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Introduction: Intertrochanteric fracture is one of the most common fracture seen in elderly age group. Intramedullary fixation achieves stable fixation. This study was done to find out outcomes with PFNA2, with an objective of finding significance of various radiological parameters. Methods: Forty-three patients were included who underwent closed reduction and PFNA2 fixation. They were followed up at 1month, 3months, 6months and 1 year postoperatively and tip apex distance, Cleveland index, parkers ratio, nail protrusion height, and neck shaft angle were calculated. Statistical correlation of each parameter with complications such as helical blade cut out and back out was derived. Results: Tip apex distance and Cleveland index was found to influence the position of screw and thereby the final outcome. No statistical correlation was derived between Parkers ratio, neck shaft angle and nail protrusion height with the complications. Functional outcome as calculated by Harris hip score was found to be satisfactory in most of the patients. There was only negligible mean loss of functional outcome postoperatively as calculated with parkers mobility score Conclusion: PFNA2 confirms to be stable fixation for both stable and unstable intertrochanteric fracture with fewer complication and good functional outcome in short period of time.
Introducción: La fractura intertrocantérica es una de las fracturas más comunes observadas en el grupo de edad avanzada. La fijación intramedular logra una fijación estable. Este estudio se realizó para conocer los resultados con PFNA2, con el objetivo de encontrar significación de varios parámetros radiológicos. Métodos: Se incluyeron 43 pacientes sometidos a reducción cerrada y fijación PFN A2. Se realizó un seguimiento a 1 mes, 3 meses, 6 meses y 1 año después de la operación y se calculó la distancia del vértice de la punta, el índice de Cleveland, la proporción de Parker, la altura de la protuberancia del clavo y el ángulo del eje del cuello. Se derivó la correlación estadística de cada parámetro con complicaciones como el corte de la hoja helicoidal y el retroceso. Resultados: Se encontró que la distancia del vértice de la punta y el índice de Cleveland influyen en la posición del tornillo y, por lo tanto, en el resultado final. No se obtuvo correlación estadística entre la proporción de Parkers, el ángulo del eje del cuello y la altura de la protuberancia del clavo con las complicaciones. Se encontró que el resultado funcional calculado por el puntaje de cadera de Harris fue satisfactorio en la mayoría de los pacientes. Solo hubo una pérdida media insignificante de resultado funcional después de la operación, según se calcula con la puntuación de movilidad de Parker. Conclusión: PFN A2 confirma ser una fijación estable para las fracturas intertrocantéricas estables e inestables con menos complicaciones y buen resultado funcional en corto período de tiempo.
RESUMEN
Introdução: Em 2020 teve início a pandemia de COVID-19 e considerando que para combatê-la houve recomendações de isolamentos sociais - permanência em suas residências - esperava-se que ocorresse grande quantidade de pessoas expostas às fraturas transtrocantéricas, principalmente os idosos. Objetivo: Avaliar a ocorrência dessas fraturas durante o período de pandemia COVID-19. Métodos: Estudo retrospectivo, transversal e observacional, com abordagem quantitativa. O levantamento de dados foi realizado por meio da análise de prontuários eletrônicos de pacientes durante o período de março de 2020 a outubro de 2021. As variáveis analisadas foram: idade, sexo, mecanismo de trauma, lado da fratura, comorbidades associadas, tempo entre a entrada e a operação, tipo de implante, tempo de hospitalização e fraturas associadas. Resultados: A amostra foi composta por 182 pacientes, sendo 61 homens e 121 mulheres, idade variando de 24-98 anos. O mecanismo de queda do mesmo nível foi responsável por 160 dos casos e não houve predominância de lado da fratura. As principais comorbidades foram a hipertensão e diabete melito; 92 pacientes foram operados em até 48 h de admissão. Implante cefalomedular foi usado em 159 casos. Ocorreram 19 óbitos intra-hospitalares dos quais 10 tinham fraturas associadas. Conclusão: Foi possível observar predominância do sexo feminino e idosos e elevação da idade média. O mecanismo de queda do mesmo nível foi responsável por 87% dos casos e não houve predominância de lado na fratura.
Introduction: In 2020, the COVID-19 pandemic began and considering to combat there were recommendations for social isolation - staying in their homes - what expected a large number of people would be exposed to transtrochanteric fractures, especially the elderly. Objective: To evaluate the occurrence of these fractures during the period of the COVID-19 pandemic. Methods: Retrospective, cross-sectional and observational study with a quantitative approach. Data collection was carried out through the analysis of electronic medical records of patients during the period from March 2020 to October 2021. The variables analyzed were: age, gender, trauma mechanism, fracture side, associated comorbidities, time between entry and operation, type of implant, length of hospital stay and associated fractures. Results: The sample consisted of 182 patients, 61 men and 121 women, ages ranging from 24-98 years. The mechanism of falling from the same level was responsible for 160 of the cases and there was no predominance of the side of the fracture. The main comorbidities were hypertension and diabetes mellitus; 92 patients were operated within 48 h of admission. Cephalomedullary nail ( was used in 159 cases. There were 19 in-hospital deaths, of which 10 had associated fractures. Conclusion: It was possible to observe a predominance of females and the elderly and an increase in the average age. The mechanism of falling from the same level was responsible for 87% of the cases and there was no predominance of the side in the fracture.
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BACKGROUND: Hip fractures have a significant impact on morbidity and mortality in the elderly. Aims: We retrospectively evaluated the predictive role of the Charlson Comorbidity Index (CCI) for 1-year mortality in elderly patients with unstable intertrochanteric hip fractures (ITHF) treated with bipolar hemiarthroplasty. The secondary objective was to identify other relationships, if any, between the variables recorded and mortality. METHODS: We included ≥75-year-old patients with unstable ITHF treated with bipolar hemiarthroplasty. We recorded patient gender, age, Body Mass Index, pre-fracture walking ability (Parker Mobility score, modified Harris Hip Score), America Society of Anesthesiologists (ASA) score, Charlson Comorbidity Index (CCI), time to surgery, time to mobilization, hospital stay, and postoperative complications. Uni- and multivariate logistic regression analysis were performed. Sensitivity and specificity were calculated using a ROC curve. RESULTS: A total of 135 patients with a mean age of 87.34 ± 5.5 years were included. The overall 1-year mortality rate was 18.5%. The CCI (OR 1.64 CI 95% 1.21-2.23; p 0.00821) and postoperative complications (OR 3.5 CI 95% 1.19-10.23 p 0.0202) were identified as independent predictors of 1-year mortality in the univariate regression and confirmed in the multivariate regression. CCI sensitivity to predict 1-year mortality was 80%. CONCLUSION: CCI has shown acceptable sensitivity in the prediction of 1-year mortality in elderly patients with unstable ITHF treated with bipolar hemiarthroplasty. It is of utmost importance to prevent postoperative complications due to their significant impact on 1-year mortality.
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OBJECTIVE: To evaluate the mechanical behavior of the proximal end of the femur submitted to the X-shaped polymethylmethacrylate (PMMA) reinforcement technique. METHODS: Fifteen synthetic femurs, with a Nacional® density of 10 PCF, were divided into two groups: the DX group, with 5 units that were submitted to PMMA reinforcement, and the DP group, with 10 units, which were evaluated intact. The volume of PMMA required, the maximum load, and the absorbed energy to fracture were analyzed by means of a static mechanical bending test simulating a fall on the greater trochanter. RESULTS: A mean of 6 ml of PMMA was used to model the X-reinforcement; it was observed that the DX group presented significantly higher maximum load (median = 1553 N, p = 0.005) and absorbed energy to fracture (median = 9.7 J; p = 0.050) than the DP group (median = 905 N and 6.6 J). CONCLUSION: X-reinforcement of the proximal end of synthetic femurs showed a statistically significant increase in the maximum load and absorbed energy to fracture in the mechanical assay when compared to the control group. Level of Evidence III, Experimental study.
OBJETIVO: Avaliar o comportamento mecânico da extremidade proximal do fêmur submetido à técnica de reforço com polimetilmetacrilato (PMMA) em forma de X. MÉTODOS: Foram utilizados 15 fêmures sintéticos, com densidade de 10 PCF da Nacional®, divididos nos grupos DX, com 5 unidades submetidas ao reforço com PMMA, e DP com 10 unidades, avaliados com sua integridade intacta. Foram analisados o volume de PMMA necessário, os valores da carga máxima e a energia absorvida até a fratura por meio de ensaio mecânico estático de flexão, simulando queda sobre o trocanter maior. RESULTADOS: Foram usados em média 6 ml de PMMA para a modelagem do reforço em X e observou-se que o grupo DX apresentou carga máxima (mediana = 1553 N; p = 0,005) e energia absorvida até fratura (mediana = 9,7 J; p = 0,050) significativamente maior que o grupo DP (mediana = 905 N e 6,6 J). CONCLUSÃO: O reforço em X da extremidade proximal de fêmures sintéticos apresentou incremento estatisticamente significativo da carga máxima e energia absorvida até a fratura no ensaio mecânico em comparação com o grupo controle. Nível de evidência III, Estudo experimental.
RESUMEN
ABSTRACT Objective: To evaluate the mechanical behavior of the proximal end of the femur submitted to the X-shaped polymethylmethacrylate (PMMA) reinforcement technique. Methods: Fifteen synthetic femurs, with a Nacional® density of 10 PCF, were divided into two groups: the DX group, with 5 units that were submitted to PMMA reinforcement, and the DP group, with 10 units, which were evaluated intact. The volume of PMMA required, the maximum load, and the absorbed energy to fracture were analyzed by means of a static mechanical bending test simulating a fall on the greater trochanter. Results: A mean of 6 ml of PMMA was used to model the X-reinforcement; it was observed that the DX group presented significantly higher maximum load (median = 1553 N, p = 0.005) and absorbed energy to fracture (median = 9.7 J; p = 0.050) than the DP group (median = 905 N and 6.6 J). Conclusion: X-reinforcement of the proximal end of synthetic femurs showed a statistically significant increase in the maximum load and absorbed energy to fracture in the mechanical assay when compared to the control group. Level of Evidence III, Experimental study.
RESUMO Objetivo: Avaliar o comportamento mecânico da extremidade proximal do fêmur submetido à técnica de reforço com polimetilmetacrilato (PMMA) em forma de X. Métodos: Foram utilizados 15 fêmures sintéticos, com densidade de 10 PCF da Nacional®, divididos nos grupos DX, com 5 unidades submetidas ao reforço com PMMA, e DP com 10 unidades, avaliados com sua integridade intacta. Foram analisados o volume de PMMA necessário, os valores da carga máxima e a energia absorvida até a fratura por meio de ensaio mecânico estático de flexão, simulando queda sobre o trocanter maior. Resultados: Foram usados em média 6 ml de PMMA para a modelagem do reforço em X e observou-se que o grupo DX apresentou carga máxima (mediana = 1553 N; p = 0,005) e energia absorvida até fratura (mediana = 9,7 J; p = 0,050) significativamente maior que o grupo DP (mediana = 905 N e 6,6 J). Conclusão: O reforço em X da extremidade proximal de fêmures sintéticos apresentou incremento estatisticamente significativo da carga máxima e energia absorvida até a fratura no ensaio mecânico em comparação com o grupo controle. Nível de evidência III, Estudo experimental.
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OBJECTIVES: To compare intracapsular (IC) and extracapsular (EC) hip fractures (HIF) in elderly patients in order to determine if they are different pathologies. SUBJECTS AND METHODS: Longitudinal, observational, descriptive, analytical prospective design, using a non-probabilistic sample from a full sample collection with 647 subjects (male and female), of 60 or more years old, admitted with HIF to the Department of Orthopedics and Traumatology of the Hospital, between January 1, 2010 and December 31, 2012. Follow-up was for 1 year post HIF. Socio-demographic, etiological, developmental, therapeutic and prognostic variables are compared. RESULTS: This is the first study on this subject with Latin American population. EC HIF incidence was superior to IC, contrary to that published in European/American populations. There are significant differences in etiological variables (χ(2)=6.34, p<0.042), with traumatic etiology in EC and non-traumatic in IC. There are also differences in therapeutic interventions performed (osteosynthesis for EC, arthroplasty for IC), with the decision on not to operate being lower in IC (both p<0.0000). The variables associated with the decision on not to perform surgery are age, etiology and postoperative mortality. DISCUSSION: The results are similar to other studies, adding the IC association with non-traumatic origin, in particular the trend of statistical association between IC and non-primary osteoporotic pathology (neoplasms, renal osteodystrophy, primary hyperparathyroidism). A further analysis was performed on the differences between Latin American and European/American populations in the incidence of either type of HIF. There are important etiological and therapeutic differences between IC and EC HIF; therefore it would be advisable to consider them as distinct disease entities.