Journal of spinal disorders & techniques
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J Spinal Disord Tech · Apr 2015
Effect of lamina open angles in expansion open-door laminoplasty on the clinical results in treating cervical spondylotic myelopathy.
A retrospective study. ⋯ In different angles of lamina open-door, the improvement rate of neurological function after surgery had no statistically significant difference between 2 groups. When the open-door angle is maintained between 15 and 30 degrees, it can reduce the incidence of C5 palsy in the hinge side and AS, but we should prevent reclosure of the lamina open-door.
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J Spinal Disord Tech · Apr 2015
Cost per quality-adjusted life year gained of revision fusion for lumbar pseudoarthrosis: defining the value of surgery.
Single cohort study of patients undergoing revision fusion for lumbar pseudoarthrosis. ⋯ Revision arthrodesis was associated with improved 2-year quality of life in patients with pseudoarthrosis-related back pain. Nevertheless, in our experience revision surgery was shown to be marginally cost-effective at $118,945 per QALY gained.
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J Spinal Disord Tech · Apr 2015
Cement augmented anterior odontoid screw fixation is biomechanically advantageous in osteoporotic patients with Anderson Type II fractures.
A biomechanical human cadaveric study. ⋯ Cement augmentation for fixation of osteoporotic type II odontoid fractures showed biomechanical advantages. It was also shown that cement augmentation of the newly developed screw is technically easy and safe under in vitro conditions. The technique might be useful with regard to the surgical treatment of elderly patients with osteoporotic odontoid fractures.
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J Spinal Disord Tech · Mar 2015
Prevention of proximal junctional kyphosis after posterior surgery of Scheuermann kyphosis: an operative technique.
A prospective randomized study. ⋯ This study introduces a new technique that may have an effect in preventing PJK. Our results seem to be satisfactory, but additional studies with more patients and longer follow-up times are needed to further delineate the feasibility of this technique.
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J Spinal Disord Tech · Mar 2015
Time to development, clinical and radiographic characteristics, and management of proximal junctional kyphosis following adult thoracolumbar instrumented fusion for spinal deformity.
A retrospective review. ⋯ The patients in this series who developed PJK had substantial preoperative positive sagittal malalignment that remained inadequately corrected following surgery, likely resulting from a combination of inadequate surgical correction and a significant compensatory increase in thoracic kyphosis. In the absence of direct relationship between a greater PJK angle and worse clinical outcome, clinical symptoms and neurological status rather than absolute reliance on radiographic parameters should drive the decision to pursue revision surgery.