Periprosthetic infection after total knee arthroplasty is a devastating complication, and two-stage exchange is the standard of care in North America. Articulating and static spacers have been developed to treat these infections but controversy exists over which method is superior. We performed a systematic review using MEDLINE and other literature search engines identifying 47 articles meeting inclusion criteria producing 2011 spacers for comparison. Articulating spacers had increased range of motion 100.1° vs. 82.9° (P<0.003), lower re-infection rate 7.5% (P<0.0031), facilitated re-implantation (P<0.0011), and developed less bone loss (P<.0001) than did static spacers. This study answers several clinically relevant questions and provides useful information in guiding clinical decision making in treating periprosthetic infection.
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http://dx.doi.org/10.1016/j.arth.2013.08.013 | DOI Listing |
Polymers (Basel)
January 2025
Department of Engineering, University of Palermo, Viale delle Scienze, Edificio 6, 90128 Palermo, Italy.
This paper deals with the design of novel epoxy adhesives by incorporating thermoplastic polymers such as polyetherimide (PEI) and poly(ε-caprolactone) (PCL) into a bio-based and recyclable epoxy resin, known as Polar Bear. The adhesives were characterized by their mechanical (quasi-static and dynamic) and rheological properties, thermal stability, and adhesion properties in single-lap joints tested at three different temperatures (i.e.
View Article and Find Full Text PDFMaterials (Basel)
January 2025
Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan 817467344, Iran.
Friction stir spot welding (FSSW) technology relies on the generation of frictional heat during the rotation of the welding tool in contact with the workpiece as well as the stirring effect of the tool pin to produce solid-state spot joints, especially for lightweight materials. Although FSSW offers significant advantages over traditional fusion welding, the oxidation of the interfacial bond line remains one of the most challenging issues, affecting the quality and strength of the joint under both static and cyclic loading conditions. In this experimental study, inert argon gas was employed to surround the joint, aiming to prevent or minimize the formation of the interfacial oxides.
View Article and Find Full Text PDFActa Ortop Mex
January 2025
Hospital Israelita Albert Einstein, Sao Paulo, Brazil. Department of Orthopedics and Traumatology, University of Sao Paulo, Sao Paulo, Brazil.
Patellofemoral instability (PFI) is a multifactorial condition typically observed following initial traumatic patellar dislocation. PFI depends on various factors such as limb alignment, bony structure, and the integrity of static and dynamic stabilizers. Patients with below-knee amputation have a higher risk of experiencing PFI.
View Article and Find Full Text PDFExp Gerontol
January 2025
Graduate School of Shandong Sport University, Jinan 250102, Shandong, PR China.
Objective: To investigate the impact of practicing the health Qigong-Baduanjin exercise on lower limb balance among elderly individuals.
Methods: Two intervention methods, Baduanjin and brisk walking, were applied to study the effect of exercise on senior balancing. Sixty elderly individuals aged 65 to 79 were selected and randomly divided into the Baduanjin group, the brisk walking group, and the control group that did not engage in exercise.
Biomimetics (Basel)
December 2024
Department of Mechanical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
Despite technological advancements in various industries, the equine sector still relies on old methods like horseshoeing. Although traditional, the industry is dynamic and well-funded. Therefore, there is a need to modernize these methods with more reliable and less invasive solutions for attaching horseshoes to horse hooves.
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