Abstract
Purpose
Distal radius and ulna (DRU) classification scheme has been proposed for predicting skeletal maturity in patients with idiopathic scoliosis (IS). However, the utilization of DRU classification scheme in the assessment of growth peak and curve progression in IS was still inconclusive. This study aimed to correlate the distal radius and ulna stages with several indicators for growth potential and to evaluate the predictive value of DRU system for curve progression in braced female IS patients.
Methods
This was a consecutive longitudinal study including physically immature IS girls receiving standardized bracing treatment and regularly followed up every 3–6 months until brace weaning. The following data of each visit were collected: chronologic age, standing height, Cobb angle, spinal length, Risser sign, digital skeletal age (DSA) scores and DRU scores. The height velocity (HV), spinal growth velocity (SGV) and angle velocity (AV) of each visit were calculated. The correlation among radius stage, ulna stage, Risser sign, height, spinal length, HV, SGV and AV was studied.
Results
Forty braced IS girls with 349 longitudinal whole spine X-rays were reviewed. The average DRU scores at initial visit were R6.5 ± 1.1 and U4.5 ± 1.2 for radius and ulna, respectively. Both the radius stages between R5 and R8 and ulna stages between U3 and U6 indicated high SGV and high HV. The DSA scores were 402.1 ± 48.8 and 430.8 ± 44.4 at R7 and R8, respectively. The AV values were − 5.9 ± 12.4°/y and − 0.4 ± 1.5°/y at R5 and R6, which increased to 5.9 ± 17.3°/y, 3.1 ± 15.7°/y and 4.2 ± 12.2°/y at R7, R8 and R9, respectively. The DSA scores were 387.3 ± 65.7 for U5 and 432.9 ± 48.5 for U6, respectively. The AV values were − 3.1 ± 0.3°/y at U3, − 1.7 ± 9.3°/y at U4, 2.3 ± 16.1°/y at U5, 5.4 ± 15.5°/y at U6 and 4.4 ± 12.9°/y at U7.
Conclusions
Both distal radius and ulna scores correlate with the longitudinal growth potential, and thus, the DRU scoring scheme is an alternative predictor for growth potential and curve progression in girls with IS.
Graphic abstract
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References
Sun X, Wang B, Qiu Y, Zhu ZZ, Zhu F, Yu Y, Qian BP, Ma WW, Liu Z, Mao SH (2010) Outcomes and predictors of brace treatment for girls with adolescent idiopathic scoliosis. Orthop Surg 2:285–290. https://doi.org/10.1111/j.1757-7861.2010.00101.x
Lenke LG, Betz RR, Harms J, Bridwell KH, Clements DH, Lowe TG, Blanke K (2001) Adolescent idiopathic scoliosis: a new classification to determine extent of spinal arthrodesis. J Bone Joint Surg Am 83-A:1169–1181
Lonstein JE, Winter RB (1994) The Milwaukee brace for the treatment of adolescent idiopathic scoliosis. A review of one thousand and twenty patients. J Bone Joint Surg Am 76:1207–1221
Nault ML, Parent S, Phan P, Roy-Beaudry M, Labelle H, Rivard M (2010) A modified Risser grading system predicts the curve acceleration phase of female adolescent idiopathic scoliosis. J Bone Joint Surg Am 92:1073–1081. https://doi.org/10.2106/jbjs.h.01759
Wever DJ, Tonseth KA, Veldhuizen AG, Cool JC, van Horn JR (2000) Curve progression and spinal growth in brace treated idiopathic scoliosis. Clinical Orthop Relat Res 377:169–179
Mao SH, Li HB, Jiang J, Sun X, Cheng JC, Qiu Y (2011) An updated analysis of pubertal linear growth characteristics and age at menarche in ethnic Chinese. American J Hum Biol 23:132–137. https://doi.org/10.1002/ajhb.21116
Hung ALH, Chau WW, Shi B, Chow SK, Yu FYP, Lam TP, Ng BKW, Qiu Y, Cheng JCY (2017) Thumb ossification composite index (TOCI) for predicting peripubertal skeletal maturity and peak height velocity in idiopathic scoliosis: a validation study of premenarchal girls with adolescent idiopathic scoliosis followed longitudinally until skeletal maturity. J Bone Joint Surg Am 99:1438–1446. https://doi.org/10.2106/jbjs.16.01078
Hung AL, Shi B, Chow SK, Chau WW, Hung VW, Wong RM, Liu KL, Lam TP, Ng BK, Cheng JC (2018) Validation study of the thumb ossification composite index (TOCI) in idiopathic scoliosis: a stage-to-stage correlation with classic Tanner-Whitehouse and sanders simplified skeletal maturity systems. J Bone Joint Surg Am 100(13):88. https://doi.org/10.2106/jbjs.17.01271
Loncar-Dusek M, Pecina M, Prebeg Z (1991) A longitudinal study of growth velocity and development of secondary gender characteristics versus onset of idiopathic scoliosis. Clin Orthop Relat Res 270:278–282
Busscher I, Kingma I, Wapstra FH, Bulstra SK, Verkerke GJ, Veldhuizen AG (2011) The value of shoe size for prediction of the timing of the pubertal growth spurt. Scoliosis 6:1. https://doi.org/10.1186/1748-7161-6-1
Lee WT, Cheung CS, Tse YK, Guo X, Qin L, Lam TP, Ng BK, Cheng JC (2005) Association of osteopenia with curve severity in adolescent idiopathic scoliosis: a study of 919 girls. Osteoporos Int 16:1924–1932. https://doi.org/10.1007/s00198-005-1964-7
Tanner JM, Whitehouse RH (1976) Clinical longitudinal standards for height, weight, height velocity, weight velocity, and stages of puberty. Arch Dis Child 51:170–179
Tanner JM, Whitehouse RH, Marubini E, Resele LF (1976) The adolescent growth spurt of boys and girls of the Harpenden growth study. Ann Hum Biol 3:109–126
Sanders JO, Browne RH, McConnell SJ, Margraf SA, Cooney TE, Finegold DN (2007) Maturity assessment and curve progression in girls with idiopathic scoliosis. J Bone Joint Surg Am 89:64–73. https://doi.org/10.2106/jbjs.f.00067
Luk KD, Saw LB, Grozman S, Cheung KM, Samartzis D (2014) Assessment of skeletal maturity in scoliosis patients to determine clinical management: a new classification scheme using distal radius and ulna radiographs. Spine J Off J N Am Spine Soc 14:315–325. https://doi.org/10.1016/j.spinee.2013.10.045
Cheung JP, Samartzis D, Cheung PW, Cheung KM, Luk KD (2016) Reliability analysis of the distal radius and ulna classification for assessing skeletal maturity for patients with adolescent idiopathic scoliosis. Global Spine J 6:164–168. https://doi.org/10.1055/s-0035-1557142
Xu L, Qiu X, Sun X, Mao S, Liu Z, Qiao J, Qiu Y (2011) Potential genetic markers predicting the outcome of brace treatment in patients with adolescent idiopathic scoliosis. European Spine Journal 20:1757–1764. https://doi.org/10.1007/s00586-011-1874-7
Nachemson AL, Peterson LE (1995) Effectiveness of treatment with a brace in girls who have adolescent idiopathic scoliosis. A prospective, controlled study based on data from the Brace Study of the Scoliosis Research Society. J Bone Joint Surg Am 77:815–822
Richards BS, Bernstein RM, D’Amato CR, Thompson GH (2005) Standardization of criteria for adolescent idiopathic scoliosis brace studies: SRS Committee on Bracing and Nonoperative Management. Spine 30:2068–2075. https://doi.org/10.1097/01.brs.0000178819.90239.d0discussion 2076–2067
Shi B, Mao S, Xu L, Sun X, Zhu Z, Qian B, Liu Z, Cheng JC, Qiu Y (2014) Integrated multi-dimensional maturity assessments predicting the high risk occurrence of peak angle velocity during puberty in progressive female idiopathic scoliosis. J Spinal Disord Tech. https://doi.org/10.1097/bsd.0000000000000203
Risser JC (1958) The Iliac apophysis; an invaluable sign in the management of scoliosis. Clin Orthop 11:111–119
Christoforidis A, Badouraki M, Katzos G, Athanassiou-Metaxa M (2007) Bone age estimation and prediction of final height in patients with beta-thalassaemia major: a comparison between the two most common methods. Pediatr Radiol 37:1241–1246. https://doi.org/10.1007/s00247-007-0656-1
Parent S, Newton PO, Wenger DR (2005) Adolescent idiopathic scoliosis: etiology, anatomy, natural history, and bracing. Instr Course Lect 54:529–536
Ylikoski M (2005) Growth and progression of adolescent idiopathic scoliosis in girls. J Pediatr Orthop B 14:320–324
Katz DE, Durrani AA (2001) Factors that influence outcome in bracing large curves in patients with adolescent idiopathic scoliosis. Spine 26:2354–2361
Upadhyay SS, Nelson IW, Ho EK, Hsu LC, Leong JC (1995) New prognostic factors to predict the final outcome of brace treatment in adolescent idiopathic scoliosis. Spine 20:537–545
Peterson LE, Nachemson AL (1995) Prediction of progression of the curve in girls who have adolescent idiopathic scoliosis of moderate severity. Logistic regression analysis based on data from The Brace Study of the Scoliosis Research Society. J Bone Joint Surg Am 77:823–827
Sanders JO (2007) Maturity indicators in spinal deformity. J Bone Joint Surg Am 89(Suppl 1):14–20. https://doi.org/10.2106/jbjs.f.00318
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This work was supported by the Natural Science Foundation of Youth Fund Projects of Jiangsu Province (BK20170126).
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Li, Y., Mao, S., Shi, B. et al. Utilization of distal radius and ulna classification scheme in predicting growth peak and curve progression in idiopathic scoliosis girls undergoing bracing treatment. Eur Spine J 29, 770–778 (2020). https://doi.org/10.1007/s00586-020-06289-8
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DOI: https://doi.org/10.1007/s00586-020-06289-8