Hiroyuki Ogawa

ORCID: 0000-0002-0370-835X
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About
Contact & Profiles
Research Areas
  • Orthopaedic implants and arthroplasty
  • Total Knee Arthroplasty Outcomes
  • Solar and Space Plasma Dynamics
  • Orthopedic Infections and Treatments
  • Cell Image Analysis Techniques
  • Gamma-ray bursts and supernovae
  • Knee injuries and reconstruction techniques
  • Hip disorders and treatments
  • Advanced X-ray and CT Imaging
  • Astro and Planetary Science
  • Craniofacial Disorders and Treatments
  • Analytical Chemistry and Chromatography
  • Image Processing Techniques and Applications
  • Advanced Chemical Sensor Technologies
  • Medical Imaging Techniques and Applications
  • Fiber-reinforced polymer composites
  • Cleft Lip and Palate Research
  • Geomagnetism and Paleomagnetism Studies
  • Astrophysics and Cosmic Phenomena
  • Nuclear Physics and Applications
  • Hedgehog Signaling Pathway Studies
  • Venous Thromboembolism Diagnosis and Management
  • Musculoskeletal synovial abnormalities and treatments
  • Natural Fiber Reinforced Composites
  • Chemical Synthesis and Analysis

Kinan Hospital
2011-2025

Japan Tobacco (Japan)
2020-2023

Clinical Orthopaedics and Related Research
2019

Nissan Tamagawa Hospital
2018

Tokyo University of Agriculture and Technology
2012

Rikkyo University
1995-2002

Hamamatsu University School of Medicine
1986-1993

Ibaraki University
1984-1988

Hitachi (Japan)
1984-1988

Gakushuin University
1983

Abstract Background Previous studies reported good outcomes of acetabular cup placement using portable navigation systems during THA. However, we are aware no prospective comparing inexpensive augmented reality (AR) technology with accelerometer-based in Questions/purposes (1) Is the accuracy AR-based system superior to that an system? (2) Do frequencies surgical complications differ between two groups? Methods We conducted a prospective, two-arm, parallel-group, randomized controlled trial...

10.1097/corr.0000000000002602 article EN cc-by-nc-nd Clinical Orthopaedics and Related Research 2023-03-02

Abstract Background We developed an augmented reality (AR)-based portable navigation system in which the surgeon can view pelvic plane and placement angle of acetabular cup on display a smartphone during THA. Questions/purposes (1) Is component more accurate using AR-based compared with conventional freehand technique? (2) intraoperative measurement when goniometer? Methods Forty-six patients were randomly assigned to undergo THA (AR group) or mechanical alignment guide (conventional group)....

10.1097/corr.0000000000001083 article EN Clinical Orthopaedics and Related Research 2019-12-06

Abstract Background This pilot study was performed to examine the accuracy of AR-KNEE system, an imageless navigation system using augmented reality (AR) technology for total knee arthroplasty. The enables surgeon view information from superimposed on surgical field a smartphone screen in real time. Methods Using one resected 10 tibial sawbones with viewing axis and aiming varus/valgus, posterior slope, internal/external rotation angles, resection level field. We computed tomography measured...

10.1186/s40634-019-0212-6 article EN cc-by Journal of Experimental Orthopaedics 2019-11-11

Background: An augmented reality (AR)-based navigation system allows visualization of the center femoral head and mechanical axis superimposed on surgical field during total knee arthroplasty (TKA) may help surgeons to improve accuracy distal resection. Methods: First, we resected 10 Sawbones specimens using AR-based performed computed tomography (CT) measure resection angle part femur. We calculated absolute values differences between angles measured CT images displayed smartphone screen...

10.2106/jbjs.oa.21.00001 article EN cc-by-nc-nd JBJS Open Access 2021-07-01

10.1016/s0008-6223(99)00146-3 article EN Carbon 2000-01-01

Two balloon flights with identical X-ray detectors were carried out in the summer of 1966, one from De Bilt, Netherlands (geomagnetic latitude 53 °N), and other Taiyomura, Japan 25 °N). The detector consists a NaI(Tl) crystal, 12.5 mm thick 50 diameter, surrounded by an effective collimator-shield plastic scintillator guard counter. rotating disk incorporated enables separation "forward" X rays cosmic-ray-induced background. results are very good agreement each other. In view rather large...

10.1139/p68-270 article EN Canadian Journal of Physics 1968-05-15

Although periarticular injection plays an important role in multimodal pain management following total hip arthroplasty (THA), there is no consensus on the optimal composition of injection. In particular, it not clear whether addition a corticosteroid improves relief achieved nor associated with more complications than are observed without corticosteroid. The aim this study was to quantify safety and effectiveness cortocosteroid use during THA.We conducted prospective, two-arm,...

10.1302/0301-620x.102b10.bjj-2020-0428.r1 article EN cc-by-nc-nd The Bone & Joint Journal 2020-10-01

We have developed an innovative system, AI QM Docking Net (AQDnet), which utilizes the three-dimensional structure of protein-ligand complexes to predict binding affinity. This system is novel in two respects: first, it significantly expands training dataset by generating thousands diverse ligand configurations for each complex and subsequently determining energy configuration through quantum computation. Second, we devised a method that incorporates atom-centered symmetry function (ACSF),...

10.1021/acsomega.3c02411 article EN cc-by-nc-nd ACS Omega 2023-06-16

To illustrate a surgical technique for augmented reality (AR)-assisted unicompartmental knee arthroplasty (UKA) and report preliminary data.We developed an AR-based navigation system that enables the surgeon to see tibial mechanical axis superimposed on patient's leg in addition cutting angle. We measured resection angle 11 UKAs using postoperative radiographs calculated absolute difference between preoperative target The was determined each patient: mean values were 0.7° ± 1.0° varus...

10.1186/s40634-022-00525-4 article EN cc-by Journal of Experimental Orthopaedics 2022-09-05

Despite its clinical benefits, intraoperative navigation is currently used only in approximately 20% of total hip arthroplasties (THA) partly due to the high cost systems and time-consuming preoperative preparation. By providing a simpler less expensive alternative, use likely increase among surgeons. In this study, we sought validate accuracy utility Fluoro HIP, newly developed cup angle measurement software that runs on iOS devices. Twenty-seven patients who underwent primary arthroplasty...

10.1016/j.jjoisr.2024.02.002 article EN cc-by-nc-nd Journal of Joint Surgery and Research 2024-03-12
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