Journal of Pediatric Orthopaedics-Part B最新文献

{"title":"Pelvic fixation in pediatric spinal fusion for neuromuscular scoliosis is associated with increased short-term complications but comparable long-term outcomes.","authors":"Yoli Meydan, Gregory I Sacks, Ryan S Lebens, James M Barsi","doi":"10.1097/BPB.0000000000001377","DOIUrl":"10.1097/BPB.0000000000001377","url":null,"abstract":"<p><p>Pelvic fixation is frequently used in posterior spinal fusion for neuromuscular scoliosis (NMS) to improve alignment and construct stability, particularly with significant pelvic obliquity. However, concerns remain regarding its association with increased surgical complexity and postoperative morbidity. This study compared short- and long-term postoperative outcomes between pediatric NMS patients who underwent posterior spinal fusion with and without pelvic fixation. A retrospective cohort study was conducted using the TriNetX Research Network, a federated database aggregating deidentified electronic health records from 106 healthcare organizations. Pediatric patients (≤21 years) with NMS who underwent posterior spinal fusion with or without pelvic fixation were identified. Before matching, 985 patients had undergone pelvic fixation, and 1492 had not. Following 1 : 1 propensity score matching, 592 matched pairs were retained for analysis. Matching controlled for differences in demographics, comorbidities, number of vertebral levels fused, and neuromuscular diagnosis. Postoperative complications were assessed at two time windows: short-term (1-365 days) and long-term (≥365 days). Pelvic fixation was associated with significantly higher short-term complication rates, including postoperative infections and wound breakdown. Mortality did not differ significantly between groups in either follow-up period. No statistically significant differences were observed in long-term complication rates, including pseudoarthrosis, revision surgery, and additional instrumentation. Pelvic fixation in pediatric posterior spinal fusion for NMS is associated with increased short-term morbidity, particularly wound complications and infections, which can affect recovery. Long-term outcomes, including hardware failure, pseudarthrosis, and revision, were comparable between groups. Careful perioperative management and counseling are essential when pelvic fixation is planned.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":"523-532"},"PeriodicalIF":0.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148347226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intraosseous 'Synthetic Teretization' in the absence of ligamentum teres: surgical technique and early results.","authors":"Carlos Sarassa, Simón Aristizábal, Juan José García, Daniel Quintero, Roiman Mejía, Ana Milena Herrera Torres","doi":"10.1097/BPB.0000000000001385","DOIUrl":"10.1097/BPB.0000000000001385","url":null,"abstract":"<p><p>Achieving stable, concentric reduction in high-grade developmental dysplasia of the hip (DDH) remains challenging, particularly in older children or when the ligamentum teres is absent. Our previously described teretization technique enhances stability through intraosseous ligamentum teres ligamentodesis, but cannot be applied directly in such cases. We describe a synthetic variation using a button-suture-button construct to replicate ligamentum teres function and report early outcomes. We conducted a prospective case series of pediatric patients with International Hip Dysplasia Institute classification (IHDI) grade III-IV DDH and intraoperatively confirmed absence of the ligamentum teres. Open reduction with intraosseous femoral tunneling and synthetic teretization was performed, combined with femoral and pelvic osteotomies. The construct was tensioned to maintain concentric reduction without overconstraint. Clinical outcomes included hip stability, range of motion, McKay score, pain, and complications. Radiographic assessment included IHDI and Severin classification, acetabular index, and avascular necrosis. Nine hips in eight female patients, with a median age of 24 months, underwent synthetic teretization. At a median 23-month follow-up, all hips remained stable, painless, and without functional limitation. Eight hips achieved postoperative IHDI type I and one type II. Among patients aged 4 years or older at final follow-up, all hips were Severin grade I. No redislocation, infection, growth arrest, avascular necrosis, or hardware-related complications occurred. McKay scores were excellent in seven hips and good in two. Two hips in one patient developed acetabular graft resorption after Dega osteotomy and were successfully revised. Synthetic teretization is a feasible stabilizing option for DDH when the native ligamentum teres is absent.</p><p><strong>Level of evidence: </strong>Level IV - Therapeutic case series. This study evaluates a novel surgical technique in a series of patients with congenital hip dislocation without a control group.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":"554-561"},"PeriodicalIF":0.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148425972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiological and clinical outcomes following pelvic support osteotomy with limb length equalization in children.","authors":"Vikaas Ethanur Thuppale, Arulmurugan Arikrishnan, Jonathan Reddy, Abhay Gahukamble, Thomas Palocaren","doi":"10.1097/BPB.0000000000001394","DOIUrl":"10.1097/BPB.0000000000001394","url":null,"abstract":"<p><p>Pelvic support osteotomy (PSO), when done in children, is subject to remodeling. This study aimed to assess the extent of remodeling at the osteotomy site and functional outcome post-PSO. A total of 28 patients were selected with a minimum follow-up of 2 years. PSO was combined with limb length equalization procedures including distal femoral lengthening, epiphysiodesis, or shoe raise, as indicated, because all patients had limb length discrepancy as part of their underlying pathology. The valgus osteotomy angle incorporated into the proximal femur was measured on the immediate postoperative standardized pelvis anteroposterior X-ray and at serial follow-ups. All observations were made by two observers. Functional outcome assessment was done with the preoperative and 2-year postoperative Harris Hip scores. Twenty-eight children with a mean age of 11.8 years (range: 6-16 years) were included in the study. The overall mean reduction in osteotomy angle was 2, 6.3, and 11° at 3 months, 1 year, and 2 years follow-ups, respectively. Children less than or equal to 12 years of age had a mean reduction of 12.4° compared with 9.3° in children more than 12 years of age; males had a mean reduction of 12.5° compared with 9° in females, at 2-year follow-up. The mean Harris Hip scores were 57.71 and 88.79, preoperative and 2-year postoperative, respectively. PSO combined with limb length equalization provides good functional improvement in children with severe postseptic sequelae of the hip. However, significant osteotomy remodeling may compromise long-term correction and necessitate repeat procedures, particularly in younger children, highlighting the importance of careful patient selection.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":"592-598"},"PeriodicalIF":0.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter to the editor regarding 'Naviculectomy combined with \"à la carte\" soft-tissue releases: is it a practical solution for congenital vertical talus in adolescence?'","authors":"Tamer A El-Sobky, Ahmad S Aly","doi":"10.1097/BPB.0000000000001391","DOIUrl":"https://doi.org/10.1097/BPB.0000000000001391","url":null,"abstract":"","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":"35 6","pages":"617-618"},"PeriodicalIF":0.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149082644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Screw start point and orthogonal relationship to the physis do not impact clinical outcomes for in-situ fixation of slipped capital femoral epiphysis.","authors":"Hady H Eltayeby, John W Stelzer, Lisa Tamburini, Mark C Lee","doi":"10.1097/BPB.0000000000001382","DOIUrl":"10.1097/BPB.0000000000001382","url":null,"abstract":"<p><p>In-situ screw fixation (ISSF) is the gold standard for treatment of slipped capital femoral epiphysis (SCFE). While central screw placement within the epiphysis is known to reduce the risk of intra-articular penetration, the impact of the screw starting point on the proximal femur and the resulting screw trajectory relative to the proximal femoral physis on radiographic or clinical outcomes remains unclear. This study evaluated whether screw starting point or inclination affects outcomes following ISSF. A retrospective review was performed of SCFE patients treated with ISSF at a single institution between 2008 and 2023. Demographic data, postoperative hip pain, early complications, and reoperations were recorded. Radiographic parameters included screw starting point, screw inclination angles, Southwick angles, number of threads crossing the physis, and epiphyseal screw position. Screw starting points were either anterior screw starting point (ASSP) or lateral screw starting point (LSSP). Outcomes were compared between groups. A total of 177 patients had a mean follow-up of 36 months. ASSP was identified in 83 hips and LSSP in 94 hips. The ASSP group demonstrated a more orthogonal trajectory on both anteroposterior (AP) and lateral views ( P  < 0.05). The middle third of the epiphysis was engaged more frequently on AP and lateral radiographs in the LSSP group. No significant differences were found in hip pain, complication rates, or reoperations between groups. Although ASSP yields a more orthogonally placed screw relative to the proximal femoral physis compared with LSSP, the overall screw starting point and the orthogonal relationship of the screw to the physis do not impact clinical outcomes or reoperation rate.</p><p><strong>Level of evidence: </strong>Level IV.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":"562-566"},"PeriodicalIF":0.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148438695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between serum vitamin D levels and pediatric distal radius fractures: a case-control study.","authors":"Mohammad Hadi Gerami, Amin Nasr, Saeid Alaei, Amir Hossein Rajabi, Sajjad Toofani, Seiied Hossein Heidari, Masoumeh Pourmokhtari","doi":"10.1097/BPB.0000000000001411","DOIUrl":"https://doi.org/10.1097/BPB.0000000000001411","url":null,"abstract":"<p><p>This study evaluated whether serum vitamin D levels are associated with distal radius fractures in children. In this case-control study, pediatric patients with confirmed distal radius fractures (cases) were compared to children visiting an orthopedic clinic for routine checks or minor muscular pain (controls). Serum vitamin D, phosphorus, and calcium levels were analyzed. We enrolled 98 children (mean age: 8.2 ± 2.6 years). Overall, 87.8% had serum 25-hydroxyvitamin D [25(OH)D] concentrations below 30 ng/ml, with a cohort mean of 22.04 ± 7.35 ng/ml. No statistically significant differences were found between the case and control groups regarding serum vitamin D (P = 0.806), calcium, or phosphorus levels. Logistic regression confirmed none of these metabolic markers were significantly associated with fracture incidence. Serum vitamin D levels were not associated with pediatric distal radius fractures in this population. The generally low 25(OH)D concentrations observed in both groups suggest that other factors may have a greater role in fracture risk. The level of evidence is III.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149240311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond surgery: a scoping review of pharmaceutical approaches in treating congenital pseudarthrosis of the tibia.","authors":"Arkesh Madegowda, Sitanshu Barik, Varun Garg, Anil Agarwal","doi":"10.1097/BPB.0000000000001408","DOIUrl":"https://doi.org/10.1097/BPB.0000000000001408","url":null,"abstract":"<p><p>Congenital pseudarthrosis of the tibia (CPT) remains one of the challenging conditions, with high rates of nonunion and refracture despite advances in surgical technique. Pharmacologic and biologic adjuncts have been introduced to enhance bone healing, but their role is incompletely defined. This scoping review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidance and a Population-Concept-Context framework. PubMed, Scopus, Embase, and Web of Science were searched till October 2025 for clinical studies using pharmacologic or biologic agents in CPT. Eligible designs included trials, cohorts, case series, and case reports reporting union-related outcomes. Thirteen studies published between 2006 and 2025 were included. Bone morphogenetic protein 2 (BMP-2) was evaluated in seven studies and BMP-7/OP-1 in three; three of these studies also used bisphosphonates as co-therapy with BMP, while one investigated mesenchymal stromal cell transplantation. Sample sizes ranged from two to 39, with mean follow-up of approximately 2-7 years. Contemporary BMP-2-based cross-union protocols, often combined with bisphosphonates, have reported near-100% union within 3-9 months and markedly reduced refracture rates. Earlier BMP-7 series and single-agent BMP applications produced more modest and variable union rates, while the mesenchymal stem cell pilot demonstrated histologic repair without mechanical union. Complications were infrequent but long-term safety and growth-plate effects remain uncertain. Pharmacologic adjuncts, particularly BMP-2-based cross-union constructs combined with antiresorptive therapy, show promising structural outcomes in CPT. However, the supporting evidence is derived largely from small, specialized case series without robust comparative data, and should, therefore, be interpreted with caution.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149217257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Subperiosteal hematoma of the ilium in adolescent athletes with acute groin pain: clinical and MRI features of a radiograph-occult injury pattern.","authors":"Shinsuke Sakoda, Kouichi Kajiwara, Riki Nagaoka, Kimiaki Kawano","doi":"10.1097/BPB.0000000000001404","DOIUrl":"https://doi.org/10.1097/BPB.0000000000001404","url":null,"abstract":"<p><p>Subperiosteal hematoma of the ilium is an uncommon MRI finding in young athletes with acute groin pain and is frequently occult on plain radiographs. This study aimed to characterize its clinical presentation, MRI findings, associated injuries, and return-to-sport outcomes. This retrospective single-center case series included athletes aged ≤22 years who underwent MRI for acute sports-related groin pain with negative or inconclusive radiographs between 2017 and 2025. Patients meeting predefined MRI criteria for subperiosteal hematoma of the ilium were identified, and clinical, imaging, and outcome data were analyzed descriptively. Twenty of 91 patients (22.0%) met the MRI criteria. Their mean age was 13.9 ± 1.5 years, 19 (95%) were male, and 18 (90%) had open physes. Periosteal elevation was present in all patients, and 19 (95%) demonstrated a predominantly subperiosteal fluid collection, most commonly with a lentiform configuration. Associated anterior inferior iliac spine avulsion injury or intramuscular iliacus injury was identified in 10 patients (50%). All patients were managed nonoperatively and returned to unrestricted sports participation after progressive rehabilitation at a mean of 4.5 ± 2.2 weeks. Subperiosteal hematoma of the ilium is a reproducible MRI finding in predominantly skeletally immature athletes with acute sports-related groin pain and negative or inconclusive radiographs. Recognition of periosteal elevation with a predominantly subperiosteal fluid collection may facilitate diagnosis of this radiograph-occult injury pattern. Although the underlying injury mechanism remains hypothetical, prospective studies are needed to clarify its clinical significance.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preoperative ultrasound in pediatric supracondylar fracture-related nerve injuries: intraoperative correlation in a tertiary referral retrospective case series.","authors":"Amin Abukar, Pablo Alfonso Palanca, Nimalesh Yogarajah, Kapil Sugand, Ian Pressney, Anna Panagiotidou, Marco Sinisi, Ashley Simpson, Michael Fox","doi":"10.1097/BPB.0000000000001396","DOIUrl":"https://doi.org/10.1097/BPB.0000000000001396","url":null,"abstract":"<p><p>Nerve palsy is a recognized complication of paediatric supracondylar humeral fractures. Most injuries recover spontaneously, a subset require surgical exploration, and identifying those who may benefit from intervention remains challenging. High-resolution ultrasound has emerged as a potential adjunct for assessing nerve injury, although its utility in this setting remains incompletely defined. A retrospective case series was conducted at a tertiary peripheral nerve injury center. Children less than 16 years with persistent supracondylar fracture-related nerve palsy who underwent preoperative ultrasound and surgical exploration between 2018 and 2024 were included. Ultrasound findings were categorized as structural abnormality, compression/tethering, neuroma/swelling, or entrapment and were compared with intraoperative findings. Analysis was descriptive, focusing on ultrasound detection of nerve abnormality and concordance with surgical findings. Twenty-two patients were included (mean age: 7 years). All had surgically confirmed nerve pathology. Ultrasound demonstrated nerve abnormality in 21 out of 22 cases (95%). Compression/tethering was the most common finding (18/22), followed by structural abnormality (14/22), neuroma/swelling (7/22), and entrapment (2/22). Intraoperatively, structural abnormalities were identified in 17 cases, compression/tethering in 21, neuroma in 3, and entrapment in 4. Ultrasound frequently identified nerve abnormality but demonstrated variable concordance with intraoperative findings, including overestimation of neuroma (7 vs. 3 cases) and under-detection of entrapment (2 vs. 4 cases). Preoperative ultrasound frequently demonstrated abnormal nerve features in children with persistent palsy following supracondylar humeral fracture. However, its limited concordance in characterizing specific pathology restricts its role as a standalone decision-making tool. Ultrasound findings should be interpreted alongside clinical assessment when considering surgical exploration.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149168988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A modified Dunn osteotomy without surgical hip dislocation for severe slipped capital femoral epiphysis: mid-term outcomes from a case series.","authors":"Zhengxiao Ouyang, Zhe Fu, Xia Chen, Lu Wang, Zhongli Zhang, Tang Liu","doi":"10.1097/BPB.0000000000001407","DOIUrl":"https://doi.org/10.1097/BPB.0000000000001407","url":null,"abstract":"<p><p>Severe slipped capital femoral epiphysis (SCFE) remains challenging to manage because residual deformity after in situ fixation may predispose patients to femoroacetabular impingement and early osteoarthritis, whereas corrective procedures such as modified Dunn osteotomy via surgical hip dislocation carry a risk of avascular necrosis. We aim to evaluate mid-term outcomes of a modified Dunn osteotomy performed without surgical hip dislocation for SCFE. We retrospectively reviewed 11 patients (14 hips) with severe SCFE treated with modified Dunn osteotomy without surgical hip dislocation between 2015 and 2022. The mean follow-up was 56.0 ± 29.8 months. Clinical outcomes were evaluated using the Harris Hip Score and Western Ontario and McMaster Universities Osteoarthritis Index, while radiographic outcomes included slip angle, α angle, and Tönnis grade. The mean preoperative slip and α angles were 69.3 ± 8.2 and 86.6 ± 18.8°, respectively, improving significantly to 8.5 ± 5.5 and 32.5 ± 7.5° at the latest follow-up. All hips remained Tönnis grade 0 without radiographic progression of osteoarthritis. The mean Harris Hip Score and Western Ontario and McMaster Universities Osteoarthritis Index scores were 95.5 ± 10.5 and 94.5 ± 11.5, respectively. One patient with acute unstable SCFE developed avascular necrosis; no cases of femoroacetabular impingement or implant-related complications were observed. Modified Dunn osteotomy without surgical hip dislocation provided substantial deformity correction and favorable mid-term functional and radiographic outcomes. Avoiding hip dislocation while preserving the retinacular soft-tissue flap and ligamentum teres may help protect femoral head vascularity.</p>","PeriodicalId":50092,"journal":{"name":"Journal of Pediatric Orthopaedics-Part B","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149139016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}