Enhanced Efficiency of Anionic Guerbet-Type Amino Acid Surfactants.

This study investigates the surfactant properties and efficiency of linear and Guerbet-type amino acid surfactants. Utilizing a Wilhelmy plate method, we assessed the colloidal efficiency of these surfactants, with the lowest observed critical micelle concentration at 0.046 mmol L, significantly reducing surface tension to as low as 25.

What Is the Most Optimal Bearing Surface for Minimizing Instability After Revision Total Hip Arthroplasty?

Based on the results of our meta-analysis, dual mobility implants appear to have the most efficacy in preventing instability following revision total hip arthroplasty. Notwithstanding, given the relatively small sample sizes of the included studies, in conjunction with heterogeneity in study design, it is important to recognize that further large randomized controlled trials are necessary to determine the optimal bearing surface to reduce the risk of instability after revision total hip arthroplasty.

Health equity profile of knee replacement patients in the South African public sector: A descriptive study.

Background: Knee replacement surgery can significantly improve the quality of life of patients with severe knee osteoarthritis. Equitable access to knee replacement surgery is important to ensure that everyone, regardless of their socioeconomic status or geographical location, have fair and timely access.

Objectives: The aim of our study was to (1) describe the health equity profile and quality of life of patients awaiting knee replacement at a single academic hospital in South Africa and to (2) describe the association between these health equity factors and the waiting time.

Increased prevalence of valgus constitutional alignment subtypes in a South African arthritic population group using the coronal plane alignment of the knee (CPAK) classification.

Background: Knee alignment philosophies and patient specific models to improve patient reported outcomes are gaining increasing attention. The coronal plane alignment of the knee (CPAK) classification describes nine knee phenotypes and then proposes surgical alignment strategies to achieve constitutional alignment. The CPAK classification has been validated in Australian, European, Asian and North American population groups.

Mag-Net: Rapid enrichment of membrane-bound particles enables high coverage quantitative analysis of the plasma proteome.

Membrane-bound particles in plasma are composed of exosomes, microvesicles, and apoptotic bodies and represent ~1-2% of the total protein composition. Proteomic interrogation of this subset of plasma proteins augments the representation of tissue-specific proteins, representing a "liquid biopsy," while enabling the detection of proteins that would otherwise be beyond the dynamic range of liquid chromatography-tandem mass spectrometry of unfractionated plasma. We have developed an enrichment strategy (Mag-Net) using hyper-porous strong-anion exchange magnetic microparticles to sieve membrane-bound particles from plasma.

Morality, self-control, age, type of offence and sentence length as predictors of psychopathy amongst female incarcerated offenders in South Africa.

There has been an increase in female incarcerated offenders nationally and internationally. Despite this trend, literature and research on female offenders remain limited compared to their male counterparts. Evidence of the relationship between certain personality disorders and offending behaviour has led numerous countries to prioritise identifying and assessing personality disorders among the offender population.

The impact of virtual reality on the psychological well-being of hospitalised patients: A critical review.

Background And Objectives: Improving hospitalised patients' psychological well-being (PWB) is relevant to their recovery and overall quality of life. Virtual Reality (VR) holds the potential to emerge as a novel tool for increasing the PWB of hospitalised patients. This study critically reviewed existing research concerning the use and impact of VR on the PWB of hospitalised patients with serious illnesses.

Twelve tips for designing and implementing an academic coaching program.

Coaching has become increasingly popular as a mechanism to support learning across the health professions education (HPE) continuum. While there is a growing body of literature in this area, there is minimal guidance related to the design and implementation of academic coaching in health professional courses. This paper seeks to contribute to this literature by presenting guidance for academic developers who are considering introducing academic coaching into a health professional course.

The effect of a post-anaesthesia high-care unit (PAHCU) admission on mobilization, length of stay and in-hospital mortality post-surgery in low energy neck of femur fracture patients.

Purpose/aim: With an ageing population and an increase in fragility fractures of the hip (FFH), the role of an anaesthetist is evolving to include more peri-operative care. A post-anaesthesia high-care unit (PAHCU) should enhance care in post-operative patients. To our knowledge, there are no studies that have investigated the effect of a PAHCU admission on post-operative outcomes after FFH.

Development and testing of a transcatheter heart valve with reduced calcification potential.

Introduction: Patients from developing countries who require heart valve surgery are younger and have less access to open heart surgery than those from developed countries. Transcatheter heart valves (THVs) may be an alternative but are currently unsuitable for young patients because of their inadequate durability. We developed and tested a THV utilizing two new types of decellularized bovine pericardial leaflets in an ovine model.

Living through a pandemic: depression and anxiety experienced by youth living with HIV in South Africa.

Youth living with HIV (YLHIV) face significant psychosocial challenges and are at increasedrisk of developing depression and anxiety. This study aims to invesBgate symptoms ofdepression, anxiety and associaBons with psychosocial factors in YLHIV during the first andthird waves of the COVID-19 pandemic. This longitudinal study enrolled 135 YLHIV (ages 12-21) in Cape Town, South Africa.

Protocol for high-throughput semi-automated label-free- or TMT-based phosphoproteome profiling.

Tandem mass tags data-dependent acquisition (TMT-DDA) as well as data-independent acquisition-based label-free quantification (LFQ-DIA) have become the leading workflows to achieve deep proteome and phosphoproteome profiles. We present a modular pipeline for TMT-DDA and LFQ-DIA that integrates steps to perform scalable phosphoproteome profiling, including protein lysate extraction, clean-up, digestion, phosphopeptide enrichment, and TMT-labeling. We also detail peptide and/or phosphopeptide fractionation and pre-mass spectrometry desalting and provide researchers guidance on choosing the best workflow based on sample number and input.

Digital TKA Alignment Training with a New Digital Simulation Tool (Knee-CAT) Improves Process Quality, Efficiency, and Confidence.

Individual alignment techniques have been introduced to restore patients' unique anatomical variations during total knee arthroplasty. The transition from conventional mechanical alignment to individualised approaches, with the assistance of computer and/or robotic technologies, is challenging. The objective of this study was to develop a digital training platform with real patient data to educate and simulate various modern alignment philosophies.

Second victim experiences of healthcare providers after adverse events: A cross-sectional study.

Background: Adverse events in healthcare are inevitable as most treatments and investigations have the potential to cause harm. Healthcare providers often witness or are involved in adverse events, putting them at risk of becoming second victims, which may further impact patient safety.

Aim: The researchers report on the physical and psychological symptoms experienced by healthcare providers following adverse events during patient care as well as their perceptions of the quality of support received and the desired forms of support following adverse events.

Mortality Rates in Femoral Neck Fractures Treated With Arthroplasty in South Africa.

Objectives: To investigate the mortality rate for neck of femur fractures treated with arthroplasty at a tertiary level unit in South Africa and to evaluate the effect of known risk factors for mortality in neck of femur fractures treated with arthroplasty in the South African context.

Design: Retrospective cohort study. The main outcome was to determine mortality rates during in hospital stay, at 3 months, 6 months 1 year post surgery.

Professional quality of life of nurses in critical care units: Influence of demographic characteristics.

Background: Professional quality of life, measured as compassion satisfaction, is a prerequisite for nurses working in intensive care units where patients rely on their care. Nurses who experience compassion satisfaction, or good professional quality of life, engage enthusiastically with all work activities and render quality patient care. In contrast, compassion fatigue eventually leads to disengagement from work activities and unsatisfactory patient outcomes.

Global profile of individuals undergoing total knee replacement through the PROGRESS-PLUS equity lens: Protocol for a systematic review.

Background: Osteoarthritis (OA) is a heterogenous degenerative disorder often causing destructive joint changes with severe pain and functional disability. Modifiable and non-modifiable risk factors, social context and psychological factors influence the development and progression of the disease. Total knee replacement (TKR) aims at reducing pain and improving function and is more successful with pre-operative and post-operative rehabilitation.

Proximal femur anatomy-implant geometry discrepancies.

Objectives: Due to ongoing concern about femur anatomy-implant mismatches, this cross-sectional study aimed to create a geometric femur profile and used it to identify and quantify possible mismatches between femur anatomy and cephalomedullary nail dimensions. The work further aimed to assess whether patient demographics affect anatomy-implant coherence.

Methods: One hundred skeletally mature complete femur computer tomography (CT) scans were collected and exported to software enabling landmark placement and measures with multiplanar reconstruction techniques.

Access to care for low trauma hip fractures in South Africa.

Rationale: Early surgery is recommended for hip fractures.

Main Result: In this study only one-third of subjects with hip fractures were admitted within 24 h of the fracture, and surgery was delayed beyond 48 h in the majority.

Significance: These findings highlight the need to improve access to care for hip fracture subjects.

Effectiveness of a large-scale, sustained and comprehensive community health worker program in improving population health: the experience of an urban health district in South Africa.

Introduction: South Africa is an upper middle-income country with wide wealth inequality. It faces a quadruple burden of disease and poor health outcomes, with access to appropriate and adequate health care a challenge for millions of South Africans. The introduction of large-scale, comprehensive community health worker (CHW) programs in the country, within the context of implementing universal health coverage, was anticipated to improve population health outcomes.

FRAX-based fracture probabilities in South Africa.

Unlabelled: The hip fracture rates in South Africa were used to create ethnic-specific FRAX® models to facilitate fracture risk assessment.

Introduction: The aim of this study was to develop FRAX models to compute the 10-year probability of hip fracture and major osteoporotic fracture and assess their potential clinical application.

Methods: Age- and sex-specific incidence of hip fracture and national mortality rates were incorporated into a FRAX model for the White, Black African, Coloured and Indian population of South Africa.

Prevalence of Sarcopenia in Older South African Patients Following Surgery for Fragility Fractures of the Hip.

Introduction: Geriatric patients with a fragility fracture of the hip (FFH) are especially prone to sarcopenia with poor functional outcomes and quality of life. We assessed the prevalence of sarcopenia in older South African patients with FFH. Risk factors for sarcopenia were also investigated.