Alterations of 3D acetabular and lower limb parameters in adolescent idiopathic scoliosis

Karam, Mohammad; Bizdikian, Aren Joe; Khalil, Nour; Bakouny, Ziad; Obeid, Ibrahim; Ghanimeh, Joe; Labaki, Chris; Mjaess, Georges; Karam, Aya; Skalli, Wafa; Kharrat, Khalil; Ghanem, Ismat; Assi, Ayman

doi:10.1007/s00586-020-06397-5

Cited by 5 publications

(1 citation statement)

References 25 publications

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“…Karam et al reported three-dimensional deformity of the acetabulum with AIS, as follows: The acetabulum was more abducted at the lower side vs upper side, the acetabulum was anteverted, and there was a lack of anterior coverage. These alterations were related to pelvic obliquity [ 29 ]. Therefore, to reduce the effect of pelvic obliquity as much as possible, the radiographic methods were standardized, and cases unsuitable for measurement of acetabular parameters because of pelvic rotation or pelvic lateral inclination were excluded.…”

Section: Discussionmentioning

confidence: 99%

The Proportion of Normalized Hips with Growth in Japanese Adolescents Aged > 10 years with Acetabular Dysplasia who Presented with Suspected Scoliosis

Nishimura,

Watanabe,

Taki

et al. 2023

JOIO

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Background If asymptomatic acetabular dysplasia (AD) is incidentally identified in adolescence, it is difficult to determine the appropriate follow-up or treatment strategy because the acetabulum is still developing. We investigated the rate of AD normalization at the end of acetabular growth. Methods This cross-sectional study involved 653 patients (1306 hips) aged 10–14 years with scoliosis or suspected scoliosis. All patients underwent plain standing whole-spine radiography (with the pelvis included) at the first visit. We measured the lateral center–edge angle, Sharp angle, Tönnis angle, and acetabular head index on radiographs. The criterion for AD was a lateral center–edge angle of < 20°. We extracted the data of patients aged < 12 (10–11) years and ≥ 12 (12–14) years with AD. Furthermore, we analyzed the radiographic follow-up data at 15 years of age to identify the AD normalization rate. Results AD was diagnosed in 19 hips from patients aged < 12 years and in 36 hips from patients aged ≥ 12 years. The AD normalization rate at 15 years of age was 31.6% in those diagnosed at < 12 years of age and 5.6% in those diagnosed at ≥ 12 years of age. Conclusion AD in adolescence was predictive of AD at the end of growth in 95% of cases diagnosed at ≥ 12 years of age compared with approximately 70% of cases diagnosed at < 12 years of age. Surgical treatment before completion of acetabular growth is beneficial for acetabular remodeling, but the decision to operate should be carefully evaluated in patients aged < 12 years. Graphical Abstract

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Section: Discussionmentioning

confidence: 99%

The Proportion of Normalized Hips with Growth in Japanese Adolescents Aged > 10 years with Acetabular Dysplasia who Presented with Suspected Scoliosis

Nishimura,

Watanabe,

Taki

et al. 2023

JOIO

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Validity and reliability of ultrasonographic assessment of femoral and tibial torsion in children and adolescents: a systematic review

Ruiz-Tarrazo,

Escalona-Marfil,

Pla-Campas

et al. 2024

Eur J Pediatr

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Torsional disorders of the lower limb are common in childhood, and they are one of the primary reasons parents seek consultation with healthcare providers. While clinical manoeuvres can assess femoral and tibial torsion, their reliability is medium to low. Various imaging-based techniques, including computed tomography, magnetic resonance imaging, fluoroscopy, biplanar radiology and ultrasonography, have been used to evaluate torsional alterations of the lower extremity. Among these, ultrasound assessment offers certain advantages: it is a low-cost, non-irradiating technique, which allows the follow-up of children’s torsional development. However, to the best of the authors’ knowledge, its validity and reliability have not been summarised in a systematic review. This study aims to analyse the validity and reliability of ultrasonography in determining femoral and tibial torsion in children and adolescents. A search from Medline (via PubMed), Web of Science, Scopus and CINAHL databases were performed from inception to 16 March 2023. No restrictions were placed on the publication year or language. The methodological quality of all eligible studies was independently reviewed by two authors using QUADAS and STARD checklists. Overall, 1546 articles were identified through the searches; 30 were considered eligible for full-text screening; and 8 studies were finally included in this review. The included studies were conducted in Germany, Norway and the UK. Among them, 7 studies analysed the validity of ultrasonography compared with other imaging techniques such as computed tomography, magnetic resonance imaging and biplanar X-ray, and 4 studies assessed intra- and inter-observer reliability. All the studies assessed femoral torsion, but only one of them also included tibial torsion. Conclusion: Ultrasound is a good alternative for routine evaluation and follow-up of femoral torsional alterations in children and adolescents due to its safety, accessibility and immediate results in the clinical examination room. Although ultrasound has good accuracy and reliability for routine evaluations, there is controversy about whether it is sufficient for surgical planning. In cases where greater accuracy is required, magnetic resonance imaging and biplanar radiography are the preferred imaging techniques. What is Known:• Several imaging-based techniques have been described for the assessment of torsional alterations of the lower extremity.• Computed tomography, magnetic resonance imaging, biplanar radiology and ultrasonography are the most used and studied methods. What is New:• Ultrasonography represents a good alternative for the assessment of femoral and tibial torsional alterations in children and adolescents, given its safety, accessibility and immediacy of results in the consultation room.• Its accuracy and reliability are good but not sufficient for surgical planning, in which case MRI and biplanar X-ray will be the preferred choices.

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Letter to the Editor concerning "Alterations of 3D acetabular and lower limb parameters in adolescent idiopathic scoliosis" by Karam M, et al. (Eur Spine J [2020]; 29(8):2010–2017): Does windswept deformity of the knee exist in 274 participants with adolescent idiopathic scoliosis?

Sugita,

Aizawa,

Sasaki

et al. 2023

Eur Spine J

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Alterations of 3D acetabular and lower limb parameters in adolescent idiopathic scoliosis

Cited by 5 publications

References 25 publications

The Proportion of Normalized Hips with Growth in Japanese Adolescents Aged > 10 years with Acetabular Dysplasia who Presented with Suspected Scoliosis

The Proportion of Normalized Hips with Growth in Japanese Adolescents Aged > 10 years with Acetabular Dysplasia who Presented with Suspected Scoliosis

Validity and reliability of ultrasonographic assessment of femoral and tibial torsion in children and adolescents: a systematic review

Letter to the Editor concerning "Alterations of 3D acetabular and lower limb parameters in adolescent idiopathic scoliosis" by Karam M, et al. (Eur Spine J [2020]; 29(8):2010–2017): Does windswept deformity of the knee exist in 274 participants with adolescent idiopathic scoliosis?

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