Introduction: currently there are very few published studies concerning the effect of implantations with stem cells in post-surgical aseptic pseudoarthrosis. In addition, the traditional methods of adjuvant treatment in order to improve efficacy (anabolic steroids and bisphosphonates) represent high risks, rejection and even treatment abandonment by patients. Objective: hierarchalising the most influential variables for treatment with stem cells in post-surgical aseptic pseudoarthrosis in the Orthopedics and Traumatology service of the Hospital General Docente “Dr. Agostinho Neto”, Guantánamo, from January 2022 to January 2023, with the application of the TOPSIS fuzzy method. Method: a descriptive study was applied, with the application of Fuzzy Analytical Hierarchy process methods (Fuzzy AHP) and the Technique for Order of Preference by Similarity to Ideal Solution (fuzzy TOPSIS), with information gathered from the Orthopedics and Traumatology department of the aforementioned hospital. The universe of study consisted of 50 patients. The study sample included n?44. Results: it was possible to obtain the main variables involved in the stem cell treatment for pseudarthrosis, variables with great contribution in the success of implementation of such treatment, which were as follow: fracture trace, cause of pseudarthrosis, type of therapy used, time of bone consolidation and degree in bone consolidation. Conclusions: the hierarchization of the variables obtained will constitute a guide where the Orthopedics and Traumatology services of the Hospital General Docente “Dr. Agostinho Neto”, in Guantánamo municipality, will be able to influence in the efficacy of stem cell treatment for pseudarthrosis.

Introduction: administrative personnel with a vision on Science, Technology and Society can influence universities functions through a social approach, the training, research and, extension process. Objective: to diagnose the level of knowledge on the Science, Technology and Society perspective of the administrative teaching personnel of the Universidad de Ciencias Médicas de Ciego de Avila, Cuba. Method: a descriptive observational study was carried out in 2022 at the aforementioned university, where the population study consisted of 52 administrative personnel in teaching functions (N=52). A sample of 34 was selected by simple random sampling (n=34). A validated questionnaire was applied as an empirical method for data collection. Measurement scales were established for quantitative variables. Results: the diagnosis revealed a low level of knowledge on Science, Technology and Innovation definitions (85%, 69% and 44%, respectively). Most of the teaching and administrative personnel (53%) did not recognize the models that revealed the relationships between Science, Technology and Society and have in consideration that the University of Medicine is not positioned as a relevant actor in the local development. Forty-one percent reported that the Science, Technology and Society perspective almost always appears in the normative documents of the Ministerios de Educación Superior y de Salud Pública. Conclusions: there is evidence of insufficient knowledge on Science, Technology and Society and its use in the process management at universities. It is recommended to design related improvement actions on the subject.

Introduction: currently, there is a lack of information in the national literature concerning joint loose bodies in the knee joint. These occur as a consequence of traumatic, degenerative, inflammatory and ischemic injuries. Objective: to update knowledge on the most general aspects concerning joint loose bodies in the knee and the use of the arthroscopy procedure on its treatment. Method: search and analysis of the information was performed on 59 days (January 1 to February 28, 2023) and the following keywords were used: foreing body AND knee, articular loose body AND knee, free body AND knee, locking knee arthroscopy AND locking. Based on the information obtained, a bibliographic review was made of a total of 211 articles published in the PubMed, Hinari, SciELO and Medline databases. The EndNote search manager and reference manager was used. Of the total of articles, 33 contributions selected for the review were used, 32 were published the last five years. Development: it was refered in the study on the positive diagnosis based on the history, clinical picture and imaging. In relation to the differential diagnosis of this entity, special emphasis is made up with all the conditions that produce joint blockage. Specifically, meniscal lesions are reviewed, as well as the most commonly used classifications according to size, origin, quantity and mobility. In relation to the arthroscopic treatment, the following four stages were described: identification, trapping, extraction and revision. Final considerations: the arthroscopic approach, due to its multiple advantages, represents the most effective surgical modality for the diagnosis and treatment of patients with joint loose bodies in the knee.

Introduction: commercial plastic products has transformed the modern era in such a way that current life without plastic would not be possible, so at the same time with this development, plastics contamination is present, becoming one of the most urgent environmental problems nowadays. Objective: to gather available information published on the last five years concerning the microplastics as a source of environmental contamination in Ecuador and in order to reinforce the local interest on plastic pollution. Development: an unstructured review of the literature was performed. Databases used, PubMed and Google Scholar. The inclusion criteria used were as follow: articles in English and Spanish published on the last 5 years, no other language; study selections have been done by convenience. It was chronologically organized and analyzed the evidence published in PubMed and Google Scholar on the last five years concerning the microplastics behavior in Ecuador. Final considerations: the information collected chronologically shows the advancing pollution caused by microplastics both globally and in Ecuador, in addition, the presence of microplastics in oceans, fresh water, terrestrial ecosystems, air, foods and even in the human body is evident. Therefore, contamination caused by microplastics is a topic of a great importance today, which requires a speedy control action.

Introduction: legal and criminal liability of the health professionals, regardless its antiquity, at present has becoming more and more theoretical and practical relevance in which an excessive judicialization of medical activity is revealed as a mechanism for the protection of patient rights. Objective: systematization of the different theoretical positions that are currently identified around the judicialization process of medical activity and the likely causes that stimulate it. Method: a documentary study was carried out through an exhaustive bibliographic review in bibliographic search engines such as Scopus, SciELO, Google Scholar and PubMed. The argumentative and exploratory research was conducted on March 16, 2023 and of the 30 articles found concerning medical malpractice, only 11 were chosen for the study with strict selection criteria. Development: the theoretical positions on the judicialization of medical activity and the causes that stimulate it were systematized; in addition, the correct interpretation of the lex artis was presented as a mechanism of normative heterointegration of the duty of care by the medical personnel, in order to avoid excesses in the application of the criminal law in this area of professional activity. Final considerations: a much greater intervention of criminal law in the practice of medicine is not the most efficient policy to protect the life and integrity of the patient in the face up to the medical malpractice.

Introduction: perioperative hypertension represents one of the leading alterations detected performing endoscopic cholecystectomy. It is presumed that atenolol has a protective effect able to reduce this morbid condition, likely due to its beta-blocking action. Objective: to assess the efficacy of atenolol on preventing perioperative hypertension performing laparoscopic cholecystectomy in the surgical unit of the Hospital Clínico Quirúrgico "Lucía Íñiguez Landín" of Holguín. Method: an observational, analytical, longitudinal and prospective cohort study was conducted with two study groups at the same time, experimental group and control group, from January to December, 2018. A total of 697 patients (N=697) evaluated in the preoperative consultation were involved in the study, the sample included 183 hypertensive patients (n=183) who underwent endoscopic surgery for gallbladder lithiasis, of whom 95 were randomized to the atenolol treatment group and 88 to the control group. Patients in the treatment group were administered atenolol at 25 mg daily for 15 days before surgery. Leading variables used were systolic, diastolic and mean arterial pressures, and specific indicators were used to evaluate treatment effectiveness. Results: preoperative arterial pressures decreased significantly with the use of atenolol in the treatment group. Perioperative hypertension was more frequent in the control group. Atenolol is a selective beta 1 receptor blocker, who causes a hypertensive effects in the central level, depressing the bulbar vasomotor center. Conclusion: the results of this investigation show that the use of atenolol in treatment was an effective alternative, thus effectiveness reduce perioperative hypertension rate.