Connecting Underrepresented Medical Students to Resources and Role Models in Orthopaedic Surgery: A Virtual Diversity, Equity, Inclusion, and Accessibility Summit.

Introduction: Limited access to resources and stereotypes about orthopaedic surgeons may contribute to the low percentage of women and people of underrepresented in medicine (URiM) backgrounds in orthopaedic surgery. Several organizations have created resources to address these barriers, but medical students are unlikely to be exposed to the initiatives through traditional curricula. The purpose of this study was to (1) evaluate the ability of a 1-day virtual Diversity, Equity, Inclusion, and Accessibility (DEIA) summit to effectively reach URiM medical students, (2) increase medical students' knowledge of DEIA resources, and (3) augment the perception of diverse backgrounds in orthopaedic surgery.

Machine-learning diagnostics of breast cancer using piRNA biomarkers.

Background And Objectives: Prior studies have shown that small non-coding RNAs (sncRNAs) are associated with cancer occurrence or development. Recently, a newly discovered class of small ncRNAs known as PIWI-interacting RNAs (piRNAs) have been found to play a vital role in physiological processes and cancer initiation. This study aims to utilize piRNAs as innovative, noninvasive diagnostic biomarkers for breast cancer.

Damage sensing through TLR9 regulates inflammatory and antiviral responses during influenza infection.

Host response aimed at eliminating the infecting pathogen, as well as the pathogen itself, can cause tissue injury. Tissue injury leads to the release of a myriad of cellular components including mitochondrial DNA (mtDNA), which the host senses through pattern recognition receptors. How the sensing of tissue injury by the host shapes the anti-pathogen response remains poorly understood.

Data-Driven Estimated Glomerular Filtration Rate Strata Predict 90-Day Major Complications Following Total Knee Arthroplasty in Patients With Chronic Kidney Disease.

Introduction: Lower estimated glomerular filtration rate (eGFR) in patients who have chronic kidney disease (CKD) is associated with increased risk of complications following total knee arthroplasty (TKA). However, there is a lack of literature that identifies eGFR levels those are associated with notable differences in risk of these complications. The purpose of this study was to create eGFR strata for CKD patients that are associated with varying risks of 90-day major complications following TKA.

Trends in screening and treatment of osteoporosis after periprosthetic fractures from 2010 to 2020.

Unlabelled: Osteoporosis is often underrecognized and undertreated following periprosthetic fractures (PPF). Our study found that between 2010 and 2020, there has been no significant change in the rates of osteoporosis screening or treatment within 1 year following PPF. Orthopedic surgeons can play an integral role in helping to curtail the osteoporosis epidemic.

Hormone Replacement Therapy in Postmenopausal Women Undergoing Total Hip Arthroplasty is Associated With Reduced 10-Year Periprosthetic Femoral Fracture Rate.

Background: In postmenopausal women who are estrogen deficient, hormone replacement therapy (HRT) has been shown to improve fragility fracture risk. However, few studies have examined the relationship between HRT and periprosthetic fracture (PPF) risk after total hip arthroplasty (THA). The purpose of this study was to determine the impact of HRT use on 10-year PPF risk following THA.

Identifying 10-year cumulative incidence and risk of revision following total hip arthroplasty in patients with and without a diagnosis of human immunodeficiency virus.

Introduction: Prior studies have shown human immunodeficiency virus (HIV) may be a risk factor for early revision following THA, but little data exists looking at long-term implant survivorship. Therefore, the purpose of this study was to compare the 10-year cumulative incidence rate for revision following THA in patients with and without HIV.

Methods: A retrospective cohort analysis of patients with HIV undergoing elective THA was conducted using a national database.

Higher modified frailty index score is associated with 30-day postoperative complications following revision total shoulder arthroplasty.

Background: Previous studies have shown that increased 5-item modified frailty index (mFI-5) scores are associated with poor surgical outcomes. This study seeks to determine whether the comorbidities comprising the mFI-5 were correlated with poor outcomes following revision total shoulder arthroplasty (TSA).

Methods: Utilizing the National Surgical Quality Improvement Program database, a mFI-5 score was calculated for all patients 50 years and older who underwent revision TSA between 2013 and 2019.

Increasing Utilization of Extended Oral Antibiotic Prophylaxis Following Total Knee Arthroplasty From 2010 to 2022.

Background: Extended oral antibiotic (EOA) prophylaxis has been shown to reduce rates of periprosthetic joint infection in high-risk patients following total knee arthroplasty (TKA). Although national societies' recommendations against their use and clinical efficacy remain controversial, the increase in the literature surrounding EOA prophylaxis suggests a potential change in practice patterns that may warrant the creation of national guidelines. The purpose of this study was to investigate the trends in the utilization of EOA prophylaxis following TKA from 2010 to 2022.

Reassessing Glycemic Control: A Novel Method for 90-Day Major Complication Stratification Based on Hemoglobin A1c and Same-Day Glucose Levels for Patients Undergoing Total Knee Arthroplasty.

Background: Glucose levels obtained on the day of surgery may be predictive of complications following total knee arthroplasty (TKA). Established glucose thresholds for TKA are either nonspecific or have low predictive power. Therefore, the purpose of this study was to create data-driven hemoglobin A1c (HbA1c) and same-day glucose thresholds associated with varying risks of 90-day major and surgical site infection (SSI) complications following TKA.

The transcriptome of CD14 CD163 HLA-DR monocytes predicts mortality in Idiopathic Pulmonary Fibrosis.

Rationale: The association between immune-cell-specific transcriptomic profiles and Idiopathic Pulmonary Fibrosis (IPF) mortality is unknown.

Objectives: To determine immune-cell-specific transcriptomic profiles associated with IPF mortality.

Methods: We profiled peripheral blood mononuclear cells (PBMC) in 18 participants [University of South Florida: IPF, COVID-19, post-COVID-19 Interstitial Lung Disease (Post-COVID-19 ILD), controls] by single-cell RNA sequencing (scRNA-seq) and identified 16 immune-cell-specific transcriptomic profiles.

Prior fragility fractures are associated with a higher risk of 8-year complications following total shoulder arthroplasty.

Unlabelled: Patients who sustain fragility fractures prior to total shoulder arthroplasty have significantly higher risk for bone health-related complications within 8 years of procedure. Identification of these high-risk patients with an emphasis on preoperative, intraoperative, and postoperative bone health optimization may help minimize these preventable complications.

Purpose: As the population ages, more patients with osteoporosis are undergoing total shoulder arthroplasty (TSA), including those who have sustained a prior fragility fracture.

Human Male Body Size Predicts Increased Knockout Power, Which Is Accurately Tracked by Conspecific Judgments of Male Dominance.

Humans have undergone a long evolutionary history of violent agonistic exchanges, which would have placed selective pressures on greater body size and the psychophysical systems that detect them. The present work showed that greater body size in humans predicted increased knockout power during combative contests (Study 1a-1b: total N = 5,866; Study 2: N = 44 openweight fights). In agonistic exchanges reflective of ancestral size asymmetries, heavier combatants were 200% more likely to win against their lighter counterparts because they were 200% more likely to knock them out (Study 2).

Trends From 2010 to 2019 in Opioid and Nonopioid Pain Management After Total Knee Arthroplasty.

Introduction: As the opioid epidemic enters its third decade, we reflect on how it has affected clinical practice within the orthopaedic community. Recent studies show prolonged opioid use after total knee arthroplasty (TKA) is associated with worse overall health outcomes. This study aims to elucidate trends in pain management after TKA over the past decade.

Does Point-of-Care Ultrasound Affect Fluid Resuscitation Volume in Patients with Septic Shock: A Retrospective Review.

Background: Fixed, large volume resuscitation with intravenous fluids (IVFs) in septic shock can cause inadvertent hypervolemia, increased medical interventions, and death when unguided by point-of-care ultrasound (POCUS). The primary study objective was to evaluate whether total IVF volume differs for emergency department (ED) septic shock patients receiving POCUS versus no POCUS.

Methods: We conducted a retrospective observational cohort study from 7/1/2018 to 8/31/2021 of atraumatic adult ED patients with septic shock.

Single-Cell Profiling Reveals Immune Aberrations in Progressive Idiopathic Pulmonary Fibrosis.

Changes in peripheral blood cell populations have been observed, but not detailed, at single-cell resolution in idiopathic pulmonary fibrosis (IPF). We sought to provide an atlas of the changes in the peripheral immune system in stable and progressive IPF. Peripheral blood mononuclear cells (PBMCs) from patients with IPF and control subjects were profiled using 10× chromium 5' single-cell RNA sequencing.

Patients Who Have Prior Solid Organ Transplants Have Increased Risk of 10-Year Periprosthetic Joint Infection Revision Following Primary Total Knee Arthroplasty: A Propensity-Matched Analysis.

Background: Total knee arthroplasty (TKA) for solid organ transplant (SOT) patients is becoming more prominent as life expectancy in this population increases. However, data on long-term (10 year) implant survivorship in this cohort are sparse. The purpose of this study was to compare 90-day, 2-year, 5-year, and 10-year implant survivability following primary TKA in patients who did and did not have prior SOT.

The cost-effectiveness of osteoporosis medications for preventing periprosthetic fractures following femoral neck fracture indicated hip arthroplasty: a break-even analysis.

Unlabelled: Osteoporosis treatment following arthroplasty for femoral neck fracture (FNF) is associated with lower rates of periprosthetic fracture (PPF). Our study evaluated the economic viability of treatment in patients following arthroplasty and demonstrates that treatment with oral bisphosphonates can be cost-effective in preventing PPF.

Introduction: Osteoporosis treatment following arthroplasty for femoral neck fracture (FNF) is associated with lower rates of periprosthetic fracture (PPF).

AIDS but not asymptomatic HIV is associated with lower 2-10-year implant survivorship following total knee arthroplasty.

Introduction: Prior studies have demonstrated HIV does not increase the risk of 2-year complications following TKA; however, the literature is sparse regarding the impact of HIV and AIDS on long-term implant survivorship. The purpose of this study was to compare the 10-year cumulative incidence and risk of revision TKA in patients with and without asymptomatic HIV, and with and without AIDS.

Methods: Patients with HIV who underwent elective TKA were identified using a national database and divided into subgroups of asymptomatic HIV (AHIV) and acquired immunodeficiency syndrome (AIDS).

Damage sensing through TLR9 Regulates Inflammatory and Antiviral Responses During Influenza Infection.

Host response aimed at eliminating the infecting pathogen, as well as the pathogen itself, can cause tissue injury. Tissue injury leads to the release of a myriad of cellular components including mitochondrial DNA, which the host senses through pattern recognition receptors. How the sensing of tissue injury by the host shapes the anti-pathogen response remains poorly understood.

The cumulative incidence and risk factors associated with 5-year conversion to knee arthroplasty following primary meniscus repair or primary meniscectomy.

Background: This study aimed to observe the 5-year knee arthroplasty conversion incidence rate and associated risk factors in patients who underwent meniscus procedures.

Methods: Using a national database, we analyzed patients who had undergone primary meniscus repair or meniscectomy without prior knee surgeries. The cumulative knee arthroplasty conversion incidence was determined via Kaplan Meier analysis.