Publications by authors named "Hironobu Sato"

Purpose: Although some symptoms that often occur with hip joint osteoarthritis (OA) may be involved in the appearance of gait disturbance, the main cause has not been identified. We hypothesised that the abnormalities in gait trajectory of patients with hip joint OA are mainly caused by limited range of motion of the hip joint or the presence of leg-length discrepancy, or both. To investigate this hypothesis, we examined whether the abnormal gait trajectory in patients with hip joint OA can be reproduced in healthy individuals by asking them to wear a hip orthosis and shoe orthotic (insole).

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Purpose: To investigate the effect of prosthodontic treatment on the ingestible food profile in adult Japanese outpatients, and to identify the related risk factors that can deteriorate the profile.

Methods: The participants were 277 outpatients who visited university-based specialty clinics in Japan for prosthodontic treatment. The demographic data, number of present teeth assessed via intraoral examination, and oral health-related quality of life assessed by the total Oral Health Impact Profile (OHIP-J54) scores of all participants were recorded before treatment.

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Introduction: Moyamoya syndrome associated with Williams syndrome is very rare but has been reported to have severe outcomes. Here, we reported a case of Williams syndrome with moyamoya syndrome that was confirmed by the presence of an RNF213 mutation.

Case Presentation: A 6-year-old boy with Williams syndrome presented with right hemiparesis induced by hyperventilation.

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The purpose of treatment for unilocular intracranial cysts (UICs) is to release elevated intracranial pressure. Neuroendoscopic fenestration (NF) is one of the most effective and minimally invasive options for treating UICs, especially in young children; however, the optimal location and number of fenestrations, the necessity of using endoscopic third ventriculostomy (ETV) in combination with fenestration, and the course of treatment are not well known. We retrospectively reviewed the hospital records between 2012 and 2019.

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Amniotic band syndrome (ABS) is a congenital abnormality that can cause a variety of deformities. Here, we report a case of ABS in which the amniotic band adhered to the skull, causing a partial cranial defect that was difficult to differentiate from an occipital encephalocele. The mother was a 24-year-old with an unremarkable medical and family history.

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Recombinant Fasciola cathepsin L-1 (rCatL1) was evaluated in enzyme-linked immunosorbent assay (ELISA) for the serodiagnosis of human fasciolosis in Japan. Quality characteristics of the test were accessed by receiver operating characteristic (ROC) analysis, with sera from fasciolosis patients (n = 10), patients with no evidence of parasitic infections (n = 29), and patients with other helminth infections (n = 119). Both the sensitivity and specificity of the test achieved 100% with the control samples.

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Fasciolosis, a zoonotic disease caused by liver flukes of the genus Fasciola, has been reported in Hokkaido (Yezo) sika deer (Cervus nippon yesoensis) in Hokkaido Prefecture, Japan; however, the actual seroprevalence in the animal has not been adequately evaluated. The objective of the present study was to analyze the seroprevalence of the disease among Hokkaido sika deer. Recombinant cathepsin L1 (rCatL1) was used as an antigen for an indirect enzyme-linked immunosorbent assay (ELISA) to detect antibodies against Fasciola flukes.

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Article Synopsis
  • Femoral offset (FO) and limb length discrepancy (LLD) play a significant role in recovery after total hip arthroplasty (THA), affecting patient satisfaction and muscle recovery.
  • A study of 92 patients found that a reduction in global FO by more than 5 mm post-surgery is linked to hip abductor muscle weakness, while LLD of 20 mm or less did not significantly affect muscle strength.
  • Additionally, 3-D gait analysis indicated that weakness in straight leg raising (SLR) contributed to increased gait asymmetry, particularly in the sagittal plane.
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Background: Overall survival (OS) of patients with diffuse intrinsic pontine glioma (DIPG) is poor, with radiation therapy (RT) the only intervention that transiently delays tumor progression. Hypofractionated RT and re-irradiation at first progression have gained popularity in improving the quality of life of such patients.

Methods: We performed a retrospective review of children with DIPG treated at Kanagawa Children's Medical Center from 2000 to 2018.

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Study Design: Cohort study.

Objectives: Long-term urological outcomes in patients with spinal lipoma after prophylactic tethered cord release (TCR) in infancy were investigated.

Setting: Children's hospital in Yokohama, Japan.

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The aim of this study was to assess inter-and intra-grader agreement with the use of digital scanning and a tooth preparation assessment software program in comparison to the current traditional visual grading method in a dental student simulation laboratory. Students' typodont teeth preparations from previous practical examinations were used (cast crown n=50; cast fixed partial denture abutments n=50). Five preclinical instructors received calibration training and evaluated each of the preparations by the traditional visual grading method using a rubric.

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Purpose: We compared the outcome of total hip arthroplasty (THA) in this age group using direct anterior or posterior approach.

Methods: We performed a retrospective analysis following consecutive primary THA in patients over 80 years.

Results: The DAA group demonstrated significantly shorter length of stay, better functional improvement, no dislocation or revision while PA group required two revisions due to dislocation.

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Article Synopsis
  • Motor disorders linked to orthopedic problems, especially due to aging, can limit physical activity and daily living activities (ADL).
  • A study was conducted on 228 women with hip issues, assessing their hip function and motor strength through JHEQ and GLFS-25 scores.
  • Results showed that after treatment, certain patients exhibited motor functions comparable to healthy peers, highlighting the importance of maintaining strength to enhance overall motor function.
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Purpose: The purpose of this study was to evaluate the incidence of peri-implantitis and to identify potential associated risk indicators.

Methods: This longitudinal study included 477 patients treated with 1420 implants. Medical and dental histories were evaluated in all patients.

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Background: The presence/absence of postoperative anemia are presumed to have an impact on early recovery after surgery. This study was performed to compare hip muscle strength and hemoglobin during the perioperative period in 82 patients undergoing THA.

Methods: Evaluation of presence/absence of anemia was performed by calculating the 10-day postoperative/preoperative Hb ratio.

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Purpose: We compare the complication rate in transition to direct anterior (DAA) from posterior approach (PA) for total hip arthroplasty (THA).

Methods: This is a retrospective cohort single-surgeon study of consecutive primary THAs over a transition period from PA to DAA.

Results: There were no significant differences in dislocation rate, femoral fracture, lateral femoral cutaneous nerve injury or success rate in cup inclination and anteversion angle between two groups.

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Background: We think that it is necessary to evaluate whether the patient after total hip arthroplasty has achieved age-appropriate locomotor ability by improvement in hip joint function. The 25-question Geriatric Locomotive Function Scale (GLFS-25) have been determined age-specific standard values for the general population. The aim of this study was to compare postoperative hip muscle strength and functional performance at 3 months after THA with preoperative levels, and to compare the outcomes at 3 months after THA with the function of age-matched adults without hip disease.

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Purpose: The Japan Prosthodontic Society developed a multi-axis assessment protocol to evaluate the complex variations in patients who need prosthodontic care, and to classify the level of treatment difficulty. A previous report found the protocol to be sufficiently reliable. The purpose of this multi-center cohort study was to evaluate the validity of this multi-axis assessment protocol.

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In this study, a series of perpendicular lamellae-forming poly(polyhedral oligomeric silsesquioxane methacrylate-block-2,2,2-trifluoroethyl methacrylate)s (PMAPOSS-b-PTFEMAs) was developed based on the bottom-up concept of creating a simple yet effective material by tailoring the chemical properties and molecular composition of the material. The use of silicon (Si)-containing hybrid high-χ block copolymers (BCPs) provides easy access to sub-10 nm feature sizes. However, as the surface free energies (SFEs) of Si-containing polymers are typically vastly lower than organic polymers, this tends to result in the selective segregation of the inorganic block onto the air interface and increased difficulty in controlling the BCP orientation in thin films.

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The initial step of bone regeneration requires the migration of osteogenic cells to defective sites. Our previous studies suggest that a salmon DNA-based scaffold can promote the bone regeneration of calvarial defects in rats. We speculate that the salmon DNA may possess osteoinductive properties, including the homing of migrating osteogenic cells.

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Three-dimensional (3D) cell culture is a powerful in vitro technique to study the stratification and differentiation of keratinocytes. However, culture conditions, including culture media, supplements, and scaffolds (e.g.

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Purpose: The Japan Prosthodontic Society (JPS) has proposed a new diagnostic nomenclature system (DNS), based on pathogenesis and etiology, to facilitate and improve prosthodontic treatment. This system specifies patient disability and the causative factor (i.e.

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A 46-year-old diabetic man underwent the removal of a hematoma caused by traumatic brain injury. After surgery, severe hyponatremia occurred. The subsequent administration of NaCl and fludrocortisone improved his laboratory findings.

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Attention is the process by which information and selection occurs, the thalamus plays an important role in the selective attention of visual and auditory information. Selective attention is a conscious effort; however, it occurs subconsciously, as well. The lateral geniculate body (LGB) filters visual information before it reaches the cortex (bottom-up attention).

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