Patho-morphology of patellar instability in children and adolescents: A systematic review and meta-analysis.

BACKGROUND: Children and adolescents have the highest incidence of patellar instability among the population. We aimed to identify patho-morphological and epidemiological factors associated with patellar instability, and to identify factors predisposing to recurrence in children and adolescents. METHODS: Published and unpublished literature databases, conference proceedings and the reference lists of included studies were searched to the 14th of March 2024. Studies were eligible if they compared history characteristics, examination features and radiological parameters between patients with and without instability, or evaluated risk factors for instability recurrence. A random-effects meta-analysis was performed. Included studies were appraised using tools respective of study design. RESULTS: The evidence was moderate to low in quality. Forty-five studies (including 9000 patients) were eligible. Tibial tubercle - tibial groove (TT-TG) distance (weighted mean difference [WMD] 5.96 mm, 95% Confidence Interval [CI]: 4.94 to 6.99 mm), sulcus angle (WMD: 13.93˚, 95% CI: 9.1˚ to 18.8˚), and Insall-Salvati index (WMD: 0.2, 95% CI: 0.16 to 0.23) were greater in patients with patellar instability. Risk factors for recurrent dislocation included age less than 18 years (Odds ratio [OR]: 2.56, 95% CI: 1.63 to 4.0), skeletal immaturity (OR: 1.79, 95% CI: 1.21 to 2.64) and presence of trochlear dysplasia (OR: 3.37, 95% CI: 1.85 to 6.15). CONCLUSION: Knowledge of patho-morphological factors associated with patellar instability could help explain its pathophysiological processes, allowing for the design of treatment approaches and the identification of patients at risk.

Self-Report Assessment of Nurses' Risk for Infection After Exposure to Patients With Coronavirus Disease (COVID-19) in the United Arab Emirates.

PURPOSE: Nurses have an increased risk for acquiring COVID-19 infection. This study assessed levels of risk for exposure to COVID-19 among nurses, and determined those at the greatest risk. DESIGN: A cross-sectional design was used to assess risk for exposure to COVID-19 in nurses from five randomly selected governmental hospitals in the United Arab Emirates. Participants completed an online survey (including the World Health Organization survey) to assess their risk for exposure to COVID-19. Descriptive statistics were used to describe classes of risk for exposure, and logistic regression was used to identify factors associated with greater risk. FINDINGS: Of the 552 participants, 284 nurses (51.4%) were classified at high risk for COVID-19 exposure as they did not report adherence to infection control and prevention (ICP) guidelines at all times during healthcare interactions and when performing aerosol procedures, or had accidental exposure to biological fluid and respiratory secretions. Compared with adherence to wearing medical masks, gloves, and hand hygiene practices, adherence to wearing face shields or goggles and disposable gowns and decontaminating high-touch surfaces was less frequent. Shifting to work in critical care units, not having adequate critical care experience, and reporting a need for training in ICP practices were factors that contributed to high-risk exposure (p values for Ex (Bs) = 2.60, 2.16, 1.75, ≤ 0.05, consecutively). CONCLUSIONS: A considerable number of nurses were classified at high risk for COVID-19 exposure. Critical care work experience and adequate evidence-based training in ICP practices related to COVID-19 must be considered to mitigate the risk for exposure to COVID-19 in nurses. CLINICAL RELEVANCE: This study provided a strong message regarding protecting nurses at high risk for exposure to COVID-19. Clinical leaders must stay vigilant to ensure nurses' adherence to ICP practices in the context of COVID-19, and to proactively address any related deficits.