The study is focused on multifunctional performance of carbon nanotubes (CNT) and Graphene nanoplatelets (GNP) reinforced PEEK composites enabled via fused filament fabrication (FFF) additive manufacturing (AM) utilizing in-house nanoengineered filaments. Thermo-physical, mechanical wear characteristics electro-conductive nanocomposites are reported. coefficient thermal expansion (CTE) found to decrease by 26% 18% with the incorporation 5 wt% GNP 3 CNT into polymer, respectively. in CTE...

Anti-bacterial scaffolds made of copper, bronze and silver particles filled PLA nanocomposites were realized via fused filament fabrication (FFF), additive manufacturing. The thermal, mechanical biological characteristics including bioactivity bactericidal properties the evaluated. incorporation into neat increases elastic modulus up to 10% 27% for samples printed in 0° 90° configurations respectively. stiffness increases, 103% nanocomposite scaffolds. surface was treated with acetic acid...

Identifying the design of a failed implant is key step in preoperative planning revision total joint arthroplasty. Manual identification from radiographic images time-consuming and prone to error. Failure identify preoperatively can lead increased operating room time, more complex surgery, blood loss, bone recovery overall healthcare costs. In this study, we present novel, fully automatic interpretable approach hip replacement (THR) implants plain radiographs using deep convolutional neural...

Abstract Background Postoperative complications continue to constitute a major issue for both the healthcare system and individual patient are associated with inferior outcomes higher costs. The objective of this study was evaluate trends postoperative complication rates over 7-year period. Methods NSQIP datasets from 2012 2018 were used assess 30-day incidence including mortality rate following surgical procedures within ten subspecialties. Multivariable logistic regression associate...

BackgroundEarly detection of postoperative complications, including organ failure, is pivotal in the initiation targeted treatment strategies aimed at attenuating damage. In an era increasing health-care costs and limited financial resources, identifying surgical patients a high risk complications providing personalised precision medicine-based provides obvious pathway for reducing patient morbidity mortality. We to leverage deep learning create, through training on structured electronic...

We present carbon nanotube (CNT)-reinforced polypropylene random copolymer (PPR) nanocomposites for the additive manufacturing of self-sensing piezoresistive materials via fused filament fabrication. The PPR/CNT feedstock filaments were synthesized through high shear-induced melt blending with controlled CNT loading up to 8 wt % enable three-dimensional (3D) printing nanoengineered composites. CNTs found enhance crystallinity (up 6%) in PPR-printed parts, contributing overall...

This study is focused on carbon nanostructures (CNS), including both nanotubes (CNTs) and graphene nanoplatelets (GNPs), reinforcement of medical‐grade polyetheretherketone (PEEK), in vitro bioactivity for biomedical structural applications. CNS/PEEK scaffolds bulk specimens, realized via fused filament fabrication (FFF) additive manufacturing, are assessed primarily the low‐strain linear‐elastic regime. 3D printed PEEK nanocomposites found to have enhanced mechanical properties all cases...

Trochlear dysplasia is a known risk factor for patellar instability. Multiple radiographic measurements exist to assess trochlear morphology, but the optimal measurement technique and threshold instability are unknown.To describe thresholds on magnetic resonance imaging (MRI) that can identify knees with in male female patients.Cohort study (diagnosis); Level of evidence, 3.Knee MRI scans patients were compared those age- sex-matched controls. Measurements sulcus angle, lateral inclination...

Abstract Knowledge of the morphology and kinematics male female knees is important for understanding gender‐related dimorphism in knee pathology improvement related surgical treatments. Twelve 12 subjects with healthy were recruited, each subject performed a single leg lunge while images recorded by two fluoroscopes. Tibiofemoral joint motion was then reproduced using bony models matched to fluoroscopic images. Femoral trochlear groove orientation also measured knee. While many parameters...

Total knee arthroplasty (TKA) is a widely accepted surgical procedure for the treatment of patients with end-stage osteoarthritis (OA). However, function not always fully recovered after TKA. We used dual fluoroscopic imaging system to evaluate in vivo kinematics medial compartment OA before and posterior cruciate ligament-retaining TKA (PCR-TKA) during weight-bearing flexion, compared results those normal knees. The knees displayed similar internal/external tibial rotation had less overall...

Biomaterials associated infection (BAI) has been identified as one of the leading causes failure bioimplants. A failed implant requires revision surgery, which is about 20 times costlier and more painful than primary surgery. Infection starts from initial attachment bacteria onto surface biomaterials followed by colonization biofilm formation. Once a developed become resistant toward antibiotics. On account microbial cell development, their metabolic activity viability are strongly affected...

Abstract Herein, we report the physicochemical, thermal, mechanical and biological characteristics, including bioactivity, biodegradation cytocompatibility of additive manufacturing-enabled novel nanocomposite scaffolds. The scaffolds comprise a blend polylactic acid (PLA) poly-ε-caprolactone (PCL) reinforced with halloysite nanotubes (HNTs). nanoengineered filaments were developed by melt blending, manufactured fused filament fabrication. Uniform dispersion HNTs in PLA/PCL is revealed via...