Spine
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A case series of eight consecutive patients with severe (Meyerding Grade ≥ 3) adolescent isthmic spondylolisthesis (SAIS) who underwent reduction and stabilization by using a new surgical technique. ⋯ This safe 3-stage procedure assists sudden reduction and circumferential fusion of SAIS without any neurologic deficit and excellent clinicoradiologic outcome restoring normal lumbosacral biomechanics.
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Basic animal research. ⋯ Limaprost alfadex prevented decline of forced locomotion capability in rats with chronic compression of the cervical cord.
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Controlled laboratory study. ⋯ DDD alters the ROMs of the facet joints. The rotations can increase significantly not only at the DDD levels but also at their adjacent levels when compared to those of the healthy participants. The increase in rotations did not occur around the primary rotation axis of the torso motion but around the coupled axes. This hypermobility in coupled rotations might imply a biomechanical mechanism related to DDD.
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Retrospective clinical study for patients receiving multilevel en-bloc spondylectomy resection for sarcomas and solitary metastases of the thoracolumbar spine. ⋯ Multilevel en-bloc spondylectomy offers a radical resection option for extracompartmental tumor involvement. It provides oncologically adequate resection margins with low local recurrence. However, the procedures are complex; the patient's stress is high and metastatic disease developed in one-third of patients. A judicious patient selection and a realistic feasibility evaluation must precede the decision for surgery. Reconstruction using a carbon composite cage system showed low complication rates and offers advantages for oncosurgical procedures.
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Review Case Reports
Symptomatic vertebral artery compression by the rod of a C1-C2 posterior fusion construct: case report and review of the literature.
Case report. ⋯ In atlantoaxial fusion, the incidence of vertebral artery compression by the rod component of fusion construct may be underreported because it is difficult to detect with noncontrast computed tomography without computed tomographic angiography, which is not routinely obtained unless there is a high suspicion for vascular injury. We recommend inserting the rods with the cut (sharp) end pointing inferiorly, to avoid lacerating the vertebral artery. A vertebral artery compression from the rod in the absence of screw violation of the foramen transversarium should be considered in a patient with altered mental status after atlantoaxial fusion.