Spine
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Analysis of patient and surgeon preference between selective and nonselective thoracic spinal fusions. ⋯ The DFQ quantifies the perceived trade off between residual deformity and spared motion segments. Two-year postoperative patient satisfaction, as measured by the Scoliosis Research Society-24 questionnaire, and surgeon preference, in terms of coronal radiographic outcome, correlated significantly with the DFQ.
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Comparative Study
Insertion of the artificial disc replacement: a cadaver study comparing the conventional surgical technique and the use of a navigation system.
Comparison of total disc replacement (TDR) with and without computer-assisted surgical navigation. ⋯ Surgical computer-assisted navigation may be a useful tool in the hands of a spine surgeon to achieve more accurate placement of the disc prosthesis. Because of the parallax effect, computer-assisted navigation offers more placement accuracy than stan- dard fluoroscopy. Because the accurate placement of total disc prosthesis has been correlated with better clinical outcome, further study regarding the navigation of the TDR is essential.
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Retrospective analysis. ⋯ Considering the acceptable local recurrence rate, conservative surgery aided by effective control of intraoperative hemorrhage should be considered as an alternative procedure for patients with giant cell tumors of the sacrum. The advantages include lower morbidity, reduced neurologic deficits, speed and ease of the surgical procedure, reduced blood loss, preservation of spinal and pelvic continuity, and a low recurrence rate.
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A case report. ⋯ Myositis ossificans usually occurs in extremities and is very uncommon in the psoas muscle. We report psoas myositis ossificans that developed from hemorrhage and edema associated with a lumbar fracture and required only 2 months to regress completely. When one finds a soft tissue mass with surrounding edema in the psoas muscle combined with a vertebral compression fracture, myositis ossificans should be included in the differential diagnosis.
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Repeated measures of cervical motion in asymptomatic subjects. ⋯ Inter and intratester reliability was supported for both the VR-based and the conventional methods. Results suggest better repeatability for the VR method, with rotation being more precise than flexion/extension. A single VR session was found to be effective in increasing cervical motion, possibly due to its motivating effect.