A5075092683- Spine and Intervertebral Disc Pathology
- Cervical and Thoracic Myelopathy
- Spinal Fractures and Fixation Techniques
- Sarcoma Diagnosis and Treatment
- Total Knee Arthroplasty Outcomes
- Spinal Hematomas and Complications
- Knee injuries and reconstruction techniques
- Orthopedic Infections and Treatments
- Infectious Diseases and Tuberculosis
- Management of metastatic bone disease
- Bone Tumor Diagnosis and Treatments
- Orthopaedic implants and arthroplasty
- Musculoskeletal pain and rehabilitation
- Scoliosis diagnosis and treatment
- Bone and Joint Diseases
- Spinal Cord Injury Research
- Surgical site infection prevention
- Shoulder Injury and Treatment
- Spinal Dysraphism and Malformations
- Reconstructive Surgery and Microvascular Techniques
- Orthopedic Surgery and Rehabilitation
- Medical Imaging and Analysis
- Neurofibromatosis and Schwannoma Cases
- Pelvic and Acetabular Injuries
- Vascular Procedures and Complications
Saitama Medical University
2017-2025
Social Insurance Saitama Chuo Hospital
2017-2025
Unitika (Japan)
2023
Weatherford College
2023
Jichi Medical University Saitama Medical Center
2009-2021
Jichi Medical University
2005-2021
Imperial Household Agency
2007
University of Tokyo Hospital
1996-1998
The University of Tokyo
1996-1998
Miyazaki Welfare Medical College
1996
Study Design. A 5-year prospective study. Objectives. To investigate trunk muscle weakness as a risk factor for low back pain in asymptomatic volunteers. Summary of Background Data. Muscle strength has not been sufficiently studied pain. Methods. The study participants included 30 male and 37 female volunteers (mean age, 17 ± 2 years), who neither reported nor had ever treated Trunk was measured isokinetically (60 degrees/sec), using the extension flexion torso rotation units. peak torques...
To examine the incidence of vertebral osteomyelitis (VO) and clinical features VO focusing on risk factors for death using a Japanese nationwide administrative database.Retrospective observational study.Hospitals adopting Diagnosis Procedure Combination system during 2007-2010.We identified 7118 patients who were diagnosed with (International Classification Diseases, 10th Revision codes: A18.0, M46.4, M46.5, M46.8, M46.9, M48.9 M49.3, checked detailed diagnoses in each case all other codes...
<h3>Importance</h3> The optimal management for acute traumatic cervical spinal cord injury (SCI) is unknown. <h3>Objective</h3> To determine whether early surgical decompression results in better motor recovery than delayed treatment patients with incomplete SCI associated preexisting canal stenosis but without bone injury. <h3>Design, Setting, and Participants</h3> This multicenter randomized clinical trial was conducted 43 tertiary referral centers Japan from December 2011 through November...
Abstract Purpose Spinal schwannomas are benign tumours that can compress the spinal cord or nerve roots, causing neurological symptoms. Despite successful surgical resection, some patients experience suboptimal functional recovery. Several risk factors for poor prognosis have been identified, but limited research has explored influence of tumour distribution and characteristics. In this study, we aimed to identify prognostic variables associated with residual deficit in undergoing resection...
Study Design. Case report of a patient who underwent new surgical procedure for paraplegia after vertebral collapse due to osteoporosis. Objectives. To propose approach posterior spinal fusion surgery osteoporotic patients. Summary Background Data. Surgical treatment was performed on paraplegic However, the difficult because implants such as hooks and screws often dislodged during treatment. The poor holding power these spine is challenging problem in this Methods. When fractured vertebra...
Incidental durotomy (ID) is a common intraoperative complication of spine surgery. It can lead to persistent cerebrospinal fluid leakage, which may cause serious complications, including severe headache, pseudomeningocele formation, nerve root entrapment, and intracranial hemorrhage. As result, it contributes higher healthcare costs poor patient outcomes. The purpose this study was clarify the independent risk factors that ID during posterior open surgery for degenerative diseases in adults....
Surgical site infection (SSI) is a significant complication after spinal surgery and associated with increased hospital length of stay, high healthcare costs, poor patient outcomes. Accurate identification risk factors essential to develop strategies prevent wound infections. The aim this prospective multicenter study was determine the independent SSI in posterior lumbar surgeries without fusion (laminectomy and/or herniotomy) for degenerative diseases adult patients. From July 2010 June...
Ossification of the posterior longitudinal ligament (OPLL) and ossification ligamentum flavum (OLF) are related diseases associated with spinal ligaments that can occasionally lead to thoracic myelopathy. We retrospectively analyzed clinical data 34 consecutive patients who underwent surgeries for OPLL and/or OLF at our hospital between July 2010 June 2022, statistically compared (TOPLL; n = 12) those (TOLF; 22). The mean age TOPLL group was significantly lower than TOLF (53.7 vs. 68.4...
Study Design This study retrospectively analyzed the outcome of unilateral vertebral artery ligation during cervical spine surgery. Objectives To examine influence on function brain and spinal cord. Summary Background Data There was little published information about a except for several reports from field neurosurgery. Methods Unilateral used in 15 patients with tumors or cord (age range, 13-71 years; nine male six female). The authors ligated involved only when tumor appeared minor equal...
We retrospectively reviewed 64 patients treated by the following methods: continuous head halter traction in bed (2 patients), cervical brace (19 plaster holding and trunk (15 Crutchfield's skull (28 using Japanese Orthopaedic Association grading system of motor function. A rate “no disability” was achieved 27% upper 26% lower extremities. The function maintained most patients, some improved further during follow-up period (3–10 years). overall achievement 34% 28% Because significantly...
Abstract Surgical site infection (SSI) is a serious complication following spine surgery and correlated with significant morbidities, poor clinical outcomes, increased healthcare costs. Accurately identifying risk factors can help develop strategies to reduce this devastating consequence; however, few multicentre studies have investigated for SSI posterior cervical surgeries. Between July 2010 June 2015, we performed an observational cohort study on deep in adult patients who underwent at 10...
This study aimed to investigate factors related fat infiltration in patients with lumbar degenerative diseases (lumbar disc herniation and/or spinal stenosis), examining a wide range of potential risk variables.We studied consecutive adult who underwent posterior surgery for at our hospital between July 2013 and June 2017. Preoperative magnetic resonance imaging was used evaluate the presence or absence level L4-5 paraspinal muscles using Kjaer's evaluation method. Patients without (0%-10%)...
Acrylamide (ACR) monomer produces neuropathy of the dying-back type and 4-methylcatechol (4-MC) is a potent stimulator endogenous nerve growth factor synthesis. In present study, we investigated efficacy 4-MC in promoting recovery from experimental ACR rats. Twenty-two Sprague-Dawley rats were made neuropathic by injections. They showed hindlimb paralysis, increment landing foot spread distance statistically significant reduction motor conduction velocity. After had been established, 12...
Abstract Introduction: Patients with rheumatoid arthritis (RA) tend to be immunosuppressed due RA itself and the therapeutic drugs administered. The management of surgical site infection (SSI) following upper cervical spinal instrumented fusion in patients is challenging; however, literature on treatment for such conditions scarce. We report 3 consecutive RA, who developed deep SSI posterior were treated using antibiotic-loaded bone cement (ALBC). Patient Concerns: All reported current study...
To compare the degree of medial meniscal extrusion (MME) between knees with meniscus posterior root tear (MMPRT) and degenerative tears using ultrasonography (US) in different limb positions to identify findings characteristic MMPRT.The study group comprised 25 subjects MMPRT (group RT), D), no abnormalities (MM) on magnetic resonance imaging (MRI) C) whose age was ≥40 years. MME evaluated US supine, figure-4, feet-dangling, standing positions. The by actual measurement values relative...