Spine
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Case report. ⋯ We reported a patient with OPLL who had undergone resurgery twice because of myelopathy due to the progression of ossification. It was important to establish a sufficiently longitudinal and transverse decompression, taking the risk of the unexpected progression of ossification into consideration.
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Biomechanical analysis of the scoliotic thoracolumbar spine and ribcage using a three-dimensional finite element model. ⋯ Homogeneous reduction in either the disc collagen fiber or ligament stiffness had minimal influence on scoliotic curve reducibility. However, discectomy simulation shows that the intervertebral discs are of critical importance in determining spinal flexibility.
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Case Reports
Bacteremia coexisting with tophaceous gout of the spine mimicking spondylodiscitis: a case report.
A case report and review of the literature. ⋯ This is, to our knowledge, the first case of bacteremia coexisting with multiple areas of tophaceous gout of the spine. Although uncommon, gouty spine should be added into the differential diagnosis of patients with back pain and bacteremia.
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A systematic review of randomized controlled trials (RCTs). ⋯ There is insufficient evidence to support the use of injection therapy in subacute and chronic low-back pain. However, it cannot be ruled out that specific subgroups of patients may respond to a specific type of injection therapy.
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An in vitro three-dimensional (3D) flexibility test of human C3-C7 cervical spine specimens. ⋯ Anterior cervical fusion with a wedged graft and a rigid constrained (locked) plate can effectively stabilize the nonosteoporotic cervical spine after complete posterior element injury when excessive ROM is prevented (for example, by the use of postoperative external immobilization). Even when the construct is subjected to higher moments, adequate stability can be achieved when physiologic preload is present. Osteoporosis and lack of sufficient preload due to poor neuromuscular control may affect long-term screw stability, and additional external immobilization may be needed until fusion matures.