The Torsion Meter: A Critical Review

Barsanti, Christopher M.; deBari, Anthony; Covino, Brian M.

doi:10.1097/01241398-199010040-00020

Cited by 29 publications

(8 citation statements)

References 0 publications

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“…The error values obtained with the manual method confirm published data showing mean values between 5°and 6° [15][16][17]. However, better accuracy (smaller RMS error) and precision (smaller SD) were provided by the digital method.…”

Section: Discussionsupporting

confidence: 78%

Validity and reliability of a computer method to estimate vertebral axial rotation from digital radiographs

2009

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Axial vertebral rotation, an important parameter in the assessment of scoliosis may be identified on X-ray images. In line with the advances in the field of digital radiography, hospitals have been increasingly using this technique. The objective of the present study was to evaluate the reliability of computer-processed rotation measurements obtained from digital radiographs. A software program was therefore developed, which is able to digitally reproduce the methods of Perdriolle and Raimondi and to calculate semi-automatically the rotation degree of vertebra on digital radiographs. Three independent observers estimated vertebral rotation employing both the digital and the traditional manual methods. Compared to the traditional method, the digital assessment showed a 43% smaller error and a stronger correlation. In conclusion, the digital method seems to be reliable and enhance the accuracy and precision of vertebral rotation measurements.

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Section: Discussionsupporting

confidence: 78%

Validity and reliability of a computer method to estimate vertebral axial rotation from digital radiographs

2009

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“…The more commonly referred to Nash and Moe 9 technique of assessing rotation in grades would not reveal the more subtle rotational variations. Barsanti et al, 10 Weiss, 11 and Omeroglu et al 12 each reviewed the interobserver and intraobserver variability of the Perdriolle measurement technique and found it accurate within 5°in Ͼ90% of measurements. Richards 13 found the technique to be only accurate within 10°.…”

Section: Discussionmentioning

confidence: 97%

Pedicle Rotation in Scoliosis: A Marker for Occult Intrathecal Abnormalities

Hooker¹,

Yandow²,

Fillman³

et al. 2006

Spine

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“…Barsanti et al found that the Perdriolle torsion meter may be an effective method of measuring vertebral rotation. 41 In their study, 9 thoracic vertebrae from 3 disarticulated spines were individually rotated from 0°to 60°and measured with a torsion meter by 3 investigators. Errors were made in 41% of the measurements, of which 92% were within Ϯ5°.…”

Section: Discussionmentioning

confidence: 99%