Journal of spinal disorders & techniques
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J Spinal Disord Tech · May 2012
Comparative StudyThree-dimensional kinematic lumbar spine motion analyses of trunk motion during axial rotation activities.
An experimental design was conducted to investigate kinematic changes in 3-dimensional trunk motions between subjects with and without chronic low back pain (LBP) while demonstrating axial rotation. ⋯ Decreased spinal range of motion in older subjects might result in a stiffened spine in addition to possible poor proprioception from back injuries to passive structures in subjects with chronic LBP.
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Retrospective. ⋯ Our findings suggest that the Tai Chi pedicle screw placement technique, which does not require intraoperative radiographic imaging, is an accurate, reliable, safe, and time-saving method of placing pedicle screws in severe scoliotic spines.
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J Spinal Disord Tech · May 2012
Case ReportsImpact of prone surgical positioning on the scoliotic spine.
To study the impact of patient-specific prone positioning on the sagittal and coronal curves of scoliotic spines, including the impact of various patient and surgical frame factors. ⋯ Prone positioning results in a reduction of all spinal segmental curves which is dependent on a number of patient and surgical frame factors.
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J Spinal Disord Tech · Apr 2012
The pedicle-facet angle and tropism in the sagittal plane in degenerative spondylolisthesis: a computed tomography study using multiplanar reformations techniques.
A case-control study. ⋯ The P-F angle was the highest at L4-L5 both in the DS and the control group, which might explain the fact that L4 vertebra is more likely to slip forward. The P-F angle of the slipped vertebra alone was more horizontally inclined and facet tropism in the sagittal plane may relate well to DS.
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J Spinal Disord Tech · Apr 2012
The influence of thoracic inlet alignment on the craniocervical sagittal balance in asymptomatic adults.
A prospective radiographic study. ⋯ The thoracic inlet alignment had significant correlations with craniocervical sagittal balance. To preserve physiological NT around 44 degrees, large TIA increased T1 slope and CL and vice versa. TIA and T1 slope could be used as parameters to predict physiological alignment of the cervical spine. The results of this study may serve as baseline data for the evaluation of sagittal balance or planning of a fusion angle in the cervical spine.