Revista Brasileira de Ortopedia最新文献

{"title":"Functional Outcomes after Surgical Decompression for Tarsal Tunnel Syndrome.","authors":"Marco Antonio Casares Tamayo, Jonathan Antonio Casares Castellanos, Francisco Endara Urresta, Carlos Peñaherrera Carrillo, Alejandro Barros Castro","doi":"10.1055/s-0046-1819577","DOIUrl":"10.1055/s-0046-1819577","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the functional outcomes of surgical decompression for tarsal tunnel syndrome (TTS) and to explore the clinical relevance of diagnostic tests such as electromyography (EMG), magnetic resonance imaging (MRI), and ultrasound.</p><p><strong>Methods: </strong>We performed a retrospective single-center study of 15 patients with clinically diagnosed TTS who underwent open decompression (2015-2022). All had failed conservative management and completed ≥ 12 months of follow-up. Preoperative evaluation combined clinical exams with at least one confirmatory test (EMG, MRI, or ultrasound). Outcomes included the American Orthopaedic Foot and Ankle Society's (AOFAS) ankle-hindfoot score (primary), Visual Analogue Scale (VAS) pain, minimal clinically important difference (MCID), and complications. The analysis used paired <i>t</i> -tests, Cohen's d, and analysis of covariance (ANCOVA), adjusting for baseline AOFAS, age, symptom duration, and EMG results.</p><p><strong>Results: </strong>The mean age was 50.4 ± 15.6 years; and 53.3% of the patients were female. Symptom duration averaged 14.7 ± 7.2 months. The EMG scans were positive in 66.7%, MRI in 60.0%, and ultrasound in 53.3%. The AOFAS score improved from 36.6 ± 7.1 to 78.1 ± 19.9 at 12 months ( <i>p</i>  < 0.001; d = 2.26), and VAS decreased from 7.0 ± 0.6 to 3.4 ± 1.3 ( <i>p</i>  < 0.001; d = -3.72). The MCID was achieved in 80% for AOFAS and 100% for VAS. Two minor complications (13.3%) occurred, without need for reoperations. The ANCOVA suggested trends for baseline severity and chronicity without significance.</p><p><strong>Conclusion: </strong>Surgical decompression is a safe and effective treatment for TTS, providing significant pain relief and functional improvement with low complication rates. Early intervention shows a trend toward better outcomes, warranting further prospective studies.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00461819577"},"PeriodicalIF":0.5,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13090096/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147723688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Functional Outcomes after Surgical Decompression for Tarsal Tunnel Syndrome].","authors":"Marco Antonio Casares Tamayo, Jonathan Antonio Casares Castellanos, Francisco Endara Urresta, Carlos Peñaherrera Carrillo, Alejandro Barros Castro","doi":"10.1055/s-0046-1819578","DOIUrl":"10.1055/s-0046-1819578","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the functional outcomes of surgical decompression for tarsal tunnel syndrome (TTS) and to explore the clinical relevance of diagnostic tests such as electromyography (EMG), magnetic resonance imaging (MRI), and ultrasound.</p><p><strong>Methods: </strong>We performed a retrospective single-center study of 15 patients with clinically diagnosed TTS who underwent open decompression (2015-2022). All had failed conservative management and completed ≥ 12 months of follow-up. Preoperative evaluation combined clinical exams with at least one confirmatory test (EMG, MRI, or ultrasound). Outcomes included the American Orthopaedic Foot and Ankle Society's (AOFAS) ankle-hindfoot score (primary), Visual Analogue Scale (VAS) pain, minimal clinically important difference (MCID), and complications. The analysis used paired <i>t</i> -tests, Cohen's d, and analysis of covariance (ANCOVA), adjusting for baseline AOFAS, age, symptom duration, and EMG results.</p><p><strong>Results: </strong>The mean age was 50.4 ± 15.6 years; and 53.3% of the patients were female. Symptom duration averaged 14.7 ± 7.2 months. The EMG scans were positive in 66.7%, MRI in 60.0%, and ultrasound in 53.3%. The AOFAS score improved from 36.6 ± 7.1 to 78.1 ± 19.9 at 12 months ( <i>p</i>  < 0.001; d = 2.26), and VAS decreased from 7.0 ± 0.6 to 3.4 ± 1.3 ( <i>p</i>  < 0.001; d = -3.72). The MCID was achieved in 80% for AOFAS and 100% for VAS. Two minor complications (13.3%) occurred, without need for reoperations. The ANCOVA suggested trends for baseline severity and chronicity without significance.</p><p><strong>Conclusion: </strong>Surgical decompression is a safe and effective treatment for TTS, providing significant pain relief and functional improvement with low complication rates. Early intervention shows a trend toward better outcomes, warranting further prospective studies.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00461819578"},"PeriodicalIF":0.5,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13090095/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147723685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Vertebral Compression Fractures: Factors Predicting Failure of Vertebral Augmentation Kyphoplasty].","authors":"Joana Araújo de Azevedo, Vasco Campos, Paulo Gil Ribeiro, Nuno Oliveira, Pedro Varanda, Bruno Direito-Santos","doi":"10.1055/s-0046-1817023","DOIUrl":"10.1055/s-0046-1817023","url":null,"abstract":"<p><strong>Objective: </strong>To identify predictors of kyphoplasty failure in patients with vertebral compression fractures (VCFs), which may assist clinical decision-making and optimize therapeutic outcomes.</p><p><strong>Methods: </strong>The present retrospective cohort study included patients with VCFs treated by kyphoplasty, categorized based on the presence or absence of treatment failure. Forty records were evaluated with a minimum follow-up time of 6-months, and 6 cases were excluded because they did not meet the inclusion criteria. Variables analyzed included age, sex, time to surgery, fracture level, AO Spine Injury Classification, and osteoporotic fractures (OF) score. Radiological parameters such as vertebral body height, regional and segmental kyphotic angles were measured pre- and postoperatively. Additionally, we assessed the proportion of vertebral body occupied by cement, with emphasis on its anterior and posterior distribution.</p><p><strong>Results: </strong>Among 34 patients, 20 (58.8%) had successful outcomes, meaning absence of failure criteria until the last follow-up (group 1), while 14 (41.2%) experienced failure (group 2). Failure was defined based on the presence of adjacent vertebral fracture, vertebral re-collapse, or recurrence of incapacitating pain. Kyphoplasty led to significant improvements in vertebral body height and kyphotic angles. In regression analysis, only the posterior cement distribution percentage emerged as an independent predictor of failure (adjusted odds ratio [OR] = 1.684; <i>p</i>  = 0.012). Increased posterior vertebral height gain showed a trend toward failure, whereas anterior height gain appeared protective.</p><p><strong>Conclusions: </strong>A higher percentage of cement located posteriorly within the vertebral body is associated with increased kyphoplasty failure risk. These findings highlight the importance of cement distribution patterns in surgical planning for VCFs.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00461817023"},"PeriodicalIF":0.5,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016951/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147522102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vertebral Compression Fractures: Factors Predicting Failure of Vertebral Augmentation Kyphoplasty.","authors":"Joana Araújo de Azevedo, Vasco Campos, Paulo Gil Ribeiro, Nuno Oliveira, Pedro Varanda, Bruno Direito-Santos","doi":"10.1055/s-0046-1817022","DOIUrl":"10.1055/s-0046-1817022","url":null,"abstract":"<p><strong>Objective: </strong>To identify predictors of kyphoplasty failure in patients with vertebral compression fractures (VCFs), which may assist clinical decision-making and optimize therapeutic outcomes.</p><p><strong>Methods: </strong>The present retrospective cohort study included patients with VCFs treated by kyphoplasty, categorized based on the presence or absence of treatment failure. Forty records were evaluated with a minimum follow-up time of 6-months, and 6 cases were excluded because they did not meet the inclusion criteria. Variables analyzed included age, sex, time to surgery, fracture level, AO Spine Injury Classification, and osteoporotic fractures (OF) score. Radiological parameters such as vertebral body height, regional and segmental kyphotic angles were measured pre- and postoperatively. Additionally, we assessed the proportion of vertebral body occupied by cement, with emphasis on its anterior and posterior distribution.</p><p><strong>Results: </strong>Among 34 patients, 20 (58.8%) had successful outcomes, meaning absence of failure criteria until the last follow-up (group 1), while 14 (41.2%) experienced failure (group 2). Failure was defined based on the presence of adjacent vertebral fracture, vertebral re-collapse, or recurrence of incapacitating pain. Kyphoplasty led to significant improvements in vertebral body height and kyphotic angles. In regression analysis, only the posterior cement distribution percentage emerged as an independent predictor of failure (adjusted odds ratio [OR] = 1.684; <i>p</i>  = 0.012). Increased posterior vertebral height gain showed a trend toward failure, whereas anterior height gain appeared protective.</p><p><strong>Conclusions: </strong>A higher percentage of cement located posteriorly within the vertebral body is associated with increased kyphoplasty failure risk. These findings highlight the importance of cement distribution patterns in surgical planning for VCFs.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00461817022"},"PeriodicalIF":0.5,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016952/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147522093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Primary Arthroscopic Repair of the Anterior Cruciate Ligament with Femoral Fixation Using an Adjustable EndoButton and Dynamic Reinforcement with High-Strength Suture].","authors":"Antonio Carlos Moscon, Fabrício Luz Cardoso, Daniel Rocha de Almeida Braga, Claudio Gattás","doi":"10.1055/s-0045-1814431","DOIUrl":"10.1055/s-0045-1814431","url":null,"abstract":"<p><p>Primary anterior cruciate ligament (ACL) repair has reemerged as an alternative in selected cases thanks to advances in arthroscopic techniques and the development of modern fixation devices. The present paper describes the arthroscopic ACL repair technique with femoral fixation using an adjustable EndoButton (Smith & Nephew) combined with dynamic reinforcement using a high-strength suture. This technique is primarily indicated for acute proximal ruptures (Sherman et al. types I and II), which present a good ligament remnant and healing potential. The procedure aims to preserve the original anatomy and proprioception, reduce the morbidity associated with graft harvesting, and maintain future reconstruction options. The technique involves suturing the ligament stump, using adjustable femoral fixation, and applying internal bracing to provide additional biomechanical stability. The proposed postoperative protocol, based on the rationale of stability, prioritizes early mobilization, progressive weight-bearing, and structured rehabilitation. This approach represents a promising alternative for carefully-selected patients, especially young athletes and skeletally-immature subjects, provided the indications and limitations of the technique are respected. Long-term studies are needed to consolidate the clinical efficacy of this technique.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00451814431"},"PeriodicalIF":0.5,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13012847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147514506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Primary Arthroscopic Repair of the Anterior Cruciate Ligament with Femoral Fixation Using an Adjustable EndoButton and Dynamic Reinforcement with High-Strength Suture.","authors":"Antonio Carlos Moscon, Fabrício Luz Cardoso, Daniel Rocha de Almeida Braga, Claudio Gattás","doi":"10.1055/s-0045-1814430","DOIUrl":"10.1055/s-0045-1814430","url":null,"abstract":"<p><p>Primary anterior cruciate ligament (ACL) repair has reemerged as an alternative in selected cases thanks to advances in arthroscopic techniques and the development of modern fixation devices. The present paper describes the arthroscopic ACL repair technique with femoral fixation using an adjustable EndoButton (Smith & Nephew) combined with dynamic reinforcement using a high-strength suture. This technique is primarily indicated for acute proximal ruptures (Sherman et al. types I and II), which present a good ligament remnant and healing potential. The procedure aims to preserve the original anatomy and proprioception, reduce the morbidity associated with graft harvesting, and maintain future reconstruction options. The technique involves suturing the ligament stump, using adjustable femoral fixation, and applying internal bracing to provide additional biomechanical stability. The proposed postoperative protocol, based on the rationale of stability, prioritizes early mobilization, progressive weight-bearing, and structured rehabilitation. This approach represents a promising alternative for carefully-selected patients, especially young athletes and skeletally-immature subjects, provided the indications and limitations of the technique are respected. Long-term studies are needed to consolidate the clinical efficacy of this technique.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00451814430"},"PeriodicalIF":0.5,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13012846/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147514480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reply to the Letter to the Editor regarding the Article \"Effects of Intra-articular Bone Marrow Aspirate Infiltration in the Treatment of Knee Osteoarthritis: A Clinical Study Comparing BMA versus Corticosteroid and Genicular Block.\" <i>Rev Bras Ortop</i> 2025;60(2):s00451809512. DOI: 10.1055/s-0045-1809512.","authors":"Renata Clazzer, Dilamar Moreira Pinto, Mariana Valois de Aquino Krause, Tale Lucas Vieira Rolim, Ricardo Lyra de Oliveira, Diego Ariel de Lima","doi":"10.1055/s-0046-1817131","DOIUrl":"10.1055/s-0046-1817131","url":null,"abstract":"","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00461817131"},"PeriodicalIF":0.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13002293/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147499764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Réplica à carta ao editor referente ao artigo: “Efeitos da infiltração intra-articular de aspirado de medula óssea no tratamento da osteoartrite de joelho: Estudo clínico comparando BMA <i>versus</i> corticosteroide e bloqueio genicular”. <i>Rev Bras Ortop</i> 2025;60(2):s00451809512. DOI: 10.1055/s-0045-1809512.","authors":"Renata Clazzer, Dilamar Moreira Pinto, Mariana Valois de Aquino Krause, Tale Lucas Vieira Rolim, Ricardo Lyra de Oliveira, Diego Ariel de Lima","doi":"10.1055/s-0046-1817132","DOIUrl":"10.1055/s-0046-1817132","url":null,"abstract":"","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"61 1","pages":"s00461817132"},"PeriodicalIF":0.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13002284/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147499720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Trifurcated Anatomy of The Upper Trunk of The Brachial Plexus: Suprascapular Nerve, Posterior Division, and Anterior Division.","authors":"Junot Hortêncio de Souza Neto, Bernardo Couto Neto, André Bastos Duarte Eiras, Renato Harley Santos Botelho, Lucas Gonçalves Daflon, Marco Aurélio Rodrigues da Fonseca Passos","doi":"10.1055/s-0045-1814116","DOIUrl":"10.1055/s-0045-1814116","url":null,"abstract":"<p><strong>Objective: </strong>To provide a comprehensive depiction of the anatomy of the upper trunk and its distal trifurcation through the dissection of brachial plexuses obtained from adult cadavers.</p><p><strong>Methods: </strong>We dissected 40 brachial plexuses from adult cadavers preserved using a unique formalin-based technique developed and used by the Anatomy Department of our institution. Bilateral dissection was performed on 20 cadavers placed in the dorsal decubitus position with accurate arm adduction. While the primary focus was on the upper trunk's anatomy, a thorough exploration of the entire brachial plexus was achieved through an extended incision.</p><p><strong>Results: </strong>The posterior division of the upper trunk was consistently located between the suprascapular nerve and the anterior division. In 22 (55%) of the dissected brachial plexuses, the suprascapular nerve originated from the proximal region of the posterior division of the upper trunk, immediately after its bifurcation. For the remaining 18 (45%), the suprascapular nerve originated directly from the upper trunk.</p><p><strong>Conclusion: </strong>The distal trifurcation of the upper trunk of the brachial plexus includes the suprascapular nerve and the posterior and anterior divisions of the upper trunk.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"60 6","pages":"s00451814116"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12753167/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145879078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Use of Patch Augmentation in Rotator Cuff Repair: A Systematic Review Protocol].","authors":"Victor Peyneau Poncio, Bianca Carolina Bankhardt da Silva, Fabio Teruo Matsunaga, Nicola Archetti Netto, João Carlos Belloti, Marcel Jun Sugawara Tamaoki","doi":"10.1055/s-0045-1814405","DOIUrl":"10.1055/s-0045-1814405","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the effectiveness of using a graft for reinforcement in rotator cuff repair compared to no use, as well as the effectiveness of different types of grafts, considering healing and shoulder function as primary outcomes, through a systematic review and meta-analysis of randomized controlled trials (RCTs).</p><p><strong>Methods: </strong>We will conduct a systematic review of RCTs following the guidelines of the <i>Cochrane Handbook for Systematic Reviews of Interventions</i> and of the Preferred Reporting Items for Systematic reviews and Meta-Analyses for Protocols (PRISMA-P) statement. Only RCTs with adult participants comparing repair with a reinforcing graft versus the standard repair, or comparing different types of grafts, will be included. An electronic search will be conducted in the MEDLINE (PubMed), Cochrane Central Register of Controlled Trials (CENTRAL), Embase, and SciELO databases, as well as gray literature. Data management and extraction will be performed using a standardized form that will assess the characteristics of the studies, participants, and intervention, as well as the outcomes and methodological domains. The primary outcomes will be healing and shoulder functional assessment, and the secondary outcomes, pain, range of motion, adverse events, complications, quality of life, and cost-effectiveness. Risk of bias will be assessed with the Risk of Bias, version 2.0 (RoB 2.0), and the certainty of evidence, through the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. Descriptive, subgroup, and sensitivity analyses will be performed when applicable.</p><p><strong>Conclusion: </strong>The review is expected to consolidate evidence on the effectiveness of using a graft for reinforcement in rotator cuff repair. It has been registered in the International Prospective Register of Systematic Reviews (PROSPERO) under number 1106892.</p>","PeriodicalId":21536,"journal":{"name":"Revista Brasileira de Ortopedia","volume":"60 6","pages":"s00451814405"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12753174/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145879099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}