Dental implant-related infections, which lack effective therapeutic strategies, are considered the primary cause for treatment failure. Pulsed electromagnetic field (PEMF) technology has been introduced as a safe and effective modality for enhancing biological responses. However, the PEMF effect on modulating microbial diversity has not been explored. Thus, we tested a miniaturized PEMF biomedical device as a healing component for dental implants. PEMF activation did not alter the chemical composition, surface roughness, wettability, and electrochemical performance. PEMF effectively controlled chronic in vitro polymicrobial microbial accumulation. The in vivo study where devices were inserted in the patients' oral cavities and 16S RNA sequencing analysis evidenced a fivefold or more reduction in 23 bacterial species for PEMF group and the absence of some species for this group, including pathogens associated with implant-related infections. PEMF altered bacterial interactions and promoted specific bacterial pathways. PEMF has emerged as an effective strategy for controlling implant-related infections.
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http://dx.doi.org/10.1038/s41522-025-00667-0 | DOI Listing |
The diagnosis, risk factors, treatment algorithms, and long-term sequelae of superficial and deep, implant-related infections in transdermal, bone-anchored osseointegration are not well-defined. In contrast to the robust experience diagnosing and managing periprosthetic joint infections in total joint arthroplasty, osseointegration surgery has only recently been adopted at a small number of osseointegration centers in the United States, contributing to the lack of long-term outcomes. Through the pooled experience from these osseointegration centers, we present a consensus statement on the perioperative management, incidence, treatment, and diagnostic workup for infectious complications following transdermal, bone-anchored osseointegration.
View Article and Find Full Text PDFOTA Int
March 2025
Atrium Health-Carolinas Medical Center, Atrium Health Musculoskeletal Institute, Charlotte, NC.
Purpose: Osseointegration-associated infections are a critical barrier to widespread implementation of osseointegrated (OI) prosthetics. To address this challenge, a preclinical animal model must exist of the human model to test potential interventions. In this article, we describe a novel rabbit model of OI implant-related infection that can act as a platform for rapid translation and development of therapeutic approaches to combat these uniquely challenging infections.
View Article and Find Full Text PDFJ Surg Case Rep
March 2025
Department of Orthopedic Surgery, Musculoskeletal Research Center, Chang Gung Memorial Hospital, Linkou Branch, Chang Gung University, Taoyuan, Taiwan.
A psoas abscess is a rare but potentially life-threatening condition that requires timely diagnosis and management. Surgical intervention is essential in patients with percutaneous drainage failure, multiloculated abscesses, or implant-related pathologies. This case series highlights the use of the pararectus approach, originally developed for acetabular fractures, to manage complex retroperitoneal infections.
View Article and Find Full Text PDFMater Today Bio
April 2025
Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 611731, PR China.
The innate immune system's inactivation and microbial biofilm-induced antibiotic resistance are the main causes of implant-associated infections (IAIs), which frequently result in implant surgical failure. Refractory recolonization is the consequence of standard therapies that are unable to consistently suppress escaping planktonic bacteria from biofilm, thereby enabling IAIs to thrive. Here, we specifically designed a macrophage-like biomimetic nanoparticle (F/R@PM) for a biofilm microenvironment (BME), which was fabricated by coating the cell membrane derived from macrophage onto poly (lactic-co-glycolic acid) (PLGA) namoparticles (NPs) loaded with FOT (NO donor) and R837 (TLR7 agonist).
View Article and Find Full Text PDFInt Orthop
March 2025
Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr 11, 97074, Wuerzburg, Germany.
Purpose: To evaluate the impact of implant-associated and radiographic factors on survival rates and revisions of total shoulder arthroplasty (TSA) in patients with primary osteoarthritis (OA).
Methods: This retrospective study included 68 patients who underwent TSA for primary OA at a single institution between 2008 and 2015, with a minimum follow-up of 60 months. Patients with prior shoulder surgeries, perioperative infections, or revisions within 12 months postoperatively were excluded.
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