Orthopedics最新文献

{"title":"Erratum for \"Primary Total Ankle Replacement for Acute Comminuted Pilon Fractures in Older Adults: Proposed Indications and a Report of 29 Cases\".","authors":"","doi":"10.3928/01477447-20260805-01","DOIUrl":"https://doi.org/10.3928/01477447-20260805-01","url":null,"abstract":"","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":"49 4","pages":"e274"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796424","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":"Unilateral Biportal Endoscopic Diskectomy Versus Percutaneous Endoscopic Lumbar Diskectomy for Lumbar Disk Herniation: A Systematic Review and Meta-analysis.","authors":"Chen Wang, Weiyi Lin, Fenglang Li, Zhixing Lin, Yu Song, Peng Xiu","doi":"10.3928/01477447-20260625-01","DOIUrl":"10.3928/01477447-20260625-01","url":null,"abstract":"<p><strong>Background: </strong>This meta-analysis compared the clinical efficacy of unilateral biportal endoscopic diskectomy (UBE) and percutaneous endoscopic lumbar diskectomy (PELD) for lumbar disk herniation.</p><p><strong>Materials and methods: </strong>A systematic search of PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure, and Wanfang was conducted from inception to May 2025. Comparative studies in adults undergoing UBE or PELD were included. Outcomes included operative and recovery parameters, complications, reoperation, Macnab outcomes, visual analog scale (VAS) scores, Oswestry Disability Index (ODI), fluoroscopy exposure, and total cost. Pooled effects were calculated as mean differences or odds ratios with 95% confidence intervals. Prespecified subgroup analyses (PELD approach and operative level) and sensitivity analyses (leave-one-out/model switching) were performed. Clinical relevance was interpreted using commonly cited minimal clinically important difference thresholds for VAS and ODI.</p><p><strong>Results: </strong>A total of 25 studies involving 2,087 patients were included. Compared with PELD, UBE was associated with longer operative time, greater intraoperative blood loss, larger incisions, longer hospital stays, and higher hospitalization costs, but significantly fewer intraoperative fluoroscopy exposures. No significant differences were observed in complication or reoperation rates. Although some statistically significant differences were detected in early perioperative metrics, all between-group differences in VAS pain and ODI functional scores were far below the minimal clinically important difference thresholds, confirming clinically equivalent mid-term outcomes. Subgroup analyses identified that PELD approach and operative level were key contributors to between-study heterogeneity, and sensitivity analyses confirmed that our main conclusions remained stable.</p><p><strong>Conclusion: </strong>Both UBE and PELD are safe and effective minimally invasive strategies for lumbar disk herniation, with comparable clinical efficacy. PELD offers advantages in lower surgical trauma and cost effectiveness, whereas UBE reduces intraoperative radiation exposure. Surgical selection should be individualized based on patient pathology and surgeon expertise.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":"49 4","pages":"e275-e283"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796416","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":"Understanding One-year Mortality Rates and Comorbidity Burden in Older Adults Following Hip Fracture.","authors":"Chris Sun, Eric R Tecce, Kimberly Dong, Alec M Giakas, William Ryan, Asif M Ilyas","doi":"10.3928/01477447-20260608-01","DOIUrl":"10.3928/01477447-20260608-01","url":null,"abstract":"<p><strong>Background: </strong>Hip fractures impose substantial patient morbidity and burden to health care systems globally, with potentially high and variable 1-year mortality rates. To improve shared decision making when guiding treatment for patients, this study evaluated 1-year mortality rates following hip fractures in the older adult population using a large multicenter live database. The study goal was to determine the recent 1-year mortality rate with contemporary orthogeriatric care strategies.</p><p><strong>Materials and methods: </strong>A retrospective cohort study was conducted using the TriNetX Research Network. Patients aged 65 to 90 years with an incident hip fracture were identified, excluding those with same-day mortality or previous hip fractures. Cohorts were stratified by sex and 5-year age intervals. One-year all-cause mortality rates following hip fracture and Kaplan-Meier survival (KM) estimates, with log-rank tests, were calculated. Pre-fracture demographic and clinical characteristics were compared between those who succumbed within 1 year and those who survived beyond 1 year.</p><p><strong>Results: </strong>Among 197,222 included patients, the 1-year mortality rate was 11.6%, with an 86.7% KM estimate of survival. One-year mortality increased with age and was higher in men across all age strata. Patients with 1-year mortality demonstrated a higher baseline comorbidity burden, including neurocognitive, cardiovascular, metabolic, renal, hepatic, and pulmonary diseases and malignancies. Although women succumbing within 1 year had higher rates of certain neurocognitive and metabolic disorders, men had higher rates of chronic ischemic heart disease and chronic kidney disease.</p><p><strong>Conclusion: </strong>One-year mortality following hip fractures was approximately 12%. Continued monitoring and optimization of multidisciplinary orthogeriatric models and postoperative care may further improve outcomes and survival.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":" ","pages":"e284-e292"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148397237","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":"Intra-Articular Vancomycin Powder in Primary Total Knee Arthroplasty: A Retrospective Observational Study.","authors":"Kemal Şibar, Vedat Biçici, Ezgi Gizem Şibar, Yasin Erdoğan, Erkan Akgün, Hanife Uzar, Ahmet Firat","doi":"10.3928/01477447-20260615-01","DOIUrl":"10.3928/01477447-20260615-01","url":null,"abstract":"<p><strong>Background: </strong>Periprosthetic joint infection (PJI) is one of the most serious complications following total knee arthroplasty (TKA). Vancomycin powder has been proposed as a low-cost adjunct to reduce infection by providing high local antibiotic concentrations with minimal systemic exposure; however, clinical evidence remains inconsistent. This study aimed to evaluate the effect of intra-articular vancomycin powder on PJI, aseptic wound complications, and renal function in primary TKA.</p><p><strong>Materials and methods: </strong>Patients who underwent primary TKA between 2022 and 2024 with at least 1 year of follow-up were retrospectively analyzed. A total of 661 patients were included: 247 received 1 g intra-articular vancomycin powder and 414 served as controls. All procedures were performed with standardized perioperative protocols. Demographics, comorbidities, and high-risk status were recorded. Outcomes included PJI, aseptic wound complications, and acute kidney injury.</p><p><strong>Results: </strong>PJI occurred in 7 patients (1.1%): 6 in the control group (1.4%) and 1 in the vancomycin group (0.4%), with no significant difference (<i>P</i> = .266). Aseptic wound complications were observed in 28 patients (4.2%), including 20 control patients (4.8%) and 8 vancomycin patients (3.2%) (<i>P</i> = .326). Acute kidney injury occurred in 12 patients (1.8%), with comparable rates between groups (<i>P</i> = 1.000).</p><p><strong>Conclusion: </strong>Intra-articular vancomycin powder did not result in a statistically significant reduction in PJI rates, while demonstrating a favorable safety profile. Although safe, routine use may not provide additional measurable benefit in optimized surgical settings with low baseline infection rates. Larger, well-designed randomized trials are required to identify patient subgroups who may benefit from selective application.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":" ","pages":"e324-e329"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148318368","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":"Impact of Non-Tobacco Nicotine Dependence on Outcomes Following Arthroscopic Partial Meniscectomy.","authors":"Ankit Hirpara, Ansh Shah, Logan Good, Andrew Moyal, Davison Beenfeldt, James E Voos, Jacob G Calcei","doi":"10.3928/01477447-20260710-01","DOIUrl":"https://doi.org/10.3928/01477447-20260710-01","url":null,"abstract":"<p><strong>Background: </strong>Non-tobacco nicotine dependence (NTND) from products like electronic cigarettes and pouches is rapidly rising. Smoking can negatively impact outcomes following arthroscopic partial meniscectomy (APM), but literature on NTND is sparse. The purpose of this study was to compare outcomes following APM in patients with and without NTND.</p><p><strong>Materials and methods: </strong>The TriNetX database was queried to identify patients older than 18 years who underwent isolated primary APM. Patients were stratified into 2 cohorts based on NTND history and underwent 1:1 propensity score matching on demographics, substance use, and comorbidities. Outcomes included (1) postoperative complications and health care use within 90 days, (2) opioid prescriptions within 1 year, and (3) subsequent knee surgery within 2 years. Subgroup analyses compared ipsilateral revision meniscus surgery rates and opioid prescriptions in opioid-naive patients.</p><p><strong>Results: </strong>Within 90 days, patients with NTND (n = 9,594), compared to those without (n = 9,594), had higher rates of emergency department visits (<i>P</i> < .001), outpatient visits (<i>P</i> = .015), and pneumonia (<i>P</i> = .011). More patients with NTND were prescribed opioids at all time points within 1 year (<i>P</i> < .001), and they received more prescriptions starting at 1 month (all <i>P</i> ≤ .006). More opioid-naive patients with NTND were prescribed opioids starting at 1 month postoperatively (<i>P</i> < .05). Patients with NTND had higher rates of subsequent meniscus surgery at 1 year (<i>P</i> = .004) and 2 years (<i>P</i> < .001) but no differences in revision rates.</p><p><strong>Conclusion: </strong>NTND is associated with higher rates of health care use, complications, subsequent meniscus surgery, and opioid prescriptions, including among opioid-naive patients, following APM. Preoperative nicotine screening and patient education are warranted.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":"49 4","pages":"e359-e367"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796404","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":"Safety and Efficacy of Intra-Articular Injection of Umbilical Cord-Derived Extracellular Vesicles in Patients With Knee Osteoarthritis: A Retrospective Study.","authors":"Naomasa Yokota, Takeo Kambayashi, Yu Tanabe","doi":"10.3928/01477447-20260721-01","DOIUrl":"https://doi.org/10.3928/01477447-20260721-01","url":null,"abstract":"<p><strong>Background: </strong>Extracellular vesicles derived from the umbilical cord (UCEVs) have emerged as a potential biological therapy for knee osteoarthritis (KOA). However, their clinical efficacy remains unknown. The purpose of this study was to evaluate the safety and efficacy of intra-articular injections of umbilical cord stem cell-derived UC-EVs in patients with KOA.</p><p><strong>Materials and methods: </strong>A total of 29 patients (33 knees) with KOA received 6 intra-articular injections of UC-EVs (1 × 10¹¹ particles per dose) every 2 weeks. Clinical outcomes were assessed at 3, 6, and 12 months using the Knee Injury and Osteoarthritis Outcome Score (KOOS), visual analog scale (VAS), and Outcome Measures in Rheumatology and Osteoarthritis Research Society International (OMERACT-OARSI) responder criteria.</p><p><strong>Results: </strong>Significant improvements in all KOOS subscale scores and VAS for pain were observed at all follow-up time points compared with baseline (<i>P</i> < .01), with all scores exceeding predefined minimal clinically important difference thresholds. VAS for pain decreased by a mean of 38.8 ± 25.5 mm, and the greatest KOOS improvement was seen in quality of life (32.8 ± 21.9) and sport and recreation function (28.6 ± 25.2). The OMERACT-OARSI responder rate was 66.7% overall (22/33 knees), with rates of 83.3%, 66.7%, and 44.4% for Kellgren-Lawrence grades 2, 3, and 4, respectively. No serious adverse events were observed.</p><p><strong>Conclusion: </strong>Intra-articular injection of UC-EVs demonstrated meaningful clinical benefits in patients with KOA, including reductions in VAS pain scores and improvements across all KOOS domains. Patients with Kellgren-Lawrence grade 2 or 3 showed greater treatment responses compared with grade 4. These findings suggest that intra-articular UC-EVs therapy may represent a promising next-generation treatment option for KOA.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":"49 4","pages":"e351-e358"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796377","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":"Erratum for \"A Comparative Analysis of Suture-Button and InternalBrace Fixation for Purely Ligamentous Lisfranc Injuries\".","authors":"","doi":"10.3928/01477447-20260805-02","DOIUrl":"https://doi.org/10.3928/01477447-20260805-02","url":null,"abstract":"","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":"49 4","pages":"e292"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796393","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":"Comparative Outcomes of Lower Extremity Fractures in Patients With Type 1 and Type 2 Diabetes: A Retrospective Database Analysis.","authors":"Thomas E Olson, Christopher Hamad, Joshua Wiener, Trevor Lloyd, Jeannie Park, Autreen Golzar, Aliyah Walker, Rene Chun, John Adams, Nicholas Bernthal, Christopher Lee, William L Sheppard","doi":"10.3928/01477447-20260612-01","DOIUrl":"10.3928/01477447-20260612-01","url":null,"abstract":"<p><strong>Background: </strong>Diabetes mellitus (DM) is a major risk factor for adverse outcomes following orthopedic trauma. Although both type 1 (T1DM) and type 2 (T2DM) diabetes mellitus increase complication risk after lower extremity fracture fixation, their relative impacts remain poorly characterized.</p><p><strong>Materials and methods: </strong>We performed a retrospective cohort analysis to compare postoperative outcomes in patients with T1DM and T2DM who underwent surgical fixation of lower extremity fractures. Propensity score matching was performed within anatomical fracture subgroups based on age, sex, race, body mass index, hemoglobin A_1c, and nicotine dependence. Outcomes were compared using appropriate statistical tests and survival analysis.</p><p><strong>Results: </strong>A total of 10,464 patient-fracture encounters across 4 anatomic subgroups met inclusion criteria. After propensity score matching within each subgroup, 1,776 matched pairs (3,552 encounters) were analyzed. T1DM patients experienced higher rates of adverse outcomes compared to T2DM patients, with the greatest differences observed for infection (tibia: 7.3% vs 3.1%, <i>P</i> = .009; foot/ankle: 9.8% vs 1.8%, <i>P</i> < .001), amputation (femur: 2.9% vs 0.0%, <i>P</i> = .001; tibia: 2.6% vs 0.0%, <i>P</i> = .001), and mortality (hip: 21.8% vs 15.1%, <i>P</i> = .003; femur: 12.3% vs 4.4%, <i>P</i> < .001; tibia: 9.9% vs 2.5%, <i>P</i> < .001; foot/ankle: 7.5% vs 2.0%, <i>P</i> < .001). These risks appeared to increase distally, with the highest complication rates seen in the tibial and foot/ankle subgroups.</p><p><strong>Conclusions: </strong>T1DM confers a distinctly higher risk of infection, limb loss, and mortality following operative fixation of lower extremity fractures compared to T2DM, despite similar baseline characteristics after matching. These findings highlight the need for diabetes-subtype-specific perioperative management strategies to optimize outcomes in this high-risk population.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":" ","pages":"e317-e323"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148397121","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":"Examining the Statistical Fragility of Randomized Trials on Operative Versus Nonoperative Treatment of Acromioclavicular Joint Separation Using the Reverse Continuous Fragility Index.","authors":"Alyssa D Althoff, Udit Dave, Jesus E Cervantes, Eric Y Hu, Katherine G Kessler, Thomas E Moran","doi":"10.3928/01477447-20260611-01","DOIUrl":"10.3928/01477447-20260611-01","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to analyze nonsignificant, continuous outcomes and establish the reverse continuous fragility index (rCFI) of randomized controlled trials (RCTs) comparing operative and nonoperative treatment of acromioclavicular (AC) joint separations.</p><p><strong>Materials and methods: </strong>Databases were searched from inception to February 2025 using \"('Acromioclavicular' OR 'AC joint') AND ('Randomized controlled trial' OR 'RCT')\". Included studies were RCTs published after 2004 comparing operative versus nonoperative treatment. rCFI was calculated for primary nonsignificant outcomes, and an rCFI quotient was derived by dividing each study's rCFI by its sample size.</p><p><strong>Results: </strong>Seven studies involving 362 patients (92.3% male; mean age, 39.2 ± 7.7 years) with an average 5.29-year follow-up were analyzed. All studies included Rockwood type III injuries; 2 included type IV and 4 included type V. Mean rCFI was 14.9 ± 6.5. Four studies favored operative treatment. A total of 80 patients were lost to follow-up (mean, 13.3 per study), exceeding the rCFI in 3 of 7 studies. The mean rCFI quotient was 0.21 ± 0.06.</p><p><strong>Conclusion: </strong>The rCFI of included RCTs highlights the fragility of the conclusion that nonoperative management of type III-V AC joint injuries provides noninferior clinical outcomes to operative management of these injuries.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":" ","pages":"e269-e274"},"PeriodicalIF":1.3,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148397205","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":"Alteon HA Femoral Stem vs Origin Stem in Total Hip Arthroplasty: A Retrospective Cohort Study.","authors":"Christian P Christensen, Craig B Hendricks, Amber M Muehlmann","doi":"10.3928/01477447-20260429-01","DOIUrl":"10.3928/01477447-20260429-01","url":null,"abstract":"<p><strong>Background and objective: </strong>Standard-length hydroxyapatite (HA)-coated femoral stems have demonstrated strong performance and survivorship in total hip arthroplasty. However, limited data exist comparing these outcomes to those of newer, shortened HA-coated stems.</p><p><strong>Materials and methods: </strong>This retrospective cohort study evaluated intraoperative and postoperative outcomes in patients who underwent total hip arthroplasty using either the standard-length Origin Stem or the shortened Alteon HA Femoral Stem.</p><p><strong>Results: </strong>A total of 479 patients were included (151 Origin, 328 Alteon HA). The Origin group showed higher rates of calcar fracture (3.3% vs 2.1%), distal femur reaming (2.0% vs 0.3%), and revision (1.3% vs 0.3%), though not statistically significant. Osseointegration was achieved in the majority of cases (Origin: 96.8%; Alteon HA: 95.0%). Both groups experienced significant improvements in Hip Disability and Osteoarthritis Outcome Score for Joint Replacement (HOOS JR) and EQ-5D scores (<i>P</i> < .0001), as well as having comparable Patient-Reported Outcomes Measurement Information System (PROMIS) Global-10 scores. Leg length discrepancy occurred significantly more frequently in the Origin group compared to the Alteon HA group (2.6% vs 0.3%). The Alteon HA group demonstrated a 2-year survivorship rate of 98.2%.</p><p><strong>Conclusion: </strong>Both the standard-length Origin and shortened Alteon HA stems showed excellent short-term results, with 96% of patients in each group experiencing meaningful functional improvement. Both implants showed high osseointegration with low complication and revision rates. The Origin stem required more distal reaming and had an increased leg length discrepancy risk, whereas the shorter Alteon HA stem provided greater intraoperative flexibility with equally strong early results.</p>","PeriodicalId":19631,"journal":{"name":"Orthopedics","volume":"49 3","pages":"e235-e241"},"PeriodicalIF":1.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148043382","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}