Patients With Adolescent Idiopathic Scoliosis? Clin Orthop Relat Res. 2019;477(4):676–86.
3. Luk KD, Vidyadhara S, Lu DS, Wong YW, Cheung WY, Cheung KM. Coupling between sagittal and frontal plane deformity correction in idiopathic thoracic scoliosis and its relationship with postoperative sagittal alignment. Spine (Phila Pa 1976). 2010;35(11):1158–64.
4. Barnes D, Stemper BD, Yogananan N, Baisden JL, Pintar FA. Normal coupling behavior between axial rotation and lateral bending in the lumbar spine - biomed 2009. Biomed Sci Instrum. 2009;45:131–6.
5. Eyvazov K, Samartzis D, Cheung JP. The association of lumbar curve magnitude and spinal range of motion in adolescent idiopathic scoliosis: a cross-sectional study. BMC Musculoskelet Disord. 2017;18(1):51.
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