- Entrapment of the Fifth Lumbar Spinal Nerve by Advanced Osteophytic Changes of the Lumbosacral Zygapophyseal Joint: A Case Report
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Ohnishi YI, Yuguchi T, Iwatsuki K, Yoshimine
- KMID: 2408137
- Asian Spine J.
- 2012 Dec;6(4):291-293.
A 54-year-old female patient had a 6-year history of backache and left sciatica. Five years earlier, she had undergone surgery in another hospital for left L4-5 disc herniation. Computed tomography... -
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- Intradural Extramedullary Spinal Ependymoma: A Case Report of Malignant Transformation Occurring
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Moriwaki T, Iwatsuki K, Ohnishi YI, Umegaki M, Ishihara M, Yoshimine
- KMID: 2048105
- Asian Spine J.
- 2013 Jun;7(2):139-142.
- doi: 10.4184/asj.2013.7.2.139
Intradural extramedullary spinal ependymomas are extremely rare. Herein, we describe a lesion-type spinal ependymoma that followed a malignant course, and discuss its clinical presentation, etiopathogenesis, and treatment. We present a... -
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- Radiological Evaluation of the Initial Fixation between Cortical Bone Trajectory and Conventional Pedicle Screw Technique for Lumbar Degenerative Spondylolisthesis
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Ninomiya K, Iwatsuki K, Ohnishi YI, Yoshimine
- KMID: 2169224
- Asian Spine J.
- 2016 Apr;10(2):251-257.
- doi: 10.4184/asj.2016.10.2.251
STUDY DESIGN: Retrospective study. PURPOSE: To compare initial fixation using the cortical bone trajectory (CBT) technique versus conventional pedicle screws (PS) in radiographs of postsurgical lumbar degenerative spondylolisthesis. OVERVIEW OF LITERATURE: Few... -
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- Clear Zone Formation around Screws in the Early Postoperative Stages after Posterior Lumbar Fusion Using the Cortical Bone Trajectory Technique
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Ninomiya K, Iwatsuki K, Ohnishi YI, Ohkawa T, Yoshimine
- KMID: 2131110
- Asian Spine J.
- 2015 Dec;9(6):884-888.
- doi: 10.4184/asj.2015.9.6.884
STUDY DESIGN: Retrospective study. PURPOSE: To evaluate the initial fixation using the cortical bone trajectory (CBT) technique for posterior lumbar fusion through assessment of the clear zones around the screws and... -
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- Differences between Cervical Schwannomas of the Anterior and Posterior Nerve Roots in Relation to the Incidence of Postoperative Radicular Dysfunction
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Ohnishi YI, Iwatsuki K, Ohkawa T, Ninomiya K, Moriwaki T, Yoshimine
- KMID: 2270170
- Asian Spine J.
- 2015 Apr;9(2):263-270.
- doi: 10.4184/asj.2015.9.2.263
STUDY DESIGN: A retrospective study. PURPOSE: To assess the case files of patients who underwent surgery for cervical dumbbell schwannoma for determining the differences between schwannomas of the anterior and posterior... -
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- Significance of the Pars Interarticularis in the Cortical Bone Trajectory Screw Technique: An In Vivo Insertional Torque Study
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Ninomiya K, Iwatsuki K, Ohnishi YI, Ohkawa T, Yoshimine
- KMID: 2354814
- Asian Spine J.
- 2016 Oct;10(5):901-906.
- doi: 10.4184/asj.2016.10.5.901
STUDY DESIGN: Retrospective study. PURPOSE: Cortical bone trajectory (CBT), a more medial-to-lateral and shorter path than the traditional one for spinal fusion, is thought to be effective for severely degenerated vertebrae... -
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