A5081859248- Orthopaedic implants and arthroplasty
- Total Knee Arthroplasty Outcomes
- Orthopedic Infections and Treatments
- Hip disorders and treatments
- Dental Implant Techniques and Outcomes
- Bone Tissue Engineering Materials
- Pelvic and Acetabular Injuries
- Lower Extremity Biomechanics and Pathologies
- Bone and Joint Diseases
Kyushu University
2012-2016
Abstract The purpose of this study was to examine the effects ceramic femoral head material, size, and implantation periods on wear annealed, cross‐linked ultra‐high molecular weight polyethylene (UHMWPE) (XLPE) in total hip arthroplasty compared non‐cross‐linked conventional UHMWPE (CPE). XLPE fabricated by cross‐linking with 60 kGy irradiation annealing. Femoral heads made from zirconia alumina ceramics cobalt–chrome (CoCr) 22 or 26 mm diameter were used. In retrospective cohort study,...
Dynamic hip kinematics during weight-bearing activities were analyzed for six healthy subjects. Continuous X-ray images of gait, chair-rising, squatting, and twisting taken using a flat panel detector. Digitally reconstructed radiographic used 3D-to-2D model-to-image registration technique. The root-mean-square errors associated with tracking the pelvis femur less than 0.3 mm 0.3° translations rotations. For maximum flexion angles averaged 29.6°, 81.3°, 102.4°, respectively. was tilted...
Objective Compared to sagittal pelvic tilt, only a few studies have examined axial rotation on anteroposterior radiographs. We therefore quantified 3-D using the width and height ratio of obturator foramina under various tilts. Methods Using CT reconstructions 10 healthy pelvises, anterior planes (APPs) were rotated by 20° in 5° increments plane with degrees tilt. The correlation between angle (WR) height/width (H/W) examined. Results Axial WR showed high linear regardless coefficient...
The purpose of this study was to examine the effects ceramic femoral head material on wear annealed, crosslinked ultra-high molecular weight polyethylene (UHMWPE) (XLPE) in total hip arthroplasty compared non-crosslinked conventional UHMWPE (CPE). XLPE fabricated by crosslinking with 60 kGy irradiation and annealing. Femoral heads made from zirconia alumina ceramics, cobalt-chrome (CoCr) 22 mm or 26 diameter were used. In study, penetration into cup measured digitally radiographs 70 hips 50...