Spine
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Multicenter Study
Strategies for prevention and operative treatment of aortic lesions related to spinal interventions.
A retrospective analysis of a case series was performed. ⋯ In patients with complex spinal trauma, spondylodiscitis or difficult vertebral reinterventions, and an increased risk of major vessel injury, a preoperative interdisciplinary evaluation is recommended, even under emergency conditions. Endovascular stent graft technique is an additional option for prevention and treatment of suspected or acute aortic injuries of thoracic and infrarenal aortic lesions, whereas injuries to the visceral aortic segment still require advanced vascular reconstructions.
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Comparative Study
Comparative charge analysis of one- and two-level lumbar total disc arthroplasty versus circumferential lumbar fusion.
This is a retrospective, independent study comparing 2 groups of patients treated surgically for discogenic low back pain associated with degenerative disc disease (DDD) in the lumbosacral spine. ⋯ Patients undergoing 1- and 2-level ProDisc total disc replacement spent significantly less time in the OR and had less EBL than controls. Charges were significantly lower for TDR compared with circumferential fusions in the 1-level patient group, while charges were similar in the 2-level group.
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Comparative Study
Clip compression model is useful for thoracic spinal cord injuries: histologic and functional correlates.
Experimental investigation of an acute thoracic spinal cord injury model in rats involving acute clip compression that simulates human injury. ⋯ The rat thoracic cord clip compression model is a reproducible, clinically relevant spinal cord injury model. This is the first time that the force of clip compression injury in the rat thoracic cord has been correlated with both functional and histologic outcome measures.
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Retrospective clinical study. ⋯ The simultaneous surgical treatment for congenital deformity and intraspinal abnormality does not involve significant complications and seems to be an alternative and safe treatment option.
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Internal deformations and strains were measured within intact human motion segments. ⋯ This technique allows quantification of displacement and strain within the intact disc. The radial displacements of inner AF suggest NP translation under compression. Peak tensile radial strains occurred as vertical bands throughout the anulus, which may contribute to radial tears and herniations. The tensile axial and shear strains at the interface between the AF and endplate could be related to the occurrence of rim lesions. Peak strains at the endplate are likely due to the AF curvature and the oblique fibers angle at fiber insertion sites. In the future, this technique may be used to measure disc strain under a variety of loading conditions, such as bending or torsion, and could also be used to study the mechanical effects of disc degeneration and potential clinical interventions.