Publications by authors named "Toshiki Konishi"
Article Synopsis
- - The study aimed to assess the effectiveness of the tapered cone stem (Wagner Cone) in total hip arthroplasty (THA) for patients with excessive femoral anteversion and following femoral osteotomy.
- - Results showed a 96.7% five-year survival rate for the Wagner Cone stem, with fewer instances of prosthetic impingement compared to the Taperloc stem (5.5% vs. 20.0%).
- - The analysis indicated that using the Wagner Cone stem led to better patient-reported outcomes concerning pain and satisfaction, likely due to reduced stem anteversion.
Article Synopsis
- The study focuses on the Coronal Plane Alignment of the Knee (CPAK) classification to understand its impact on the clinical outcomes of total knee arthroplasty (TKA) in patients with osteoarthritis.
- Researchers analyzed data from 231 patients who underwent TKA, comparing preoperative and postoperative knee alignment using various clinical outcome measures, like the Knee Society Score.
- The results showed that specific changes in knee alignment classes negatively affected patient-reported outcomes, suggesting that knee alignment plays a crucial role in post-surgery recovery.
Article Synopsis
- - The study compares the accuracy of cup placement in total hip arthroplasty (THA) among three methods: robotic arm-assisted (R-THA), computed tomography-based navigation (N-THA), and manual procedure (M-THA) in patients with dysplastic bone deformities.
- - Results showed that R-THA had significantly higher accuracy for both cup position (78% within 3 mm of target) and orientation (91% within 5°) compared to N-THA and M-THA, indicating it is the most effective method.
- - Although N-THA also outperformed M-THA in orientation accuracy (62% within 5°), both R-
Purpose: This study assessed rotational mismatch between components after total knee arthroplasty (TKA) in the supine and standing positions and aimed to investigate the effect of rotational mismatch in the standing position on postoperative patient-reported outcome measures (PROMs).
Methods: Seventy-one patients (71 knees) who underwent TKA for medial knee osteoarthritis were used to investigate rotational mismatches between components. Rotational mismatches between components were examined on postoperative standing whole-leg and supine knee radiographs using a three-dimensional-to-two-dimensional model image registration technique, and the angles between the reference axes of the components were measured.
No report has clarified the frequency and interacting factors affecting sleep disturbance among Asian patients at midterm after total knee arthroplasty (TKA). This study aimed to evaluate the frequency of sleep disturbance at midterm after TKA in a Japanese cohort and to identify intervening factors for sleep. We hypothesized that residual knee pain and decreased functional capability negatively interact with sleep quality after TKA.
View Article and Find Full Text PDFTo our knowledge, only one previous report described the treatment of osteochondral autograft for steroid-induced osteonecrosis of the humeral head (ONHH) in a middle-aged patient. The present report describes a 20-year-old man who was found to have avascular osteonecrosis of the right humeral head after corticosteroid pulse treatment, followed by oral corticosteroid therapy. The patient complained of serious right shoulder pain and limited range of motion (ROM).
View Article and Find Full Text PDFThe structure of colloidal crystals of silica particles in water was studied by using the two-dimensional (2D) ultra-small-angle X-ray scattering (USAXS) technique. By violent shaking of the dispersion, large (body-centered cubic, bcc) crystals were broken into microcrystals while the lattice structure and lattice constant were preserved. The 2D-USAXS profiles revealed that the [111] direction of bcc microcrystals was parallel to the capillary axis and their orientational distribution with respect to the capillary axis was random.
View Article and Find Full Text PDF