The torsion meter provides an effective method for measuring vertebral rotation in vitro.
Torsion meter accuracy in animal models warrants further validation; leaves open clinical use for vertebral rotation pending human studies.
Summary: The purpose of this study was to determine how effectively the torsion meter measures vertebral rotation. Nine thoracic vertebrae from three disarticulated spines were individually rotated through an arc of 0-60° and measured with a torsion meter by three investigators. One hundred forty-four errors were made in the 351 measurements, of which >92% were within ±5°. We concluded that use of the torsion meter is an effective way to measure vertebral rotation.
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Barsanti et al. (1990) studied this question.
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