A5013271731- Spine and Intervertebral Disc Pathology
- Cervical and Thoracic Myelopathy
- Spinal Fractures and Fixation Techniques
- Musculoskeletal pain and rehabilitation
- Medical Imaging and Analysis
- Spinal Hematomas and Complications
- Scoliosis diagnosis and treatment
- Hereditary Neurological Disorders
- Myofascial pain diagnosis and treatment
- Urinary Bladder and Prostate Research
- Pelvic floor disorders treatments
- Nerve Injury and Rehabilitation
- Conducting polymers and applications
- Advanced Chemical Sensor Technologies
- Metal-Organic Frameworks: Synthesis and Applications
- Pain Mechanisms and Treatments
Sendai Nishitaga National Hospital
2011-2023
Chuo University
2023
National Hospital Organization
2012
Tohoku University
2006
Tohoku Rosai Hospital
2006
Data obtained in patients with thoracic myelopathy caused by ossification of the ligamentum flavum (OLF) were retrospectively reviewed to clarify clinical features and surgical outcomes Japanese population.Seventy-two who underwent surgery for OLF-induced Miyagi Prefecture, Japan, between 1988 2002 observed at least 2 years. Clinical data collected from medical operative records. The evaluated pre- postoperatively using modified Orthopaedic Association (JOA) scale (maximum score 11)....
Thoracic myelopathy is uncommon compared with cervical myelopathy. In this study, data obtained in patients thoracic caused by degenerative processes of the spine were retrospectively analyzed to clarify surgical outcomes and examine various factors affecting postoperative improvement.Between 1988 2002, 132 underwent surgery a minimum 2-year observation period. Clinical collected from medical operative records, sagittal alignment was measured on radiographs. The evaluated pre-...
Optically switchable proton-conductive materials will enable the development of artificial ionic circuits. However, most platforms rely on conformational changes in crystals to alter connectivity guest molecules. Guest dependency, low transmittance, and poor processability polycrystalline hinder overall light responsiveness contrast between off states. Here, we optically control anhydrous proton conductivity a transparent coordination polymer (CP) glass. Photoexcitation...
In Brief Study Design. Cross-sectional registry and imaging cohort study. Objective. To examine whether the dural sac cross-sectional area (DCSA) in axial loaded magnetic resonance (MRI) correlates with severity of clinical symptoms patients lumbar spinal canal stenosis (LSCS). Summary Background Data. Many studies have analyzed relationship between DCSA on conventional MRI LSCS, but link is still uncertain. Recently, MRI, which can stimulate upright position, has been developed. Axial...
Spinal disorders affect mainly older people and cause pain, paralysis and/or deformities of the trunk extremities, which could eventually disturb locomotive functions. For ensuring safe high-quality treatment spinal disorders, in 1987, Tohoku University Spine Society (TUSS) was established by orthopedic departments School Medicine its affiliated hospitals around Miyagi Prefecture. All spine surgeries have been enrolled TUSS Registry since 1988. Using data from this registration system...
We compared the sizes of dural sac among conventional magnetic resonance imaging (MRI), axial loaded MRI, and upright myelography in patients with lumbar spinal canal stenosis (LSCS).To determine whether MRI can demonstrate similar positional changes size as were detected by LSCS.In LSCS, constriction is worsened symptoms are aggravated during standing or walking. To disclose such changes, has been widely used. Recently, which simulate a position, developed. However, there no study to...
Thoracic myelopathy is defined as spinal cord compression in the thoracic region, leading to sensory and motor dysfunctions trunk lower extremities, can be caused by various degenerative processes of spine. rare, there are many unsolved problems including its epidemiological clinical features. We have established a registration system surgeries, which covered almost all surgeries Miyagi Prefecture, enrolled data 265 patients with from 1988 2002. The annual rate surgery gradually increased...
The increased kyphosis after thoracic laminectomy in adult patients was retrospectively evaluated and various factors affecting this spinal deformity were analyzed.The authors conducted a retrospective study of 58 cases which performed more than half the facet joints left intact. group included 44 men (mean age 59 years) 14 women 61 with myelopathy due to ossifications ligamentum flavum and/or posterior longitudinal ligament or bone spurs. Patients followed up for minimum 2 years. Their...
Axial loaded MR imaging, which can simulate the spinal canal of patients in a standing position, demonstrates significant reduction DCSA compared with conventional imaging and provides valuable findings assessment lumbar canal. The purpose this study was to compare on axial between DS SpS.Eighty-eight consecutive were divided into SpS groups. changes induced by loading prevalence change (>15 mm(2)) 2 groups.Axial demonstrated significantly smaller group (35 ± 22 than (50 31 mm(2)), though...
Axial-loaded MR imaging, which simulates the spinal canal in a standing position, demonstrates reductions of dural sac cross-sectional area patients with lumbar stenosis. However, there has been no useful conventional imaging finding for predicting reduction on axial-loaded imaging. Previous studies have shown that increased facet fluid is associated instability detected during positional changes. The purpose this study was to analyze correlations between and dynamic changes imaging.In 93...
To investigate clinical-radiological features of cervical myelopathy due to degenerative spondylolisthesis (DSL).A total 448 patients were operated for at Nishitaga National Hospital between 2000 and 2003. Of these patients, DSL the symptomatic disc level was observed in 22 (4.9%) patients. Clinical investigated by medical records, radiological radiographs.Disc levels C3/4 6 cases C4/5 16 cases. Distance anterior slippage 2 5 mm (average 2.9 mm) flexion position. Space available spinal cord...
Study design. Case-series study. Objective. To describe the clinical presentation, characteristic findings of imaging studies, and treatment lumbar radiculopathy caused by foraminal stenosis in rheumatoid arthritis. Background. Lumbar lesions arthritis are relatively rare, with a limited number systemic reports. Methods. Six patients were treated. The all women mean age 69 years duration 15 years. medical records studies reviewed. Results. affected nerve roots L4 four L3 two patients....
Laminoplasty is a common surgery for cervical myelopathy. Previous studies have analyzed the reoperation rates in posterior decompression surgeries of spine. However, few solely focused on midline-splitting laminoplasty (MSL) using large number patients. This aims to analyze after MSL survival function method.Between 1988 and 2013, 4,208 MSLs were performed as primary operation myelopathy enrolled our spinal registration system. The Kaplan-Meier method was used reoperation.Of patients with...
Abstract Objectives Cervical myelopathy (CM) and lumbar canal stenosis (LCS) are common degenerative spinal diseases among the elderly, major associated complaints include lower urinary tract symptoms (LUTS). The aim of this study was to investigate subjective objective urological parameters patients undergoing decompression surgery for CM LCS. Methods We retrospectively reviewed who underwent evaluation by International Prostate Symptom Score (IPSS) uroflowmetry before Patients with...
Lumbar spondylolysis, a well known cause of low back pain, usually affects the pars interarticularis lower lumbar vertebra and rarely involves articular processes. We report rare case bilateral spondylolysis inferior processes L4 that caused spinal canal stenosis with significant segmental instability at L4/5 scoliosis. A 31-year-old male who had suffered from pain since he was teenager presented numbness right leg Plain X-rays revealed L4, anterolisthesis vertebral body, lateral wedging...
Congenital insensitivity to pain with anhidrosis (CIPA) is a rare autosomalrecessive hereditary neuropathy causing congenital loss of sensation, thermoception, and perspiration.CIPA sometimes causes destructive spondyloarthropathy, the so-called Charcot spine, because stimuli.Herein, we report case CIPA severe spinal destruction treated by multiple reconstructive surgeries >15 years follow-up.A 15-year-old male patient who had been diagnosed at age 17 months presented his previous spine...
Background Japan has had a rapidly aging population during the past 30 years. This study aimed to investigate longitudinal changes in surgical rate for spinal disorders Miyagi Prefecture (2.35 million inhabitants) with similar composition Japan. Methods Data of surgeries were collected using spine registry by Tohoku University Spine Society. on annual number between 1988 and 2014 all populations, those aged ≧65 years old, ≧75 each pathology collected. The per 100,000 inhabitants was...
Imaging analysis of foraminal stenosis in the fifth lumbar (L5) nerve root remains to be a challenge because anatomical complexity lumbosacral transition. T2-weighted three-dimensional (3D) magnetic resonance images (MRI) have been dominantly used for diagnosis stenosis, while reliability T1-weighted (WI) has also proven. In this study, we aim compare and reproducibility T1- 3D MRI diagnosing (LFS) L5 root.In 39 patients with unilateral radiculopathy (20 had L4-L5 intracanal stenosis; 19...