A5019744276- Foot and Ankle Surgery
- Lower Extremity Biomechanics and Pathologies
- Diabetic Foot Ulcer Assessment and Management
- Tendon Structure and Treatment
- Spine and Intervertebral Disc Pathology
- Rheumatoid Arthritis Research and Therapies
- Musculoskeletal pain and rehabilitation
- Geomagnetism and Paleomagnetism Studies
- Spinal Fractures and Fixation Techniques
- Advanced Computational Techniques and Applications
- Gait Recognition and Analysis
- Textile materials and evaluations
- Magnetic and Electromagnetic Effects
- Autoimmune Neurological Disorders and Treatments
- Nail Diseases and Treatments
- Orthopedic Infections and Treatments
- Prosthetics and Rehabilitation Robotics
- Orthopedic Surgery and Rehabilitation
- Drug-Induced Adverse Reactions
- Bone health and treatments
- Bone Metabolism and Diseases
- Osteoarthritis Treatment and Mechanisms
- Musculoskeletal synovial abnormalities and treatments
- Neurological disorders and treatments
- Bone fractures and treatments
The University of Tokyo
2018-2024
University of Tokyo Hospital
2020
Shinshu University
2010
Abstract Objectives We developed the deep neural network (DNN) model to automatically measure hallux valgus angle (HVA) and intermetatarsal (IMA) on foot radiographs. The objective is assess accuracy of by comparing manual measurement ankle surgeons. Materials methods A DNN was predict bone axes first proximal phalanx all metatarsals from fifth in dataset used for development consisted 1798 radiographs collected a population-based cohort patients at our clinic. retrospective validation...
Abstract To investigate the trend and factors related to occurrence of osteoarthritis (OA)-like features on knee radiographs rheumatoid arthritis (RA) patients undergoing total arthroplasty (TKA) in recent decades. classify antero-posterior into ‘RA’ ‘OA-like RA’ groups, a deep learning model was developed by training network using end-stage arthropathy RA obtained during 2002–2005 primary OA 2007–2009. We used this categorize 796 radiographs, which were recorded before TKA 2006–2020,...
Abstract We found that a ciliated protozoan, Paramecium , swam perpendicular to static (DC) magnetic field (0.68 T). The swimming orientation was similar even when the ionic current through cell membrane disappeared after saponin treatment. To determine diamagnetic anisotropy of intracellular organs, macronuclei, cilia, and secretory vesicles, trichocysts, were selectively isolated. Both cilia trichocysts tended align their long axis parallel (0.78 mutants lack also field, although...
This study aimed to investigate the trend of joint destruction patterns on knee radiographs patients with rheumatoid arthritis (RA) undergoing total arthroplasty (TKA) over past 16 years.Medial space, lateral medial spur area, area (L-spur), and femoro-tibial angle were obtained from 831 preoperative RA who underwent TKA between 2006 2021 using software capable automatic measurements. Non-hierarchical clustering was performed based these five parameters. Trends in individual radiographic...
Non-steroidal anti-inflammatory drug (NSAID)-related small intestinal complications exist, since developed new diagnostic modalities, such as balloon and capsule endoscopies. Some experiments have shown rebamipide to protect from NSAID-induced complications. The purpose of this study is investigate whether the effective concentrations (COR) are present in intestine after taking an ordinary clinical dose double drug. Twelve healthy male subjects were enrolled. After 100 or 200 mg rebamipide,...
Adult-acquired flatfoot deformity is a progressive flattening of the arch foot that results from posterior tibial tendon insufficiency with predilection for middle-aged women. A lateralized force vector associated hindfoot valgus in adult-acquired produces lateral ankle pain due to impingement at hindfoot, which can even lead stress fractures distal fibula. Here, we present rare case 73-year-old woman who presented bilateral taluses and unilateral fibula accompanied by severe deformities.
This study aims to investigate the influence of lumbar spine disorders on development asymmetric hallux valgus (HV). Data from fifth survey Osteoarthritis/Osteoporosis Against Disability (ROAD) study, a nationwide prospective in Japan, were analyzed. HV severity was categorized into 4 grades based radiographic angle, and defined as having at least one either side, with difference two or more between left right. Controls matched both Normal group (without sides) Symmetric (HV side less...
Category: Other; Basic Sciences/Biologics Introduction/Purpose: In recent years, a paradigm shift has emerged in the preoperative planning for lower extremity osteotomies or arthroplasty. The focus shifted from loading axis during static standing known as Mikulicz line, to gait. These methods assumed that ground reaction force (GRF) vector directed toward center of mass (CoM) on frontal plane stance phase However, no study clarified relationship between CoM and GRF vector. Furthermore, it is...
Category: Midfoot/Forefoot; Bunion Introduction/Purpose: Various factors contribute to hallux valgus (HV), including footwear, genetics, gender, anatomical factors, and joint laxity. Theoretically, these should affect both sides equally, yet overwhelmingly, bilateral cases are more common. Although rare, there instances of unilateral or with significant asymmetry between the left right sides. However, is a lack systematic investigation into background such cases. Methods: Data from fifth...
Chronic ankle instability (CAI) is a disease that can be caused by inadequately treated sprains, involving subjective and recurrent sprains. Diagnostic criteria of CAI have not been established because existing examinations used in clinical practice, including image inspections or manual examinations, limited ability detecting dynamic instabilities, which are usually recognized physical activities. Gait analysis preferable for diagnosing CAI; however, these measurements require large-scale...
Background: ShokacShoes™, a shoe-based sensor capable of measuring six-axial local plantar forces at specific foot areas–the heel, first, and fifth metatarsal head, debuted in Japan 2021. It incorporates an inertial motor unit (IMU) within the sole. However, test-retest reliability these data remains unexplored.Research question: Do obtained from ShokacShoesTM exhibit sufficient reliability?Methods: We collected right feet 40 healthy participants using ShokacShoes™. Each participant...
Case: Stiff-person syndrome is a rare neurological disorder characterized by rigidity and painful spasms of the trunk limbs, patients sometimes have difficulty in walking due to rigid toe deformities. This case report 76-year-old woman suffering from stiff-person with deformities regained ability after metatarsal osteotomy cutting extensors for all toes left foot. Conclusion: For syndrome, surgical intervention powerful treatment option when they developed despite adequate pharmacological treatment.
Gnathodiaphyseal dysplasia is a generalized skeletal syndrome characterized by frequent bone fractures in childhood, sclerosis and bowing of tubular bones, cemento-osseous lesions the jawbones. We present case 53-year-old man with gnathodiaphyseal who presented pathological fracture tibial shaft. Internal fixation Ender nail was successfully performed 2 years follow-up.This first report describing treatment an adult patient dysplasia. effective for deformity. Callus formation observed without delay.
Medial bone excrescence at the base of distal phalanx hallux is a common manifestation which rarely painful. In this case report, we described first becoming symptomatic one year after metatarsophalangeal (MTP) joint arthrodesis great toe in 74-year-old female. The medial bony was obscure preoperatively became obvious postoperatively anteroposterior foot radiographs. patient successfully treated by an excision excrescence. order to clarify pathology excrescence, reviewed radiographs with...
The purpose of this study was to clarify the effect gait protocols and postoperative shoes on forefoot load in preoperative patients for disorders compare footwear comfort between different types shoes.Fourteen subjects scheduled undergo surgeries were recruited. maximum force under region measured during 10 m straight walking two patterns with six shoe types. Visual analogue scale (VAS) scores comfort, subjective lower thigh pain, electrical activities muscles also evaluated.The body...