Yasushi Oshima
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View article: Impact of dural opening on noninfectious postoperative fever in spinal surgery: a propensity-matched retrospective study
Impact of dural opening on noninfectious postoperative fever in spinal surgery: a propensity-matched retrospective study Open
Purpose Dural opening in cranial surgery causes noninfectious prolonged fever, such as aseptic meningitis, often necessitating additional diagnostic testing and medical costs. However, its impact in spinal surgery remains underexplored. Me…
View article: Impact of posterior cervical spine surgery on neck pain-related driving disability and risk factor analysis of postoperative worsening or poor improvement: a retrospective multicenter cohort study
Impact of posterior cervical spine surgery on neck pain-related driving disability and risk factor analysis of postoperative worsening or poor improvement: a retrospective multicenter cohort study Open
Posterior cervical spine surgery can improve driving disability associated with neck pain. Nevertheless, the potential risk of postoperative deterioration or poor improvement should be considered, particularly among patients who are older,…
View article: Risk Factors for Incidental Durotomy in Initial Posterior Decompression Surgery for Lumbar Central Canal Stenosis with Bilateral Neurogenic Claudication
Risk Factors for Incidental Durotomy in Initial Posterior Decompression Surgery for Lumbar Central Canal Stenosis with Bilateral Neurogenic Claudication Open
Risk factors for ID are dependent on surgical approach. For open procedures, pharmacological factors are paramount, while for microendoscopic procedures, female sex and surgeon experience are critical. Preventive strategies should be tailo…
View article: Characteristics and Clinical Outcomes of Transition from Conservative Therapy to Surgical Intervention in Older Patients with Cervical Spinal Cord Injury without Major Bone Injury: A Nationwide Retrospective Study
Characteristics and Clinical Outcomes of Transition from Conservative Therapy to Surgical Intervention in Older Patients with Cervical Spinal Cord Injury without Major Bone Injury: A Nationwide Retrospective Study Open
A significant proportion of older patients with CSCI without major bone injury who were initially managed conservatively eventually required surgery due to insufficient neurological improvement. The outcomes of patients who transitioned to…
View article: Surgical findings and precautions for removing cement that leaked into the spinal canal due to balloon kyphoplasty: illustrative cases
Surgical findings and precautions for removing cement that leaked into the spinal canal due to balloon kyphoplasty: illustrative cases Open
BACKGROUND Balloon kyphoplasty (BKP) is a widely utilized procedure for osteoporotic and metastatic vertebral fractures. However, cement leakage into the spinal canal is a serious complication that can result in neurological deficits, requ…
View article: Risk Factors and Prevalence of Sleep Disturbance in Degenerative Cervical Myelopathy
Risk Factors and Prevalence of Sleep Disturbance in Degenerative Cervical Myelopathy Open
The study highlights that ossification of posterior longitudinal ligament and high baseline neck pain are significant risk factors for persistent sleep disturbances postsurgery in DCM patients. Early identification and targeted interventio…
View article: Insulin Resistance-related Gray Matter Volume Reduction is Associated with the Default Mode Network
Insulin Resistance-related Gray Matter Volume Reduction is Associated with the Default Mode Network Open
In this study, we observed that insulin resistance is linked to a reduction in grey matter volume in the default-mode and limbic networks of the cerebral cortex in older adults. Additionally, we found that the paraventricular nucleus of th…
View article: Noninvasive Skin Autofluorescence of Advanced Glycation End Products in Patients with Degenerative Cervical Myelopathy
Noninvasive Skin Autofluorescence of Advanced Glycation End Products in Patients with Degenerative Cervical Myelopathy Open
Noninvasive skin autofluorescence of AGEs may be a useful biomarker for pain symptoms in the lower limbs in patients with DCM.
View article: Influence of Diabetes Mellitus on Neurological Recovery in Older Patients With Cervical Spinal Cord Injury Without Bone Injury: A Retrospective Multicenter Study
Influence of Diabetes Mellitus on Neurological Recovery in Older Patients With Cervical Spinal Cord Injury Without Bone Injury: A Retrospective Multicenter Study Open
Study Design Retrospective study. Objectives To investigate the impact of diabetes mellitus on neurological recovery and determine the relationship between moderate-severe diabetes and neurological recovery in patients with cervical spinal…
View article: The prevalence of ENPP1 deficiency and the preclinical efficacy of ENPP1 biologic therapy in OPLL.
The prevalence of ENPP1 deficiency and the preclinical efficacy of ENPP1 biologic therapy in OPLL. Open
Ossification of the Posterior Longitudinal Ligament (OPLL) and Diffuse Idiopathic Skeletal Hyperostosis (DISH) are disorders in which patients suffer from pain and stiffness due to progressive spinal fractures and enthesospathy. Myelopathy…
View article: Patient-Reported Outcomes in Super-Elderly Patients over 90 Years of Age with Degenerative Spinal Diseases: A Multicenter Study
Patient-Reported Outcomes in Super-Elderly Patients over 90 Years of Age with Degenerative Spinal Diseases: A Multicenter Study Open
There were significant improvements in PROs at 1 year postoperatively in the SE group than in the E group, and there were no significant differences in perioperative complication rates or mortality.
View article: Post-operative shift in pain profile following fusion surgery for adult spinal deformity: a cluster analysis
Post-operative shift in pain profile following fusion surgery for adult spinal deformity: a cluster analysis Open
Purpose Adult spinal deformity (ASD) is associated with a combination of back and leg pain of various intensities. The objective of the present study was to investigate the diverse reaction of pain profiles following ASD surgery as well as…
View article: Is Intraoperative Blood Loss Volume in Elderly Cervical Spine Injury Surgery Greater in Patients with Ankylosis? A Multicenter Survey
Is Intraoperative Blood Loss Volume in Elderly Cervical Spine Injury Surgery Greater in Patients with Ankylosis? A Multicenter Survey Open
This study revealed that ankylosis was significantly associated with increased blood loss volume when unadjusted by surgical time. Elderly patients with cervical spine injury accompanied by ankylosis appear predisposed to higher bleeding a…
View article: Comparative Analysis of Characteristics of Lower- and Mid-Cervical Spine Injuries in the Elderly
Comparative Analysis of Characteristics of Lower- and Mid-Cervical Spine Injuries in the Elderly Open
Elderly patients with lower-cervical fractures/dislocations were injured by high-energy trauma significantly more often than patients with mid-cervical injuries. Furthermore, half of the patients with lower-cervical injuries had mid-cervic…
View article: Low Nutrition before Injury Is a Risk Factor for Dysphagia in Older Patients with Cervical Spinal Cord Injury: Based on a Multicenter Data of 707 Patients
Low Nutrition before Injury Is a Risk Factor for Dysphagia in Older Patients with Cervical Spinal Cord Injury: Based on a Multicenter Data of 707 Patients Open
Low GNRI before injury was one of the independent risk factors for dysphagia after geriatric cervical SCI. GNRI represents the comprehensive nutritional status of the elderly and reflects feeding function and its recovery capacity.
View article: Postoperative Complications of Surgery for Cervical Spondylotic Myelopathy with and Without Athetoid Cerebral Palsy
Postoperative Complications of Surgery for Cervical Spondylotic Myelopathy with and Without Athetoid Cerebral Palsy Open
Study Design Retrospective cohort study. Objectives With the aging of the Japanese population, patients with athetoid cerebral palsy (ACP) are getting older, and the rate of surgery for CSM is increasing in ACP patients. However, postopera…
View article: Patient-Reported Outcomes and Patient Satisfaction Following Surgery for Thoracic Myelopathy
Patient-Reported Outcomes and Patient Satisfaction Following Surgery for Thoracic Myelopathy Open
The 64.4% satisfaction rate observed in patients undergoing surgery for thoracic myelopathy was lower than that reported in previous studies on cervical or lumbar spine surgery. The dissatisfied group exhibited significantly poorer quality…
View article: Diurnal variation of brain activity in the human suprachiasmatic nucleus
Diurnal variation of brain activity in the human suprachiasmatic nucleus Open
The suprachiasmatic nucleus (SCN) is the central clock for circadian rhythms. Animal studies have revealed daily rhythms in the neuronal activity in the SCN. However, the circadian activity of the human SCN has remained elusive. In this st…
View article: Early Versus Delayed Surgery for Elderly Traumatic Cervical Spinal Injury: A Nationwide Multicenter Study in Japan
Early Versus Delayed Surgery for Elderly Traumatic Cervical Spinal Injury: A Nationwide Multicenter Study in Japan Open
Study Design Retrospective multicenter study. Objectives The effectiveness of early surgery for cervical spinal injury (CSI) has been demonstrated. However, whether early surgery improves outcomes in the elderly remains unclear. This study…
View article: Patients with a large ossification of the posterior longitudinal ligament have a higher incidence of arteriosclerosis in the carotid artery
Patients with a large ossification of the posterior longitudinal ligament have a higher incidence of arteriosclerosis in the carotid artery Open
Purpose This study aimed to investigate the impact of the severity of cervical ossification of the posterior longitudinal ligament (OPLL) on the incidence of arteriosclerosis in the carotid artery. Methods Patients with OPLL-induced cervic…
View article: Impact of the COVID-19 pandemic on surgical volume and outcomes in spine surgery: a multicentre retrospective study in Tokyo
Impact of the COVID-19 pandemic on surgical volume and outcomes in spine surgery: a multicentre retrospective study in Tokyo Open
Objectives To investigate the effect of the COVID-19 pandemic on surgical volume and outcomes in spine surgery. Design A retrospective cohort study using prospectively collected data. Setting and participants A total of 9935 patients who u…
View article: Reduced volume and altered composition of paraspinal muscles in Marfan syndrome: A retrospective cohort study
Reduced volume and altered composition of paraspinal muscles in Marfan syndrome: A retrospective cohort study Open
Retrospective cohort study. Spinal deformities in patients with Marfan syndrome (MFS) are distinct from those in patients with idiopathic scoliosis (IS). It is more prone to progression and more likely to present with sagittal malalignment…