Publications by authors named "Shinya Sunagawa"
Article Synopsis
- - The study compared the radiological features and short-term clinical outcomes of two knee surgeries: open-wedge high tibial osteotomy (OWHTO) and tibial condylar valgus osteotomy (TCVO), focusing on patients with medial compartment knee osteoarthritis (OA).
- - Results showed that while TCVO patients had more severe OA and instability before surgery, both surgery types improved alignment and instability post-operation, though TCVO patients had lower range of motion and KOOS scores in specific areas like symptoms and pain.
- - The findings suggest that while both procedures are effective, TCVO may be more suitable for patients with advanced OA, joint incongruity, and instability.
Joint moment is the resultant force of limb movements. However, estimation methods for joint moments using surface electromyography frequently use joint angles instead of limb angles. The limb angle in joint moment estimation using electromyography could clarify the effects of muscle activity on the limbs: acceleration, deceleration, or stabilization.
View Article and Find Full Text PDFPurpose: Immobilization osteopenia is a major healthcare problem in clinical and social medicine. However, the mechanisms underlying this bone pathology caused by immobilization under load-bearing conditions are not yet fully understood. This study aimed to evaluate sequential changes to the three-dimensional microstructure of bone in load-bearing immobilization osteopenia using a fixed-limb rat model.
View Article and Find Full Text PDFThe operating theater is recognized to involve a high frequency of occupational blood and body fluid contacts. This study aimed to visualize the production of blood and body fluid airborne particles by surgical procedures and to investigate risks of microbial contamination of the conjunctival membranes of surgical staff during orthopedic operations. Two physicians simulated total knee arthroplasty (TKA) and total hip arthroplasty (THA) in a bio-clean theater using model bones.
View Article and Find Full Text PDFUnlabelled: The annual incidence of new hip fractures increased from 2005 to 2014 in Nagasaki and females were much more affected. High-risk factors were identified as age ≥ 80 years, winter, indoors, living room, Monday, and early morning. Seven days after admission, most patients remained hospitalized and had been treated surgically.
View Article and Find Full Text PDFBackground: The purpose of this study was to compare radiological features between high tibial osteotomy (HTO) and tibial condylar valgus osteotomy (TCVO), in order to define the radiological indication criteria for TCVO.
Methods: Thirty-two cases involving 35 knees that had undergone HTO and the same number that had undergone TCVO for knee osteoarthritis were retrospectively evaluated. Characteristics of both groups did not differ significantly.
Background: Surgical-site infections due to intraoperative contamination are chiefly ascribable to airborne particles carrying microorganisms. The purpose of this study is to identify the actions that increase the number of airborne particles in the operating room.
Methods: Two surgeons and two surgical nurses performed three patterns of physical movements to mimic intraoperative actions, such as preparing the instrument table, gowning and donning/doffing gloves, and preparing for total knee arthroplasty.