A5076529360- Orthopaedic implants and arthroplasty
- Total Knee Arthroplasty Outcomes
- Orthopedic Infections and Treatments
- Hip disorders and treatments
- Bone and Joint Diseases
- Hip and Femur Fractures
- Prosthetics and Rehabilitation Robotics
- Bone fractures and treatments
- Educational Robotics and Engineering
- Knee injuries and reconstruction techniques
- Shoulder Injury and Treatment
- Pelvic and Acetabular Injuries
- Cardiac, Anesthesia and Surgical Outcomes
- Medical Imaging and Analysis
- AI and Multimedia in Education
- Lower Extremity Biomechanics and Pathologies
- Anatomy and Medical Technology
Osaka Rosai Hospital
2016-2025
Rakuwakai Otowa Hospital
2004-2013
Kyowa Chemical Industry (Japan)
2006
Osaka Minami Medical Center
2004
Osaka University
2004
Whether postoperative posterior pelvic tilt progression is an independent risk factor for cup revision after total hip arthroplasty (THA) with a conventional polyethylene (PE) liner unclear. This long-term follow-up study assessed the association between and THA using porous-coated anatomic (PCA) system. retrospective cohort included 94 patients who underwent PCA system participated in mean of 25 years. The Japanese Orthopaedic Association (JOA) score was clinical outcome, prosthetic...
We investigated changes in the axial alignment of ipsilateral hip and knee after total arthroplasty (THA).We reviewed 152 patients undergoing primary THA (163 hips; 22 hips men, 141 women) without a pre-operative flexion contracture. The mean age was 64 years (30 to 88). diagnosis osteoarthritis (OA) 151 (primary 18 hips, secondary dysplasia 133) non-OA 12 hips. A posterolateral approach with repair external rotators used 134 an anterior 29 measured leg length offset on radiographs, femoral...
Abstract The ROBODOC system has provided better fit and fill of the stem less destruction bony architecture than with manual surgery. These benefits might affect femoral periprosthetic bone remodeling. We evaluated effects robotic milling in cementless total hip arthroplasty (THA) a longitudinal 24‐month follow‐up study using dual energy X‐ray absorptiometry (DEXA) plain radiographs 29 patients (31 hips) after THA 24 (27 same design. To minimize influence other factors on remodeling, only...
Abstract Femoro‐acetabular impingement has been proposed as a causative factor of primary hip osteoarthritis. However, osteoarthritis the is infrequent in Japan and other Asian countries, even though hips Asians frequently sustain impingement, since lifestyle commonly requires larger range motion than Western lifestyle. Therefore, using open‐configuration MRI, we investigated whether actually occurs during some traditional Japanese positions. The 5 healthy females were examined sitting...
Early postoperative functional recovery is important in older patients with lower-extremity fractures to prevent disuse, and periprosthetic femoral (PFFs) are no exception. This study aimed compare the early phase after revision for PFF loose stems between cemented cementless stems.
Introduction . The perforation and fracture of the femur during removal bone cement in revision total hip arthroplasty (THA) are serious complications. ROBODOC system has been designed to selectively remove from femoral canal, but results have not reported yet. purpose our study was evaluate clinical radiographic THA using for removal. Materials Methods subjects comprised 19 patients who underwent system. minimum duration follow-up 76 months (median, 109 months; range, 76–150 months). extent...
We report a novel case of the simultaneous post and cone fractures polyethylene (PE) insert in mobile-bearing posterior-stabilized total knee arthroplasty. Twelve years after primary arthroplasty, 72-year-old male patient presented with recurring right instability was diagnosed wear PE based on physical radiological examinations. Revision surgery performed. The had fractured simultaneously. Moreover, femoral tibial components were direct contact each other. One year post-revision, function...
Abstract Background The newly-designed alumina ceramic medial pivot total knee prosthesis was introduced to reduce polyethylene wear and better fit the anatomical morphology of Asian population. This study aimed clarify long-term clinical results arthroplasty over a minimum follow-up period 10 years. Methods data 135 consecutive patients who underwent primary were analyzed in this retrospective cohort study. Patients examined 10-year period. range motion, Knee Society Score (KSS) score,...
A system for evaluating the soft-tissue-generated forces at hip joint was developed. The enabled measurement of contact pressure distribution surfaces, as well evaluation artificial condition during total arthroplasty (THA). First, a sensor module that forms part constructed. Eight small sensors were installed in spherical head component ball-and-socket joint. Next, software recording and visualizing detected pressures 1-millisecond intervals displayed real time via 3D computer graphics on...
A system for evaluating the soft-tissue-generated forces at hip joint was developed. The enabled measurement of contact pressure distribution surfaces, as well evaluation artificial condition during total arthroplasty (THA). First, a sensor module that forms part constructed. Eight small sensors were installed in spherical head component ball-and-socket joint. Next, software recording and visualizing detected pressures 1-millisecond intervals displayed real time via 3D computer graphics on...
We constructed a 4-dimensional musculoskeletal model for patients having had total hip arthroplasty (THA), which aims to simulate the movement of patient's inner body structure and estimates complications after THA. This reflects patient-specific characteristics bone geometry, implant alignment movement. In order estimate direction muscle force length muscles, we have developed string-typed representing route muscles. The strings expand contract according origin insertion location muscle....