Femoral and Tibial Torsion Measurement in Children and Adolescents: Comparison of 3D Models Based on Low-Dose Biplanar Radiography and Low-Dose CT

Rosskopf, Andrea B.; Ramseier, Leonhard E.; Sutter, Reto; Pfirrmann, Christian W. A.; Buck, Florian M.

doi:10.2214/ajr.13.11103

Cited by 56 publications

(50 citation statements)

References 33 publications

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“…The results in our study comparing axial CT cuts and BR 3D reconstructions were similar to those of similar recent studies [3,17,18] in showing high inter-and intraobserver agreement. The study by Buck et al [17] was on adult patients about to undergo total knee replacement.…”

Section: Discussionsupporting

confidence: 91%

“…The 95 % confidence limit for the anatomic reference was 7.3-12.0°com-pared to 18.1-28.0°for biplanar radiography. There was also increased inter-and intraobserver variability with biplanar radiographs compared to CT. Our study and others [3,16,18,22] show that with the new imaging software available, the measurements from 3D reconstructions of biplanar radiography are accurate and reproducible.…”

Section: Discussionsupporting

confidence: 65%

“…Version measurements were made from each BR 3D reconstruction using sterEOS software, which was introduced for torsional measurements by Chaibi et al [19]) and has been used in several studies [3,17,18). The two observers had no experience in sterEOS prior to the study, but underwent appropriate training before making study measurements.…”

Section: Methodsmentioning

confidence: 99%

“…One such technology is the EOS imaging system and sterEOS software (EOS Imaging, Paris, France), which provides imaging of lower limb torsional alignment at a 4-to 30-times decreased radiation dose compared to a 16-slice CT scanner [16]. Several studies have compared femoral version calculations from CT to measurements made from BR 3D reconstructions [3,14,17,18], but several questions remain. Our primary goal was to assess whether positioning of the patient can contribute to errors in interpreting biplanar radiography.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Three-dimensional biplanar radiography as a new means of accessing femoral version: a comparitive study of EOS three-dimensional radiography versus computed tomography

Pomerantz

Glaser

Doan³

et al. 2014

Skeletal Radiol

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 65%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Three-dimensional biplanar radiography as a new means of accessing femoral version: a comparitive study of EOS three-dimensional radiography versus computed tomography

Pomerantz

Glaser

Doan³

et al. 2014

Skeletal Radiol

View full text Add to dashboard Cite

show abstract

“…[156][157][158] Following a simple step-by-step postprocessing procedure, it is also possible to measure femoral and tibial torsion in adults and children. [159][160][161][162] Patients with scoliosis are generally examined periodically to monitor changes and to recognize the best time for corrective surgery. Additionally, postoperative follow-up examinations are often needed for long-term evaluation of treatment success.…”

Section: Sutter Et Almentioning

confidence: 99%

Internal Derangements of Joints—Past, Present, and Future

Sutter¹,

Stoel

Buck

et al. 2015

Investigative Radiology

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The past 50 years have transformed imaging of the joints. Whereas musculoskeletal imaging consisted predominantly of conventional radiography when Investigative Radiology was founded as a journal, the arrival of new imaging modalities, and above all, the introduction of magnetic resonance imaging, resulted in a paradigm shift: In addition to visualizing osseous structures, now the detailed depiction of soft tissue structures became part of routine clinical imaging and had a major impact on understanding pathophysiology and patient treatment. This article analyzes the patterns of innovation that were essential for the transformation of musculoskeletal radiology. Furthermore, state-of-the-art joint imaging is described through 9 key concepts, including both cutting-edge clinical applications as well as topics at the forefront of musculoskeletal research. Eventually, emerging trends are outlined that will likely shape musculoskeletal radiology in the next decades. The past 50 years have transformed imaging of the joints. Whereas musculoskeletal imaging consisted predominantly of conventional radiography when Investigative Radiology was founded as a journal, the arrival of new imaging modalities, and above all, the introduction of magnetic resonance imaging, resulted in a paradigm shift: In addition to visualizing osseous structures, now the detailed depiction of soft tissue structures became part of routine clinical imaging and had a major impact on understanding pathophysiology and patient treatment. This article analyzes the patterns of innovation that were essential for the transformation of musculoskeletal radiology. Furthermore, state-of-the-art joint imaging is described through 9 key concepts, including both cutting-edge clinical applications as well as topics at the forefront of musculoskeletal research. Eventually, emerging trends are outlined that will likely shape musculoskeletal radiology in the next decades.

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Determination and correlation of lower limb anatomical parameters and bone age during skeletal growth (based on 1005 cases)

et al. 2016

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The aim of this study was to evaluate bone age and its correlation with the lower limbs' developing skeletal anatomy during growth. 1005 children and young adults were evaluated for bone age and 14 different parameters measured on lower-limb reconstructions from radiological examinations carried out with an EOS 2D/3D system in the course of routine orthopedic indicated diagnostic practice. Cervical vertebral morphology evaluation for bone age using the Hassel-Farman method, which describes six stages of maturity, was selected. Intra- and inter-observer reliability tests for this method, and for the EOS 3D reconstructions were performed. Statistical analysis were performed using Spearman correlation, multiple linear regression, and t-test. The intra- and inter-observer reliability of the Hassel-Farman method and the EOS 3D lower-limb reconstruction were found to be excellent. Interestingly one bone age stage could include individuals across a 12.1 year range, and conversely individuals of the same calendar age could be of one of 3.2 different bone age stages. In the prepubertal age groups all six bone stages could be observed. Bone age revealed a stronger relationship, lower standard deviations with groups and proved to be a better discriminating variable than the calendar age by collodiaphyseal angle, femoral, and tibial torsion, femorotibial rotation, and mechanical tibiofemoral angle. Bone age is an indicator of skeletal maturity and may more accurately describe the growth of some lower limb parameters. As a result we suggest the consideration of bone age when evaluating lower-limb biomechanic-anatomical parameters. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:1431-1441, 2017.

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Femoral and Tibial Torsion Measurement in Children and Adolescents: Comparison of 3D Models Based on Low-Dose Biplanar Radiography and Low-Dose CT

Abstract: Femoral and tibial torsion measurements in children using 3D models based on biplanar radiography are comparable to CT measurement results. Despite skeletal immaturity, torsion measurements in children on biplanar radiography seem to be as reliable as those on CT images.

Cited by 56 publications

References 33 publications

Three-dimensional biplanar radiography as a new means of accessing femoral version: a comparitive study of EOS three-dimensional radiography versus computed tomography

Three-dimensional biplanar radiography as a new means of accessing femoral version: a comparitive study of EOS three-dimensional radiography versus computed tomography

Internal Derangements of Joints—Past, Present, and Future

Determination and correlation of lower limb anatomical parameters and bone age during skeletal growth (based on 1005 cases)

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