bluuebunny/crossref_metadata_2025 huggingface dataset:
The Orientation of Dylan Woodger
Authors: Faugas Woodger
Published: June 2022

The novel,
The Orientation of Dylan Woodger, written by Boston-based author and activist C. E. Obele, underwent publication during the spring of 2022. An alumnus of Hamilton College, a liberal arts college in Upstate New York, Obele crafted the book out of various fictionalizations of his experiences as a student at Hamilton, where he and one of his close friends, i.e., the novel’s eponym, first met. Drawing on ideas expounded upon by French philosopher Jean-François Lyotard, particularly those limned in
The Post-modern Condition, this book review sheds light on some of the experiences shaping Obele’s conceptualization of his debut novel, through furnishing an intellectually-centered account shaped by campus life. Thereafter, the article covers key themes explored in Obele’s book, accentuating select strengths and weaknesses, as construed from a narratological perspective, before underscoring reasons for why the book could be significant.
Sustainability Analysis Of Bioethanol Production From Grain And Tuber Starchy Feedstocks
Authors: Sanni Abdulkadeem , Adegboyega Olawale , Yahya Sani
Published: June 2022

Comparative sustainability study of bioethanol production from selected starchy feedstocks that are abundantly available was carried in this work. This is to ensure safe, reliable, and efficient production and consumption of fuel-grade bioethanol. The analysis utilized the established economic minimum bioethanol plant capacity of 158 000 m
3/annum. The processing flowsheet model utilized was the same for each feedstock. Economic, environmental and energy perspectives of the sustainability study were investigated. The economic and environmental indicators and indices were assessed using SuperPro® Designer and OpenLCA sustainability software packages respectively; exergy and lost work were estimated manually with Microsoft Excel (Microsoft Suite®). The economic sustainability indicator showed that the plants using cassava and sweet potato had the highest return on investment (ROI) of 64.41 and 41.96% respectively. The least profitable plant was based on sorghum recording ROI value of 34.11%. The results of the environmental assessment conducted on the four selected feedstocks showed that the processes utilising cassava, corn, sweet potato, and sorghum recorded encouraging global warming potential (GWP) of 0.2452, 0.2067, 2.5261 and 0.2099 kg CO
2 equivalent respectively. Cassava and corn emerged as the two most economically viable feedstocks when economic parameters were adjusted to include pollutants emission/discharge costs but with slight decrease in profitability indices. The lost work analyses showed that distillation columns were the least energy efficient units in the four bioethanol production routes assessed, recording loss work of about 61, 68, 34 and 49 MW for cassava, sweet potato, corn and sorghum processing plants respectively. However, the net energy balance (NEB) and energy renewability results of the four production routes showed that the processes utilizing the four selected starchy biomass feedstocks are more sustainable compared to fossil fuel.
COMPARATIVE SUSTAINABILITY STUDY OF FUEL-GRADE BIOETHANOL

PRODUCTION FROM CORN COB AND RICE STRAW
Authors: Sanni Abdulkadeem , Adegboyega Olawale , Yahya Sani
Published: June 2022

Comparative sustainability study of corn cob and rice straw as feedstocks for fuel-grade bioethanol production was conducted using superPro® Designer and OpenLCA sustainability software. The model comprises the different bioethanol production technology pathways: pretreatment (steam explosion), hydrolysis, fermentation and purification. The paper is targeted towards addressing the economic, environmental and energy challenges faced with the use of fossil fuel. The paper ensures the production and consumption of corn cob and rice straw derived fuel-grade bioethanol with the established economic minimum bioethanol plant capacity of 75 000 m
3/annum. Based on the estimated economic indices, the plant utilising corn cob had a higher return on investment (ROI) of 75.98% compared to that using rice straw which recorded 49.86%. This ROI values fell relatively close (recording 65.46 and 64.83% for corn cob and rice straw respectively) after adjusting the annual operating costs to incorporate pollutants emission and discharge costs. The environmental assessment conducted on the two feedstocks using life cycle assessment approach in OpenLCA sustainability software showed that the process utilising rice straw posed lesser environmental burden with generated carbon credit of $9 770 177 and better net energy balance (NEB) of 4.3. The lost work analyses conducted showed that distillation columns were the least energy efficient units in both processing plants recording about 61% of the net lost work in the two process plants. However, based on the trade-offs among the three sustainability indicators assessed (economic, environmental and energy indices), corn cob is a more sustainable feedstock for fuel-grade bioethanol production than rice straw.
Face Mask Wearing Detection Using Support Vector Machine (SVM)
Authors: Muhammad Nur Yasir Utomo  , Fajrin Violita
Published: June 2022

As an effort to prevent the spread of the Covid-19, various countries have implemented health protocol policies such as work-from-home, social distancing, and face mask-wearing in public places. However, monitoring compliance with the policy is still difficult, especially for the face mask policy. It is still managed by humans and is costly. Thus, this research proposes a face mask-wearing detection using a soft-margin Support Vector Machine (SVM). There are three main stages: feature selection and preprocessing, model training, and evaluation. During the first stage, the dataset of 3833 images (1915 images with face masks and 1918 images without face masks) was prepared to be used in the training stage. The training stage was conducted using SVM added with the soft-margin objective to overcome images that could not be separated linearly. At the final stage, evaluation was conducted using a confusion matrix with 10 folds cross-validation. Based on the experiments, the proposed method shows a performance accuracy of 91.7%, a precision of 90.3%, recall of 93.5%, and an F-measure of 91.8%. Our method also worked fast, taking only 0.025 seconds to process a new image. It is 7.12 times faster than Deep Learning which requires 0.18 seconds for one classification.
The Development of Corporate Entrepreneurship among Emerging Economy SMEs: Insights from Both Institutional and Contingency Theory
Authors: Mustafa Michael
Published: June 2022

How do emerging economy SMEs develop Corporate Entrepreneurship (CE)? Emerging economies represent different institutional contexts to those found in developed economies. Currently our understanding of CE and its emergence is rooted in Western-based assumptions. Consequently, our understanding of the inter-relationship between the emerging economy institutional environments and the SME environment and how they shape corporate entrepreneurial process remains lacking. In response to such gaps in our understanding, this study draws on both Institutional and Contingency theories to explore how CE is developed among African SMEs. Drawing on evidence from four indepth case studies of Kenyan SMEs, our findings reveal a complex process wherein elements of the Kenyan institutional environment shape the internal organization and CE related activities of Kenyan SMEs. Our study extends and enriches previous models of CE and deepen our understanding of how and why context matters for CE.
Best orthogonal trigonometric approximations of the Nikol'skii-Besov-type classes of periodic functions of one and several variables
Authors: Fedunyk-Yaremchuk O.V. , Hembars'ka S.B.
Published: June 2022

We obtained the exact order estimates of the best orthogonal trigonometric approximations of periodic functions of one and several variables from the Nikol'skii-Besov-type classes $B^{\omega}_{1,\theta}$ ($B^{\Omega}_{1,\theta}$ in the multivariate case $d\geq2$) in the space $B_{\infty,1}$. We observe that in the multivariate case the orders of mentioned approximation characteristics of the functional classes $B^{\Omega}_{1,\theta}$ are realized by their approximations by step hyperbolic Fourier sums that contain the necessary number of harmonics. In the univariate case, an optimal in the sense of order estimates for the best orthogonal trigonometric approximations of the corresponding functional classes are the ordinary partial sums of their Fourier series. As a consequence of the obtained results, the exact order estimates of the orthowidths of the classes $B^{\omega}_{1,\theta}$ ($B^{\Omega}_{1,\theta}$ for $d\geq2$) in the space $B_{\infty,1}$ are also established. Besides, we note that in the univariate case, in contrast to the multivariate one, the estimates of the considered approximation characteristics do not depend on the parameter $\theta$.
On Wick calculus and its relationship with stochastic integration on spaces of regular test functions in the Lévy white noise analysis
Authors: Kachanovsky N.A.
Published: June 2022

We deal with spaces of regular test functions in the Lévy white noise analysis, which are constructed using Lytvynov's generalization of a chaotic representation property. Our aim is to study properties of Wick multiplication and of Wick versions of holomorphic functions, and to describe a relationship between Wick multiplication and integration, on these spaces. More exactly, we establish that a Wick product of regular test functions is a regular test function; under some conditions a Wick version of a holomorphic function with an argument from the space of regular test functions is a regular test function; show that when employing the Wick multiplication, it is possible to take a time-independent multiplier out of the sign of an extended stochastic integral with respect to a Lévy process; establish an analog of this result for a Pettis integral (a weak integral); obtain a representation of the extended stochastic integral via formal Pettis integral from the Wick product of the original integrand by a Lévy white noise. As an example of an application of our results, we consider an integral stochastic equation with Wick multiplication.
Current approaches in management of patients with keratoconus
Authors: Gănescu Alexandra Mădălina
Published: June 2022

Keratoconus is a relatively frequent eye disease, especially in young patients, in which the cornea gradually thins and deforms in a cone shape. In the past, it could be treated only with glasses, rigid contact lenses or, for advanced cases, penetrating corneal transplant. Nowadays, corneal cross-linking, intracorneal ring segments implantation or deep anterior lamellar keratoplasty are available options of treatment, along with the above mentioned ones. Several studies focused on this disease and its management attempted to establish the applicability of these treatment methods in current practice. In the early stages, glasses or soft toric contact lenses are able to correct the astigmatism, but, as the disease progresses, rigid contact lenses are indicated. Corneal cross-linking is done in order to slow down or even stop the progression of the disease. Implanting intracorneal ring segments helps improve visual acuity in patients with low vision that cannot be corrected otherwise. Advanced stages need corneal transplant, either penetrating or anterior lamellar, depending on each patient’s ocular characteristics. Thus, keratoconus treatment is individualized for every patient, according to the stage of the disease. Moreover, because of the new developed technology, keratoconus patients can benefit from efficient treatment, in much safer conditions.
Oral fixed drug eruptions to mefenamic acid - adverse drug reaction to over the counter medication taken for menstrual pain
Authors: Palla Santosh , Anand Sajan G , Sethuraman Vijayparthiban
Published: June 2022

The reports on adverse drug reactions(ADR) to self-medication or over-the-counter medication are common across medical literature. However, the occurrence of oral fixed drug eruptions (FDE) to mefenamic acid is unique. We report a case of FDE to a drug obtained over the counter for menstrual pain. The essential findings from history, oral/ dental examination, diagnostic approach, and treatment are briefly discussed along with a note on time and dosing for the oral drug provocation tests. The occurrence of ADR may be avoided by spreading awareness against OTC medication and labeling the specific drug for patients with established ADR.
Socioeconomic burden of orthodontic treatment: a systematic review
Authors: Ghonmode Sumeet , Shrivastava Sunita , Kadaskar Ashita R. , Bapat Salil
Published: June 2022

Objective. The relationship between Socio-Economic Status (SES) and the factors that may play a role in orthodontic treatment demand and uptake have not been explored. Such information is needed for better planning of orthodontic services and to ensure that health care is provided equally among all social classes. The objective of this systematic review was to find out whether socioeconomic status affects the treatment needs of orthodontic patients.

Methods. Literature search was done using Medical Subject Heading terms (MeSH) in PubMed, LIVIVO, Google Scholar, and EbscoHost from 1 January 1965 to 1 August 2021. All cross-sectional studies were included. Both male and female participants were included in the review. The quality of assessment for the included studies was evaluated independently by two reviewers using “The Jonna Briggs Institute” tool (JBI) for cross-section studies. The Cochrane Collaboration’s tool was modified and used for assessing the risk of bias and risk of summary.

Results. A total of 704 articles were found. The relevant database searches were PubMed 259 articles, followed by EbscoHost 280, LIVIVO 145, and Google Scholar 20 articles. A final of 10 cross-sectional studies were included in the review.

Conclusion. The reviewers found evidence that parents ultimately decide whether the child will undergo treatment, possibly depending on their financial situation.
The quality of life after cleft lip and palate surgery
Authors: Opriș Daiana , Băciuț Grigore , Bran Simion , Dinu Cristian , Armencea Gabriel , Opriș Horia , Mitre Ileana , Manea Avram , Stoia Sebastian , Tamas Tiberiu , Barbur Ioan , Băciuț Mihaela
Published: June 2022

Background and aims. Labio-maxillo-palatal clefts represent one of the most common congenital malformations, which manifests through aesthetic, functional and psycho-social alterations. The long course of multidisciplinary treatments represent a psycho-emotional and financial burden for both the patient and his family, being an important factor in the complex management of these patients.

The study aims to assess the quality of life of parents of children with clefts and the psychosocial impact on the family and society.

Methods. The study included 40 subjects who met the inclusion criteria for this study. Following patient informed consent and the approval of the ethics committee, the data were collected by applying the quality-of-life evaluation questionnaire. The evaluation was performed using the Likert scale (1 - not at all to 5 - very satisfactory), and the data were statistically processed.

Results. Most of the questionnaires were completed by the mother, who accompanied the child to the regular check-up; 58% of parents believe that their social life is not affected by having a child with a cleft, and 83% say that interfamilial relationships have not been affected. Most parents consider that the postoperative result was very good, which led to improved psycho-social integration of the child.

Conclusions. The study confirmed an acceptable quality of life for the children’s parents, which was not influenced by the family presence of a child with a cleft. At the same time, the excessive care of the parents for the child with the cleft was confirmed. The postoperative improvement of the aesthetic aspect led to a much better psycho-emotional integration of the child in the society.
Microbiome modulation in the prevention and management of colorectal cancer: a systematic review of clinical interventions
Authors: Fratila Teodora D. , Ismaiel Abdulrahman , Dumitrascu Dan L.
Published: June 2022

Introduction. The role of probiotics/prebiotics in modulating the procarcinogenic effects of microbiota have been studied with inconclusive results. This systematic review aimed to identify the role of several studied interventions on the gut microbiota modulation in humans for the prevention and management of colorectal cancer (CRC).

Methods. We conducted a systematic search using PubMed and Cochrane Central electronic databases, identifying clinical studies published within the last 20 years. We performed a qualitative analysis of eligible studies included in our review on each of the 4 investigated topics: CRC potential biomarkers, dietary interventions, probiotic administration in non-surgical and surgical patients, respectively.

Results. A total of 54 studies involving healthy volunteers, in addition to colorectal adenoma and CRC patients were included in our qualitative synthesis. We were able to identify bacterial signatures of CRC including Fusobacterium nucleatum and Clostridium butyricum. Moreover, dietary supplementation with oligosaccharides or fibers increased short chain fatty acid-producing bacteria levels, thus inhibiting tumorigenesis. Furthermore, we have confirmed that Lactobacilli and Bifidobacterium intake modulates gut microbiota towards tumor suppression. We have also showed that probiotic intake around colectomy significantly reduces complications.

Conclusions. Bacterial metabolism is strongly linked with colonic carcinogenesis and influenced by diet. Probiotics and prebiotics can act as microbiota modulators, suppressing epithelial proliferation and reversing DNA toxicity. As adjuvants to surgery or chemotherapy, Lactobacilli and Bifidobacteria decrease complications. Improved outcomes in CRC patients can possibly be achieved through future research directed towards the benefits of bacterial agents as tumor suppressors or as treatment of oncological therapy resistance.
Is C-section a risk factor for early onset irritable bowel syndrome?
Authors: Galica Adelina Nicoleta , Grabocka Erisa , Dumitrascu Dan Lucian
Published: June 2022

Background and aim. There are controversial data in literature regarding the influence of abdominal and pelvic surgery on the onset of gastrointestinal symptoms. The aim of this study was to assess whether women who had a C-section (cesarean section) are more likely to develop irritable bowel syndrome (IBS) early after delivery than those who have given birth naturally.

Method. A cross-sectional study investigated women who had undergone C-section and were compared with a control group of women who had natural delivery. Data were obtained from Maternity Ward of Korce Hospital, in Albania. We conducted a telephone interview based on a questionnaire containing items to diagnose IBS based on the Rome IV criteria. The interviews were conducted 9 to 12 months after delivery.

Results. The prevalence of IBS in both groups taken together 4.6%. In the C-section group, prevalence of IBS was 4.3%, while in the control group it was 5.2%. All the patients with IBS had subtype with predominance of constipation. The RR 0.814 (CI 95%, 0.1423-4.66) does not confirm the hypothesis that C- section may induce early onset of IBS more often than natural birth.

Conclusion. The prevalence of IBS was (4.6%), within the known range of the Rome Foundation Global Study. Delivery by C-section does not have a role in developing IBS symptoms more than delivery by natural way in this group of Albanian women.
Resección de osteoma osteoide vertebral asistida por planificación 3D. Presentación de un caso
Authors: Lombardo Ernesto , Velez Manuel , Verger Sergio
Published: June 2022

La localización vertebral de una lesión compatible con un osteoma osteoide requiere, muchas veces, su resección en bloque marginal mediante cirugía. El objetivo de este artículo es informar sobre el uso de la tecnología en impresión 3D para desarrollar guías de corte y así lograr una resección segura y completa de un osteoma osteoide de L1. Presentamos a un varón de 13 años, operado de un osteoma osteoide de L1 y detallamos la planificación preoperatoria con asistencia de la tecnología 3D, la técnica quirúrgica mediante guías de corte impresas y un modelo real de la columna lumbar y el control posoperatorio.

Conclusiones: Ante la indicación de cirugía para una lesión compatible con osteoma osteoide en la columna debe decidirse entre la posibilidad de resección intralesional abierta o percutánea y la resección marginal en bloque. Para localizar la lesión durante la cirugía, se utilizan diferentes métodos. En nuestro Servicio, estamos utilizando la tecnología 3D para la planificación preoperatoria de múltiples enfermedadestraumatológicas agudas y las secuelas. Esto nos permite una mayor precisión y seguridad en la identificación de los márgenes de resección intraoperatoria, reduciendo, al mínimo, la extracción de tejidos sanos y evitando la inestabilidad posoperatoria.
Osteosarcoma extraesquelético. Presentación de un caso
Authors: Del Castillo Bellón Juan Miguel , Pache Santiago , Silveri Claudio , Casales Nicolás , Cúneo Alejandro
Published: June 2022

El osteosarcoma extraesquelético es un tumor maligno de alto grado que representa menos del 2% de los sarcomas de partes blandas y que afecta principalmente a personas entre la quinta y sexta década de la vida. Típicamente el diagnóstico es tardío, con un período síntomas-diagnóstico extenso, >6 meses en comparación con el del osteosarcoma convencional. Comunicamos el caso de un hombre de 43 años que acudió con una tumoración en la región glútea y el muslo izquierdo de un año de evolución. Luego de estudios complementarios y una biopsia no concluyentes, se procedió a la resección quirúrgica del tumor con márgenes amplios. El estudio histológico de la pieza indicó osteosarcoma extraesquelético. El paciente tuvo una evolución muy buena, sin elementos de recidiva local ni compromiso a distancia luego de 20 meses de seguimiento.
Tratamiento de la escoliosis neuromuscular en niños pequeños con parálisis cerebral espástica grave: revisión sistemática de la bibliografía
Authors: Manzone Patricio
Published: June 2022

Objetivo: El riesgo de desarrollar escoliosis de comienzo temprano es alto en niños con parálisis cerebral espástica, nivel IV y V del GMFCS. No hay acuerdo sobre el tratamiento para niños <5-6 años y esta revisión sistemática se centra en este tópico.
Materiales y Métodos: Búsqueda en PubMed, Google Scholar, Cochrane Library, BVS/BIREME, LILACS y SciELO, entre enero de 2009 y noviembre de 2020, con los descriptores: “cerebral palsy, scoliosis, early-onset, treatment”. Se eliminaron los artículos duplicados, no relacionados con la investigación, sin texto completo, con pocos pacientes con parálisis cerebral espástica, sin discriminación etiológica, sin resultados y con edad avanzada. Evaluaciones: nivel de evidencia, edad, nivel del GMFCS, tipo de deformidades, tratamientos, seguimiento, resultados y complicaciones.
Resultados: Se incluyeron 10 de 6770 artículos: 8 con nivel de evidencia IV, edad: 3.2-10 años, deformidad predominante: escoliosis, seguimiento: 1.5-9.8 años. Tratamientos: barras de crecimiento tradicionales o magnéticas, fusión instrumentada precoz, yesos, ortesis y prótesis costal expandible de titanio. La fusión precoz instrumentada logra una corrección ≥75% del ángulo de Cobb; las barras de crecimiento, las ortesis o la prótesis costal expandible de titanio, el 25-50%, y los yesos solo logran mantenerla. La tasa de complicaciones es menor en los tratamientos incruentos (5,8-36%) que en los quirúrgicos (21,5-73,1%). Las tasas de complicaciones quirúrgicas y de muerte poscirugía en espásticos son mayores que en hipotónicos.
Conclusiones: La cirugía no es una buena opción inicial para las escoliosis de comienzo temprano en niños pequeños con parálisis cerebral espástica, nivel IV y V del GMFCS.
Lipoblastoma de extremidades y tronco: recurrencia local y complicaciones después de la resección marginal. Estudio multicéntrico
Authors: Manzone Patricio , Masquijo Julio Javier , Salom Taverner Marta , Fiscina Silvana , Innocenti Sergio Fernando
Published: June 2022

Objetivo: El lipoblastoma es una neoplasia benigna poco común que puede presentarse como un tumor localizado o difuso (lipoblastomatosis). Debido a su rareza, se han publicado, en su mayoría, solo reportes de casos. El objetivo de este estudio fue determinar la tasa de recurrencia local y las complicaciones después de la resección marginal de lipoblastomas ubicados en extremidades y tronco.
Materiales y Métodos: Se realizó una revisión retrospectiva multicéntrica de los registros de pacientes pediátricos sometidos a extirpación quirúrgica de lipoblastomas en cuatro instituciones, entre 2008 y 2018. Se registraron las siguientes variables: datos demográficos, método diagnóstico, volumen de la lesión, tipo de biopsia, complicaciones, recurrencia y necesidad de procedimientos adicionales.
Resultados: Durante el período de estudio, 17 pacientes cumplieron los criterios de inclusión para la evaluación. La media de la edad fue de 3.9 años y el 65% eran varones. Las ubicaciones más frecuentes fueron: muslos (n = 9), columna lumbar (n = 2) y glúteos (n = 2). El volumen de masa preoperatorio medio fue de 305,5 cm3 (rango: 10,2-1745,8). La duración media del seguimiento fue de 2.8 años (rango: de 8 meses a 5.6 años). Hubo una recurrencia (5,9%) y una cicatriz retraída en el área glútea como complicación. Ninguno requirió una nueva intervención.
Conclusión: La resección quirúrgica marginal de lipoblastomas localizados en el dorso o las extremidades genera una baja tasa de recurrencia a los 2.8 años de seguimiento y mínimas complicaciones.
Fascitis plantar: análisis de opciones terapéuticas
Authors: Iglesias Matías , Sperone Enzo , Macklin Vadell Alberto , Bigatti Andrés
Published: June 2022

El objetivo de este artículo es analizar las distintas opciones de tratamiento. Se realizó una encuesta virtual a diferentes traumatólogos especialistas en pierna y pie, sobre el tratamiento de la fascitis plantar. Los resultados fueron variados, lo que demuestra que no hay una respuesta concreta ante el tratamiento crónico.

Conclusiones: La fascitis plantar es un cuadro doloroso frecuente. Su origen es desconocido, pero está relacionada con múltiples factores. Se han recomendado muchas modalidades terapéuticas, como fármacos, fisioterapia, ortesis y cirugía, pero no existe un estudio que analice la eficacia de cada una de ellas por separado ni que confirme categóricamente su utilidad.
Tumor mesenquimático fosfatúrico de pelvis: abordaje multidisciplinario
Authors: Cullari Leonardo Matías , Senes Sebastián , Taleb Juan Pablo , Fita Ignacio , Sarmiento Pablo Daniel
Published: June 2022

El tumor mesenquimático fosfatúrico es una entidad clinicopatológica sumamente infrecuente. Además de provocar dolor óseo insidioso y polimialgias, se acompaña de alteraciones del metabolismo fosfocálcico de difícil manejo clínico. El abordaje multidisciplinario resulta la clave del éxito en esta enfermedad. Presentamos una paciente de 52 años de edad con antecedente de tumor mesenquimático fosfatúrico en la hemipelvis derecha con extensión a la cadera homolateral de 10 años de evolución. Clínicamente presentaba osteomalacia oncogénica (hipofosfatemia e hiperfosfaturia) que no se corregía, pese a un agente de últimageneración, el burosumab, un inhibidor del factor de crecimiento fibroblástico 23, que aumenta la  tubular renal de fosfatos. En un comité multidisciplinario, se decidió la resección con márgenes oncológicos y se logró una mejoría clínica franca. Comunicamos este caso, debido a que es un cuadro infrecuente
Fracturas metafiso-diafisarias de radio distal en adolescentes: estudio comparativo entre fijación percutánea con clavijas y clavos elásticos de titanio
Authors: Ferreyra Andrés , Allende Felicitas , Sánchez Benítez Juan Emiliano , Gramajo Franco , Damiguella Bruno , Allende Victoria , Masquijo Julio Javier
Published: June 2022

Objetivo: Comparar los resultados y las complicaciones entre la fijación percutánea con clavijas (FPC) y el enclavado endomedular elástico (EEE).

Materiales y Métodos: Se evaluaron las radiografías para determinar deformidades angulares en la consolidación. Se usó el sistema de Clavien-Dindo adaptado para clasificar las complicaciones.

Resultados: El grupo A (FPC) incluyó a 17 pacientes y el grupo B (EEE), a 19. La edad promedio era de 12.5 ± 1.6 años y el seguimiento promedio fue de 27.6 ± 16.6 meses. Los pacientes con EEE requirieron menos tiempo de inmovilización (2.8 ± 1.8 vs. 5.9 ± 1.3 semanas, p 0,00029). Un paciente de cada grupo tuvo una angulación >10° en la consolidación. La tasa de complicaciones fue mayor en el grupo A (18% vs. 5,3%, p 0,27). En el grupo A, hubo 2 complicaciones tipo III (pérdida de corrección) y 2 tipo II (infección y granuloma). Un paciente del grupo B presentó una complicación tipo I (prominencia del implante). Dieciséis pacientes del grupo B se sometieron a una segunda cirugía para extraer el implante. Dos del grupo A requirieron revisión de la fijación por pérdida de alineación.

Conclusiones: Ambas técnicas son eficaces para estabilizar fracturas metafiso-diafisarias de radio distal en adolescentes. El EEE tiene la ventaja de una inmovilización más corta y menos complicaciones, pero es más caro y requiere otra cirugía para extraer el implante. La FPC no requiere de anestesia para extraer el implante, aunque sí una inmovilización más prolongada y la tasa de complicaciones es más alta.
Comparación entre cirugía asistida por navegación y cirugía convencional en el reemplazo total de rodilla
Authors: Pace Agustín , Estrada Matías , Ruggieri Eduardo Andrés
Published: June 2022

Introducción: El reemplazo total de rodilla es el tratamiento de elección en los estadios finales de la patología degenerativa articular; su duración depende, en gran medida, de la alineación, el posicionamiento y la estabilidad de la articulación. El objetivo de este estudio fue comparar el eje mecánico del miembro inferior medido por telemetría, después de un reemplazo total de rodilla asistido por navegación o con técnicas convencionales, realizado por el mismo cirujano y con la misma prótesis. Se evaluó también el grado de satisfacción de los pacientes sometidos a este procedimiento y su posible variación entre estas dos técnicas.

Materiales y Métodos: Estudio retrospectivo, comparativo, observacional, descriptivo de 200 pacientes sometidos a un reemplazo total de rodilla, divididos en dos grupos: grupo A (100 pacientes) con prótesis Columbus® colocada con el sistema de navegación OrthoPilot® y grupo B (100 pacientes), con la misma prótesis colocada con técnica convencional. Se realizaron telemetrías posoperatorias para determinar y comparar el resultado en ambos grupos. También se comparó el grado de satisfacción con el procedimiento y el índice de masa corporal y su posible relación con los resultados.

Resultados: Se obtuvieron mejores resultados en los reemplazos totales de cadera asistidos por navegación, con diferencias estadísticamente significativas tanto en la obtención del eje mecánico posoperatorio como en el grado de satisfacción con el procedimiento.

Conclusión: Los reemplazos totales de rodilla primarios guiados por un sistema de navegación fueron más precisos para lograr la alineación final del miembro en un eje mecánico de 0°± 3°.
Análisis clínico y radiográfico del vástago de cadera no cementado “CEMENTFREE”® de fabricación nacional. Resultados a corto plazo
Authors: Vega Carlos Alberto , Sued Matías , Moruno Cossio Favio , Balderrama Uriona Gustavo , Vergara Fernanda , Garavano Esteban , Jimenez Rios Wilmer , Mazzeneth Contreras Alnner
Published: June 2022

Introducción: La estabilidad del componente femoral y su resistencia al hundimiento son factores críticos para lograr una correcta osteointegración y el éxito clínico de la artroplastia total de cadera no cementada. Hay pocos estudios que evalúen los resultados con vástagos de fabricación nacional, aun los de corto y mediano plazo. El objetivo de este estudio fue realizar un análisis clínico y radiográfico de pacientes sometidos a un reemplazo total de cadera con implante de un componente femoral de fabricación nacional (CEMENTFREE®).

Materiales y Métodos: Se llevó a cabo un estudio retrospectivo con pacientes sometidos a un reemplazo total de cadera con vástago CEMENTFREE®, entre enero de 2015 y agosto de 2020, a cargo del mismo cirujano y en la misma institución.

Resultados: Se implantaron 46 vástagos sin cementación en 42 pacientes (rango etario: 60-81 años). El seguimiento promedio fue de 3 años (mín. 1 año, máx. 5 años). Aplicando el Harris Hip Score se observó una franca mejoría (promedio 47 en el preoperatorio y 93 después de la cirugía). La tasa de supervivencia fue del 100% a los 5 años.

Conclusión: La artroplastia de cadera con el vástago CEMENTFREE® de fabricación nacional ha demostrado ser una opción comparable con otros vástagos importados, en cuanto a los resultados clínicos y radiográficos a corto plazo. Resta evaluar los resultados a mediano y largo plazo.
Presentación del caso
Authors: Re Rodrigo , Negri Maximiliano
Published: June 2022

Varón de 8 años de edad que consulta por una tumoración en la pierna derecha. Refiere que el dolor había comenzado aproximadamente 2 meses antes, que es continuo, vespertino y ha aumentado con el paso de los días. En el momento de la consulta, el dolor es constante, de intensidad variable y aumenta con la carga y la actividad. No lo despierta por la noche, no ha tenido fiebre, sudoración ni síntomas sistémicos concomitantes.
Puntajes II
Authors: Bersusky Ernesto , Arzac Ulla Ignacio , Loterzo Lidia G. , Ricciardi Guillermo , Zanotti Gerardo , Patiño Juan Martín
Published: June 2022

El Comité Editorial quiere brindar a sus lectores una actualización de las escalas de uso corriente. El empleo de tablas y escalas es una práctica muy extendida en la Ortopedia y Traumatología. La medición y la cuantificación de los aspectos clínicos, funcionales y radiográficos se convirtieron en una herramienta imprescindible para la toma de decisiones en diferentes aspectos de la actividad asistencial. Llevamos a cabo una revisión de las escalas más utilizadas, definiendo su uso e incluyendo bibliografía original y actualizada.
Artemisia lanaticapitula (Asteraceae: Tribe Anthemideae), a New Species from Zhejiang, East China
Authors: Lu Yi-Fei , Xie Wen-Yuan , Li Hua-Dong , Chen Zheng-Hai , Jin Xiao-Feng
Published: June 2022

Abstract— Artemisia lanaticapitula (Asteraceae: Anthemideae), a new species from Zhejiang in East China, is described and illustrated, based on the analyses of morphological observations and molecular phylogenetic evidence. This new species is similar
to Artemisia anomala in having simple and undivided leaves, but differs by having phyllaries, corolla limbs, and abaxial leaf surfaces densely white-lanate, an involucre that is semiglobose, 3.5‐6 mm in diameter, and capitulate pedunculate at the base. It grows along streams
under forests or on roadsides at forest margins; the species is narrowly distributed in Eastern and Southern Zhejiang.
Species Delimitation of the Atlantic Forest Endemic Inga subnuda (Leguminosae, Caesalpinioideae, Mimosoid Clade) Subspecies Based on Morphological, Ecological, and Palaeoecological Data
Authors: Castro-Bonilla Michael A. , Bueno Marcelo L. , Romano Pedro S. R. , Dutra Valquíria F. , Fregonezi Jefferson N. , Garcia Flavia C. P.
Published: June 2022

Abstract— Inga subnuda is one of 31 Inga species endemic to the Brazilian Atlantic Forest and is currently treated as having two subspecies (I. subnuda subsp. subnuda and I. subnuda subsp. luschnathiana). However, due to intermixed
leaf and floral traits, these subspecies are difficult to morphologically distinguish. This study aimed to better understand the boundaries of these two subspecies and to test if these taxa should be treated at the species level. Morphological variation and bioclimatic data related to the
two subspecies of the complex were assessed using multivariate morphometric analyses and ecological niche modeling. Different groups were recognized using morphological quantitative characters. The climatic space was similar but not identical, and recent climatic cycles that could have shaped
the current distributions of the subspecies are discussed. The results of our integrative study suggest the subspecies are distinct species. Thus, we propose changing the status of I. subnuda subsp. luschnathiana to the rank of species. The new taxon is described and illustrated.
Synthesizing Existing Phylogenetic Data to Advance Phylogenetic Research in Orobanchaceae
Authors: Mortimer Sebastian M. E. , Boyko James , Beaulieu Jeremy M. , Tank David C.
Published: June 2022

Abstract— To date, no comprehensive phylogenetic analyses have been conducted in Orobanchaceae that include both a wide sampling of genera and a large sampling of species. In addition, a lack of fossil evidence in the clade precludes the use of primary fossil calibrations
for divergence time estimation, preventing the establishment of a comprehensive temporal framework for use in macroevolutionary studies. Here, we use a recently developed set of tools for synthesizing publicly available data, apply these to reconstruct a comprehensive timetree for Orobanchaceae,
and then investigate diversification dynamics in this clade of mostly parasitic plants using two model based methods. The assembled supermatrix included more than 900 species, representing approximately 40% of the known species diversity of the family, and the resulting phylogeny largely confirmed
relationships revealed in earlier studies; however, we identified ten non-monophyletic genera that will require focused systematic attention to resolve. Diversification rate analyses found substantial support for character-dependent diversification, with elevated rates in hemiparasitic clades,
and evidence for a number of speciation rate changes throughout the tree that are likely linked to other traits. Importantly, our multi-state HiSSE (Hidden State Speciation and Extinction) analysis revealed that transitions to a parasitic lifestyle only occur when there is a prior transition
in an unobserved precursor state. For Orobanchaceae, our study provides a new comprehensive framework for the clade that can serve as a stepping-stone for future macroevolutionary studies.
Phylogenetics Support the Description of a New Sichuanese Species, Susanne’s Gentian, Gentiana susanneae (Gentianaceae)
Authors: Favre Adrien , Pringle James S. , Fu Peng-Cheng
Published: June 2022

Abstract— The region of the Qinghai-Tibet Plateau hosts a remarkable biodiversity, including a plethora of endemics. There, the process of documenting biodiversity is still ongoing, and recently, an unusual plant of Gentiana section Frigida was discovered
at Cuopu Lakes (Sichuan, China). Although Flora of China identified these specimens as G. algida based upon unmistakable traits (e.g. corolla colour and length, sessile flowers), it was obvious that the Sichuanese plants strongly differed morphologically from G. algida
specimens from Siberia and North America. In order to clarify their relationships, we used an integrative approach, investigating not only morphological traits, but also phylogenetic relationships (based upon plastome and rDNA-cistron), as well as chloroplast structure. Whereas the rDNA-cistron
phylogeny was poorly resolved, the plastome phylogeny was well supported in both Bayesian inference and maximum likelihood analyses. Our findings indicate that the samples of G. algida from Cuopu Lakes are morphologically and genetically distinct from those collected elsewhere, supporting
the recognition of a new species, G. susanneae. The new species differs from G. purdomii (another similar species) by having sessile flowers, and from G. algida by being a generally much taller plant with more and longer flowers, and by having a smaller calyx. Gentiana
susanneae clusters with other species from the region of the Qinghai-Tibet Plateau from which it differs morphologically, and is only distantly related to the G. algida/G. frigida clade, which stems from a dispersal event out of Tibet. Based upon these solid lines of
evidence, G. susanneae is described and illustrated (drawings and photographs). In addition, a conservation assessment and an identification key modified from Flora of China are provided.
Novelties in Oocephalus (Hyptidinae, Lamiaceae) from Central Brazil: Two new species from Chapada dos Veadeiros National Park
Authors: Soares Arthur de Souza , Harley Raymond Mervyn , Pastore José Floriano Barêa , Jardim Jomar Gomes
Published: June 2022

Abstract— Two new species of Oocephalus (Ocimeae: Hyptidinae), O. griseus and O. campestris, from the Chapada dos Veadeiros National Park (CVNP), in Goiás state, Brazil, are proposed. For each species, description and comments
on distribution and taxonomy are provided. Also, a diagnostic key to all Oocephalus species occurring in the state of Goiás and Distrito Federal is provided, as well as a line drawing and illustrated photographs of the new species.
Novelties inCaleasect.Meyeria(Asteraceae, Neurolaeneae) from Brazil
Authors: Bueno Vinícius Resende , Heiden Gustavo
Published: June 2022

Abstract—We herein present nomenclatural and taxonomic novelties inCaleasect.Meyeriafrom Brazil.Calea pruskianais a new species related toC. trianthaand can be distinguished by the acute or cuneate, rarely attenuate leaf apex (vs. obtuse), slightly branched capitulescence (vs. profusely branched), and ray florets 18‐21.7 mm long (vs. 9.2‐15.3 mm).Calea hispidaf.subintegerrimais lectotypified, recombined, and elevated to species level asCalea subintegerrima, which also resemblesC. triantha, however differs from it by the usually glabrous abaxial leaf surface (vs. usually hispid), glandular-punctate peduncle (vs. glands absent), and cypselae with hirsute ribs (vs. pilose ribs). These species are described and illustrated, their geographic distributions are mapped, and their taxonomic affinities are discussed. Furthermore, a new terminology is proposed to describe more accurately the pappus scale size variation according to the relative length of the scales and the occurrence of combinations of pappus scales of different lengths in the same capitulum.
The Genus Sisyrinchium (Iridaceae) in Sierra Madre Occidental, Mexico: A New Species, Richness and Distribution
Authors: Ávila-González Heriberto , González-Gallegos Jesús Guadalupe , Munguía-Lino Guadalupe , Castro-Castro Arturo
Published: June 2022

Abstract— Several taxonomic novelties of the genus Sisyrinchium have been presented recently, so for some specialists this reveals the need of more systematic studies on the genus to better understand its diversity. They have also pointed out some regions as
those of more priority to be explored. One of these is northwestern Mexico, in which after a floristic inventory in a Natural Protected Area in Sierra Madre Occidental, a new species was discovered. It is here described and illustrated as Sisyrinchium jacquelineanum, and diagnosed
against S. polycladum, the morphologically most similar species. It differs from this by the growth habit, position of root thickenings, absence of fibrous remnants of old leaves at the base of the stem, flower size, and in the shape and pubescence of the capsules. An identification
key for the 16 species of Sisyrinchium present in the Sierra Madre Occidental and an analysis of their richness patterns throughout this province are also provided.
Morphological Reanalysis of the Pedicularis sudetica Complex of Arctic North America: Character Trimming with Occam’s Razor
Authors: Robart Bruce W. , Opferman Carol , Connacher Lynette , Elangovan Aravind , Noel Noah , Sclesky Joseph , Bonachea Luis , Robart Hannah
Published: June 2022

Abstract— Pedicularis sudetica can be a difficult complex to identify and classify using herbarium specimens. Colors fade, rendering corolla patterns indistinct. Especially problematic is the presence of spots on the lobes of the lower lip and color patterns
of the galea. Spots are either clearly visible or so faded that only a few spots are visible on one or two flowers in the inflorescence. Galeas are either unequivocally bicolored, solid, or indistinctly diffuse. Other characters have been inconsistently applied by taxonomists and/or are difficult
to discern. All these factors combined only serve to confound taxon identity and classification, and members of the complex have been classified as species, subspecies, or even varieties by different taxonomists. Multiple correspondence analysis (MCA) of qualitative traits and principal component
analysis (PCA) of quantitative traits were employed to explore the character and taxonomic structure of the group. MCA revealed that only three characters are necessary to classify the four taxa of the complex. No taxon structure was evident with PCA. Abundance of intermediate specimens over
a broad geographic range indicates hybridization is extensive among members of the complex and suggests that a subspecific classification of the group is appropriate.
Eugenia paranapanemensis (Myrtaceae), The Pitanga-amarela, and a Key to Eugenia sect. Eugenia Species from São Paulo State, Brazil
Authors: Valdemarin Karinne S. , Camargo Paulo H. S. A. , Moreno Daniele Janina , Souza Vinicius Castro , Lucas Eve , Mazine Fiorella F.
Published: June 2022

Abstract— A new species popularly known as pitanga-amarela, Eugenia paranapanemensis, from Seasonal Forest vegetation in the Atlantic Forest of São Paulo state is described. Our analysis, based on morphological data, shows that this species belongs
to Eugenia sect. Eugenia. Among the species in the Eugenia sect. Eugenia clade, E. paranapanemensis can be recognized by its height of about 25 m, flowers with a smooth and pubescent hypanthium, brownish to ochraceous trichomes, and fruits that are
yellow when ripe, with up to six seeds.
Calea sessilifolia(Asteraceae, Neurolaeneae), a New Species from the Diamantina Plateau, Minas Gerais, Brazil
Authors: Bueno Vinícius Resende , Heiden Gustavo
Published: June 2022

Abstract—A new species ofCaleabelonging to theCalea myrtifoliacomplex is described.Calea sessilifoliastands out by the unusual herbaceous habit 0.1 to 0.25 m tall and sessile leaves compared with the remaining species of the complex. The new species is related toCalea arachnoidea,C. heteropappa, andC. semiriidue the polylength pappus scales, but is easily distinguished by its height 0.1--0.25 m tall (vs. 0.3‐2 m), sessile leaves (vs. petiolate leaves), acrodromous venation (vs. camptodromous or semicraspedodromous), and capitulescence of solitary capitula or rarely a dichasiform cyme and few-branched (vs. branched dichasiform cyme). The new species is described, its taxonomic affinities are discussed, and its main vegetative and reproductive structures are illustrated. In addition, a key for identification and one map with the geographic distribution of the species ofCaleabearing polylength pappus scales fromCalea myrtifoliacomplex are provided.