Browsing by Author "Filippi Nussbaum, Jorge Luis"

Now showing 1 - 7 of 7
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    A New Classification System for Pilon Fractures Based on CT Scan : An Independent Interobserver and Intraobserver Agreement Evaluation
    (2020) Palma Munita, Joaquín Hernán; Villa Massiff, Andrés Alberto; Mery Ponce, Pablo Agustín; Abarca Montano, Mario; Mora, A.; Pena, A.; Urrutia Escobar, Julio Octavio; Filippi Nussbaum, Jorge Luis
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    A Novel Simulation Model and Training Program for Minimally Invasive Surgery of Hallux Valgus
    (Lippincott Williams & Wilkins, 2024) Morales Díaz, Sergio Luis; Lam, Peter; Cerrato, Rebecca; Mococain, Pablo; Ruz Laurent, Cristian Andrés; Filippi Nussbaum, Jorge Luis; Villa Massiff, Andrés Alberto; Varas Cohen, Julian Emanuel
    Background: Minimally invasive surgery (MIS) for hallux valgus (HV) has gained popularity. However, adopting this technique faces the challenges of a pronounced learning curve. This study aimed to address these challenges by developing and validating an innovative simulation model and training program, targeting enhanced proficiency in HV MIS.Methods:A training program and a high-fidelity simulation model for HV MIS were designed based on experts' recommendations. Four foot and ankle surgeons without experience in MIS formed the novice group and took the program that encompassed six-session instructional lessons, hands-on practice on simulated models, and immediate feedback. The program concluded with a cadaveric surgery. Four foot and ankle experienced MIS surgeons formed the expert group and underwent the same procedure with one simulated model. Participants underwent blind assessment, including Objective Structured Assessment of Technical Skills (OSATS), surgical time, and radiograph usage.Results:Expert evaluation of the simulation model indicated high satisfaction with anatomical representation, handling properties, and utility as a training tool. The expert group consistently outperformed novices at the initial assessment across all outcomes, demonstrating OSATS scores of 24 points (range, 23 to 25) versus 15.5 (range, 12 to 17), median surgical time of 22.75 minutes (range, 12 to 27) versus 48.75 minutes (range, 38 to 60), and median radiograph usage of 70 (range, 53 to 102) versus 232.5 (range, 112 to 280).Discussion:Novices exhibited a significant improvement in OSATS scores from the fifth session onward (P = 0.01), reaching the desired performance of 20 points. Performance at the final training with the simulated model did not differ from cadaveric surgery outcomes for all parameters.Conclusion:This study validated a simulation model and training program, allowing nonexperienced HV MIS foot and ankle surgeons to enhance their surgical proficiency and effectively complete a substantial portion of the learning curve at the fifth session, and this performance was successfully transferred to a cadaver model.
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    Arthroscopic treatment of pigmented villonodular synovitis of the ankle : a clinical case report and review
    (2019) Salas González, Soledad; Urrutia Jarpa, Tomás; Filippi Nussbaum, Jorge Luis
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    Xantomatosis cerebrotendínea: Una causa de aumento de volumen bilateral del tendón de Aquiles. Caso clínico
    (2009) Filippi Nussbaum, Jorge Luis; Irarrázaval, Sebastián; Preredo O., Pilar; Mellado T., Patricio
    Cerebrotendinous xanthomatosis is an inherited autosomal recessive disease caused by a mutation in the gene for the sterol 27-hydroxylase enzyme, which determines the accumulation of plasmatic cholestanol in various tissues. The natural history of this disease is characterized by chronic diarrhea beginning in childhood, cataract in youth, tendinous xanthomas in adulthood and later progressive neurological dysfunction manifested as dementia, psychiatric disorders, cerebellar, pyramidal or extrapyramidal signs or seizures. We report a 39 year-old male with a history of diarrhea during childhood and bilateral cataracts requiring surgery at 20 years of age, who evolves later with psychiatric disorders and bilateral increased volume in Achilles tendons. High levels of plasmatic cholestanol and magnetic resonance imaging confirmed the diagnosis of this disease.