Zeitschrift fur Orthopadie und Unfallchirurgie最新文献

{"title":"Self-assessment of Elbow Mobility as a Reliable Method in the Postoperative Follow-up Examination of Radial Head Fractures.","authors":"Johannes Porsche, Patrick Ziegler, Tina Histing, Marc-Daniel Ahrend, Sven Maier, Cornelius Sebastian Fischer","doi":"10.1055/a-2593-9161","DOIUrl":"https://doi.org/10.1055/a-2593-9161","url":null,"abstract":"<p><p>Sufficient follow-up of fractures is often difficult, due to age-related, health-related or geographical reasons. Self-assessment of the patient's functional outcome could be an alternative to a personal medical examination. There is a lack of validated questionnaires to record these parameters for elbow injuries. The aim of the study was to validate the patient's self-assessment of the range of motion following surgical treatment of complex radial head fractures.50 patients (42% women) with a mean age of 49.7 ± 13.8 years (range 25-82 years) with a surgically treated radial head fracture (Mason III or IV) were examined, 39.6 ± 23.3 months postoperatively. The fracture was treated with radial head reconstruction (60%) or radial head prosthesis (40%). The follow-up examination included the assessment of elbow mobility using a questionnaire (Elbow Motion Assessment Score) and physical examination using a goniometer. In addition, quality of life was assessed using the SF-36 Health Survey. The agreement of the mobility was recorded as a percentage using Spearman's correlation.Exact agreement between examiner and patient was achieved at 54% in flexion, 40% in extension, 86% in pronation and 54% in supination. The median deviations in agreement were 10° in extension and flexion and 20° in pronation and supination. The correlations were r = 0.550 (flexion), r = 0.841 (extension), r = 0.808 (pronation) and r = 0.754 (supination). Patients who agreed with the examiner on the movements achieved a higher score in the SF-36 Health Survey than patients who did not agree with the examiner (50.5 to 54.1 vs. 40.0 to 45.5).The survey of the range of motion by the patient using a questionnaire showed a high level of agreement with the measurement by an objective examiner. Such self-assessment can therefore be seen as a suitable, cost-effective alternative in the follow-up examination of surgically treated radial head fractures.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144113305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arthroscopic or Open Excision of Intraarticular Osteoid Osteoma in the Elbow Joint - a Case Report.","authors":"Lisa Hainzer, Markus Reichkendler, Helmut Weitlaner, Stephan Pauly, Christian Gerhardt, Daniel Rau, Kathi Thiele","doi":"10.1055/a-2596-9075","DOIUrl":"https://doi.org/10.1055/a-2596-9075","url":null,"abstract":"<p><p>Pain and stiffness are common symptoms that occur in many elbow pathologies. In the diagnostic algorithm for non-specific elbow pain, benign tumour lesions should be ruled out in rare cases. The following case presentations demonstrate that rare entities such as osteoid osteoma (OO) can be the cause for unclear elbow complaints.Three male patients presented with non-traumatic elbow pain over several months before seeking medical help for the first time. Their main concern was restricted Range of Motion (ROM). The plain radiographs were normal in ⅔ cases, and the CT-scans showed unspecific signs of free joint bodies in the area of the incisura trochlearis of the proximal ulna in the initial stages. Either arthroscopic or open excision was performed as based on CT and/or MRI scans. The decision on the appropriate approach of treatment depends on the localisation of the OO. In particular, the medial ulnohumeral joint section cannot be completely visualised and remains reserved for the open procedure, with the associated disadvantages. Histopathological preparation confirmed the diagnosis. Overall, both techniques seem to reduce the patient's pain immediately, restore ROM with a slight delay, and show almost no recurrence rates of the tumorous lesions.Patients presented with elbow pain and restricted ROM with no history of elbow trauma; plain radiographs as well as nocturnal pain are highly indicative of OO. Even though this is rare, we should always keep it in mind in order to protect the patient from wrong or delayed diagnosis and treatment. A surgical approach is to be preferred, particularly in the case of intra-articular localisation.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144103281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gender Research Gap in Orthopaedics and Trauma Surgery: Gender-specific Disparities in Submission of Abstracts to the German Congress of Orthopaedic and Trauma Surgery from 2015 to 2024.","authors":"Carolina Vogel, Vera Bertsch, Mika F Rollmann, Tina Histing, Benedikt J Braun","doi":"10.1055/a-2561-2910","DOIUrl":"https://doi.org/10.1055/a-2561-2910","url":null,"abstract":"<p><p>Gender-specific differences also affect the subject of orthopaedics and trauma surgery (O&T). While the proportion of women studying medicine is steadily increasing, the proportion of female surgeons in O&T is only 18.6%. This underrepresentation affects not only clinics but also research and is reflected in participation in scientific annual meetings such as the German Congress for Orthopaedics and Trauma Surgery (DKOU).This retrospective study examined the gender differences in abstract submissions to the DKOU from 2015 to 2024. The anonymised data were subjected to examination regarding gender, role in submission and academic title.The overall participation of women in the 82,813 abstracts was 20%. The proportion of women among submitters was 23.3%, among presenters 24.5% and among co-authors 18.2%. In the analysis of the female cohort alone, women were more likely to be submitters and presenters than in the male cohort (p < 0.001). The proportion of female participation in abstract submissions increased by an average of 0.5% per year over the study period. However, women were significantly underrepresented at higher academic degrees, such as habilitations (7.4%), professorships (7.6%) and university professorships (5.2%).The results show that the proportion of women submitting abstracts to the DKOU largely corresponds to the percentage in the field of orthopaedics and trauma surgery (18.6% in 2022), reflecting the overall gender disparity in this specialty. If this trend analysis were applied to the general development of gender parity in orthopaedics and trauma surgery, gender-equitable staffing of medical positions could not be achieved before the year 2087. To accelerate this development, targeted measures to promote women in orthopaedics and trauma surgery are necessary. This includes dismantling structural barriers and implementing specific support programs for female surgeons pursuing academic careers.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plantar Sensation and Muscle Activity During a Step on Various Textured Unstable Surfaces in Patients with Anterior Cruciate Ligament Reconstruction - Comparison with Healthy Controls.","authors":"Martin Alfuth, Nina Plücken, Jonas Klemp, Wilhelm Bloch","doi":"10.1055/a-2577-7304","DOIUrl":"https://doi.org/10.1055/a-2577-7304","url":null,"abstract":"<p><p>After anterior cruciate ligament reconstruction (ACLR), patients have been found to have reduced plantar sensation, which may result in reduced afferent input to the central nervous system and thus contribute to motor deficits. Textured surfaces are thought to have a beneficial neurosensory effect. The aim of this cross-sectional study was to compare plantar sensation and leg muscle activity while stepping on different textured surfaces between patients after ACLR and healthy controls.Plantar cutaneous thresholds to light touch were measured in 10 patients at least 6 months after ACLR and in 10 healthy controls. Patients or controls were asked to step forward on the centre of a force plate with the affected (ACLR) or randomly assigned (healthy controls) leg and maintain the single-legged stance for 10 seconds (floor condition). They were instructed to perform the same task on a balance board with a textured surface, the same balance board with a smooth surface, and a balance pad in random order. Muscle activity of four leg muscles was recorded using surface electromyography. The significance of differences in plantar sensation and mean muscle activity within three time frames between and within ACLR patients and healthy controls was analysed using non-parametric statistical tests with Bonferroni correction (<i>p</i> < 0.05).There were no significant differences between patients with ACLR and healthy controls in plantar sensation and muscle activity for all unstable surface conditions (<i>p</i> > 0.05). Friedman tests revealed significant differences in the activities of all muscles between surface conditions at the first peak of the vertical ground reaction force (vGRF) after the rapid increase in the force-time curve (transition from early lifting phase to late lifting phase) within both groups (<i>p</i> < 0.01). Post-hoc Wilcoxon signed-rank tests showed significantly altered activity for most muscles between the smooth and textured balance board conditions only at the first vGRF peak (<i>p</i> ≤ 0.01) in both patients and healthy controls.Although plantar sensation and muscle activity did not differ between patients with ACLR and healthy controls, altered muscle activity in both groups, especially during the transition from the early to the late lifting phase of stepping on a textured unstable surface, may indicate an acute change in the afferent input of plantar mechanoreceptors in response to the surface stimulus. In addition, it may indicate an acute change in motor output caused by a beneficial neurosensory effect. This effect should be considered with caution due to the small sample size.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144055681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quality of Life after Multisegmental Fusion Surgery for Degenerative Spine Diseases.","authors":"Frank Beyer, Johanna Schirmer, Tobias Prasse, Peer Eysel, Jan Bredow","doi":"10.1055/a-2546-7316","DOIUrl":"https://doi.org/10.1055/a-2546-7316","url":null,"abstract":"<p><p>Degenerative spinal diseases may lead to multisegmental instabilities and present as de novo scoliosis. Due to frequent primary and secondary complications, their treatment is controversial among spine surgeons. The aim of this systematic review is to investigate the postoperative quality of life after multilevel fusion surgery for de novo scoliosis. Furthermore, technical aspects and complications are examined in detail.A systematic literature search was conducted, excluding systematic reviews or meta-analyses. A follow-up period of at least 24 months was required. Standardised outcome instruments on quality of life, epidemiological data and information on surgical technique and any further follow-up examinations were extracted. Studies on adolescents or neuromuscular scoliosis were excluded, as were case reports and studies on short-span fusions.Twenty studies were included in the systematic review. The Oswestry Disability Index (ODI) was reported in 15 studies. All authors reported significant improvements. Inclusion of the L5/S1 segment showed no differences in quality of life, but better radiological correction, although the rate of adjacent segment degeneration and complications was higher. The data on general postoperative complications ranged from 10.5% to 71.5%.Quality of life after multilevel fusion for de novo scoliosis shows significant improvements. There is no general recommendation on the last instrumented vertebra or the caudal anchoring of the instrumentation. Treatment in specialised centres for spine surgery is strongly recommended, also due to the high postoperative complication rates.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143813284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transient Hip Synovitis, 146 Cases, Origin and Duration.","authors":"Hartmut Gaulrapp, Philipp Schoof, Gregor Schönecker","doi":"10.1055/a-2533-4972","DOIUrl":"https://doi.org/10.1055/a-2533-4972","url":null,"abstract":"<p><p>Transient hip synovitis is one of the most common paediatric orthopaedic diseases. This non-controlled interventional study investigated the origin, clinical findings, imaging and the duration of symptoms. 146 affected patients out of the total of 27659 patients under 18 years result in an incidence of 0.53%. 76.7% boys outweighed 23.3% girls (1.8-12.9 years [Ø 6.3 y, boys Ø 6.5 y, girls Ø 6.2 y]). Diagnoses were defined by ultrasound and the absence of concurrent diseases. In 60.5% of patients, the right hip was affected, in 39.5% the left. A single patient had CF on both sides but not at the same time. No simultaneous incidence was recorded. There were two singular recurrences. Within the study period, we counted 11 cases of Perthes' disease, 2 juvenile hip arthritis and one septic hip. Patients' history showed 41.0% viral infections, 21.6% physical exertion and 15.1% singular trauma. In 22.3% no origin could be named. Clinical aspects included pain in inward rotation (51.5%), in hip flexion (49.3%) and limping (37.5%). Ultrasound depicted medium joint effusion in 53.4%, marked effusion in 46.6% and synovial thickening in 17.1% of patients. 119 patients could be followed up weekly. Joint effusion vanished after 3-36 days (Ø 13.3 d), clinical symptoms Ø 1.6 days earlier. Total duration in terms of sonographic appearance of effusion was 3 to 37 days (Ø 19.1 d).</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MRI-based L1 Vertebral Bone Quality Scores Predict Cage Subsidence Following Transforaminal Lumbar Interbody Fusion Similar to L1 CT Hounsfield Units.","authors":"Yongdi Wang, Qian Chen, Ce Zhu, Youwei Ai, Juehan Wang, Hong Ding, Dun Luo, Limin Liu","doi":"10.1055/a-2550-4502","DOIUrl":"https://doi.org/10.1055/a-2550-4502","url":null,"abstract":"<p><p>Cage subsidence is one of the most common complications after transforaminal lumbar interbody fusion (TLIF) and correlates with inferior bone quality. Studies have reported L1 vertebral bone quality score (VBQ) based on MRI to be a promising alternative to evaluating preoperative bone quality. However, to the knowledge of the authors, no study has examined the correlation between L1 VBQ scores and cage subsidence after TLIF.The purpose of the study was (1) to assess the interrelation between the L1 VBQ score and cage subsidence after TLIF; and (2) to compare L1 VBQ and L1 CT Hounsfield Unit (HU) values in predicting cage subsidence after TLIF.We reviewed patients who had undergone TLIF at one institution between 2012 to 2021. Cage subsidence was measured using postoperative lumbar CT based on cage protrusion through the endplates at more than 2 mm. The L1 VBQ score was calculated by dividing mean L1 signal intensity (SI) by mean SI of the cerebrospinal fluid (CSF) at L1. The L1 HU value representing bone mineral density (BMD) was measured using computed tomography. We then performed Student's <i>t</i>-test for independent samples and logistic regression analyses for statistical analysis. We also conducted receiver operating characteristic (ROC) analysis to assess the predictive ability of the L1 VBQ score and L1 CT HU.Of 233 participants, cage subsidence was observed in 41 patients (17.6%). Comparison between the characteristics of patients between the group with subsidence and the group without subsidence revealed significant differences in the age, VBQ score, and L1 CT HU. Multivariate logistic regression showed that higher L1 VBQ score (OR = 2.499, 95% CI: 1.205-5.180, p = 0.014) and lower L1 CT HU (OR = 0.960, 95% CI: 0.933-0.987, p = 0.005) were associated with an increased rate of cage subsidence. Area under the curve (AUC) analysis of the L1 VBQ score returned 0.735 (95% CI: 0.620-0.850) and the suitable threshold was 3.424 (sensitivity: 82.9%, specificity: 70.7%). The AUC of L1 CT HU was 0.747 (95% CI: 0.642-0.852) and the suitable threshold was 136.5 (sensitivity: 85.4%, specificity: 56.1%).The present study demonstrates that L1 VBQ score and L1 CT HU are reliable predictors with similar performance for cage subsidence after TLIF.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Quadriceps Tendon and Patellar Tendon Rupture].","authors":"Christian Arras, Matthias Krause, Karl-Heinz Frosch","doi":"10.1055/a-2491-0972","DOIUrl":"10.1055/a-2491-0972","url":null,"abstract":"<p><p>The vascularity of the quadriceps tendon influences the risk of tendon rupture. Quadriceps and patellar tendon ruptures are rare but serious injuries, with an incidence of 1.37/100000 and 0.68/100000, respectively. Risk factors include age, degeneration, and systemic diseases such as kidney disease and rheumatoid arthritis. While quadriceps tendon ruptures predominantly affect people over 50, patellar tendon ruptures are more common in younger, physically active people, often with pre-existing tendon pathologies. The most common mechanism of rupture of the quadriceps tendon is indirect trauma, typically caused by sudden eccentric loading or reflexive contraction, with degeneration of the tendon tissue being a predisposing factor. Diagnosis is primarily clinical, supported by imaging modalities such as ultrasound and MRI. Treatment options depend on the severity of the tear. Partial ruptures can often be managed conservatively, whereas complete ruptures require surgical repair, typically by transosseous suture or fixation with bone anchors or transosseous sutures. Early functional rehabilitation is essential for optimal recovery. The prognosis is generally favorable with early treatment, although complications such as quadriceps atrophy and flexion deficits may occur. Proper documentation of the mechanism of injury and histopathological evaluation of the tendon tissue are important to determine the underlying cause and ensure appropriate insurance coverage.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":"163 2","pages":"181-194"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143712555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Digitale Helfer: KI in der Unfallchirurgie im Einklang mit ethischen Standards.","authors":"Marie Samland","doi":"10.1055/a-2491-0794","DOIUrl":"https://doi.org/10.1055/a-2491-0794","url":null,"abstract":"","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":"163 2","pages":"122"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implantation of Reverse Shoulder Endoprothesis Using Navigation.","authors":"Olaf Rolf, Andreas Blana, Philipp Hagedorn","doi":"10.1055/a-2346-9916","DOIUrl":"10.1055/a-2346-9916","url":null,"abstract":"<p><p>Die Implantation einer inversen Schulterendoprothese (TEP) stellt eine bewährte Methode zur Schmerzlinderung und Schulterfunktionsverbesserung dar. Die Ergebnisse variieren je nach Patientenalter, Krankheitsgrad und Erfahrung des Operateurs. Indikationen für eine inverse TEP sind vielfältig, von der Defektarthropathie bis hin zu Frakturen. Aktuelle Studien zeigen verbesserte Überlebensraten und reduzierte Komplikationen nach primärer Implantation. Die präoperative Planung mittels 3-D-CT oder MRT gilt als Goldstandard. Patientenspezifische Instrumente (PSI) wurden eingeführt, sind jedoch mit Kosten und Wartezeit verbunden. Die Navigation mit \"Augmented Reality\" (AR) bietet eine effizientere Alternative. Die intraoperative Übertragung der Planung auf den Patienten erfolgt über AR-Brillen und ermöglicht Echtzeitinformationen, wodurch der Chirurg den Blick vom Situs nicht abwenden muss. Dies optimiert den Workflow und bietet potenziell präzisere Implantationsresultate. Zusammenfassend bietet die Kombination von 3-D-Planung, Navigation und AR eine vielversprechende Methode für präzise und effiziente Implantationen von inversen Schulterendoprothesen. Allerdings steht der Nachweis verbesserter Standzeiten und Funktionsscores noch aus.</p>","PeriodicalId":94274,"journal":{"name":"Zeitschrift fur Orthopadie und Unfallchirurgie","volume":" ","pages":"176-180"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142305418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}