Spine
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Multicenter Study
Validation of a minimum outcome core set in the evaluation of patients with back pain.
Prospective study of patients with subacute osteoporotic fracture (SOF) or chronic low back pain (CLBP). ⋯ These findings support the potential usefulness of the Core Set when respondent burden is a major concern. However, subscale scores need to be further tested in other populations before they can be widely recommended.
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Wedging of apical spinal segments was measured during creation and correction of an experimental scoliosis in a goat model. ⋯ This study demonstrates the ability to create wedge deformities at the apex of an experimental scoliosis in a large animal model and to control the progression of these deformities using anterior thoracic staples.
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Review Case Reports
Intradural cement leakage: a devastatingly rare complication of vertebroplasty.
The aim of this case report is to examine the devastating complication that may follow vertebroplasty. ⋯ Percutaneous vertebroplasty with polymethyl methacrylate is relatively safe, but it still should be proceeded under careful safeguard. The needle tip should not cross the medial border of the pedicle on the anteroposterior view before it has crossed the posterior cortex of the vertebral body on the lateral view. Good quality of image monitoring and clear visualization of cement should be helpful to prevent complications.
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Randomized Controlled Trial
Effect of prone positioning systems on hemodynamic and cardiac function during lumbar spine surgery: an echocardiographic study.
Prospective randomized study of patients undergoing spine surgery. ⋯ Adequate fluid replacement reduced hypotension and hemodynamic instability after prone positioning. The Jackson spine table and longitudinal bolsters had minimal effects on cardiac function, and should be considered in patients with limited cardiac reserve.
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The position of a needle tip displayed on a navigation system after transpedicular introduction into a vertebral body is compared with the real position of the needle tip when using a direct navigation coupling between a three-dimensional rotational X-ray (3DRX) system and a navigation system. ⋯ Accuracy of 3DRX-guided navigation is 2.5 +/- 1.5 mm in a clinically relevant setting, which is less than the accuracy determined in phantom experiments.