Radiographic Evaluation of Scoliosis: <i>Review</i>

Malfair, David; Flemming, Anne K.; Dvorak, Marcel F.; Munk, Peter L.; Vertinsky, Alexandra T.; Heran, Manraj K.S.; Graeb, Doug

doi:10.2214/ajr.07.7145

Cited by 126 publications

(85 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The precision or measurement error of Cobb angle measurements of scoliotic curves is known to be 5° [6][7][8][9][10]. Little information is available about rotational malpositioning of the spine at the time of image acquisition and its influence on Cobb angle measurement errors.…”

Section: Discussionmentioning

confidence: 99%

“…The first error may occur by an incorrect position of the patient, while performing the X-ray (positioning error) and the second by measuring the angle on the radiograph (measurement error). Later has been investigated intensively and is suggested to be around ±5° [6][7][8][9]. But positional errors are less investigated although the theoretically could reach up to 20°-30° [6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Later has been investigated intensively and is suggested to be around ±5° [6][7][8][9]. But positional errors are less investigated although the theoretically could reach up to 20°-30° [6][7][8][9][10][11][12][13]. In vivo investigations do not exist to the best knowledge of the authors, as unnecessary high radiation exposure did probably prohibit such a & Samuel L. Schmid samuel.schmid@balgrist.ch study from an ethical point of view.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Radiographic measurement error of the scoliotic curve angle depending on positioning of the patient and the side of scoliotic curve

et al. 2015

View full text Add to dashboard Cite

Background The Cobb angle measurement is well established for the measurement of coronal deformity aspect of scoliotic curves. The effect of positional differences in relation to the apex side of the scoliosis is not yet fully quantified. While theoretically plausible that positioning error with rotation toward the apex of the scoliosis would decrease the Cobb angle, the relations are not investigated yet and were object of this study. Materials and methods Multiple measurements of the Cobb angle were performed, while turning a spine-pelvic cadaveric specimen with a right-sided thoracic scoliosis of 47°(in neutral position) from 45°to -45°in steps of 5°u sing biplanar radiography. Statistical methods were applied to find the critical position, in which measurement errors potentially become clinically relevant (Cobb angle deviation [5°). Results Turning the specimen to the right (toward the apex of the scoliosis) produced during the first -15°of rotation, a Cobb angle ranging from 47°to 45°. At -20°, the Cobb angle was 42°, at -25°rotation 37°and at -30°r otation 36°. Above -30°rotation, the measured Cobb angle decreased to 36°(77 % of the original Cobb angle). No relevant differences were found by rotating the specimen to the left (away from the apex) (47°at neutral rotation and 44°at maximal error rotation of ?45°). Conclusion The influence of rotational misplacement of the patient at the time of image acquisition on Cobb angle measurements is negligible for a rotational misplacement of ±20°of rotation for a idiopathic right-sided thoracic scoliosis of 47°. Over 20°of rotational misplacement of the patient toward the apex of the scoliosis falsely decreases the Cobb angle.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Radiographic measurement error of the scoliotic curve angle depending on positioning of the patient and the side of scoliotic curve

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Many different techniques have been proposed to measure the rotation of vertebrae in conventional radiography [4]. Although AVR is considered to be important in predicting the risk of progression and planning vertebra levels to be instrumented during surgery [9], its presence is commonly noted only qualitatively in a clinical setting.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Cobb angle, spinous process angle (SPA) and apical vertebrae rotation (AVR) on posteroanterior radiographs in adolescent idiopathic scoliosis (AIS)

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Despite the enormous advances in cross-sectional imaging over the past decades, radiography still remains as the mainstay of scoliosis evaluation (6). Consequently, we used radiographic parameters of the shoulder imbalance to explore their potential correlations with scoliosis curvatures.…”

Section: Objectivesmentioning

confidence: 99%

Determinants of Pre-Operative Shoulder Imbalance in Patients with Adolescent Idiopathic Scoliosis

et al. 2017

View full text Add to dashboard Cite

Background: Disfiguring complications of adolescent idiopathic scoliosis (AIS) could significantly affect the patients' satisfaction. In this regard, shoulder imbalance has recently received much attention in spite of its poorly understood challenge. Objectives: While the majority of previous studies have attempted to explore preoperative determinants of postoperative shoulder imbalance, in this study we aimed to investigate the factors correlated with the preoperative shoulder imbalance. Methods: A total of 72 AIS patients with no previous history of corrective surgery took part in this study. The study sample comprised

show abstract

Radiographic Evaluation of Scoliosis: Review

Cited by 126 publications

References 59 publications

Radiographic measurement error of the scoliotic curve angle depending on positioning of the patient and the side of scoliotic curve

Radiographic measurement error of the scoliotic curve angle depending on positioning of the patient and the side of scoliotic curve

Correlation between Cobb angle, spinous process angle (SPA) and apical vertebrae rotation (AVR) on posteroanterior radiographs in adolescent idiopathic scoliosis (AIS)

Determinants of Pre-Operative Shoulder Imbalance in Patients with Adolescent Idiopathic Scoliosis

Contact Info

Product

Resources

About