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Role of biomechanical assessment in rotator cuff tear repair: Arthroscopic vs mini-open approach 被引量:1
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作者 Giuseppe Solarino Ilaria Bortone +5 位作者 Giovanni Vicenti Davide Bizzoca Michele Coviello Giuseppe Maccagnano Biagio Moretti Fabio D'Angelo 《World Journal of Orthopedics》 2021年第12期991-1000,共10页
BACKGROUND Rotator cuff(RC)tears are one of the most frequent pathologies within the shoulder girdle.Hand dominance and older age are associated with RC tears.Two different surgical procedures,the mini-open(MO)and all... BACKGROUND Rotator cuff(RC)tears are one of the most frequent pathologies within the shoulder girdle.Hand dominance and older age are associated with RC tears.Two different surgical procedures,the mini-open(MO)and all-arthroscopic(AA)approach,represented the standard of treatment.AIM To compare the clinical and biomechanical outcomes of two surgical techniques(AA vs MO procedure)performed to address the painful shoulder syndrome with partial or total supraspinatus tendon tear.METHODS Eighty-eight participants,50 following RC repair with AA and 38 with MO approach,were recruited in the present cross-sectional case-control study(ORTHO-SHOULDER,Prot.0054602).All patients underwent postoperative clinical evaluation for pain(Visual analogic scale),impairment,and disability(disability of the arm,shoulder,and hand)and limitation in daily activity(Constant-Murley score).Patients’shoulder mobility was also assessed in our Laboratory of Functional Movement through a wearable inertial sensor and surface electromyography to monitor kinematics and muscle activity during the movement on the frontal(abduction/adduction)and sagittal(flexion-extension)planes.RESULTS No statistically significant differences between the two procedures were observed in either main clinical score or range of motion.A significant increase in velocity during the movement execution and a higher contribution of upper trapezius muscles were found in the AA group compared with MO patients.CONCLUSION In terms of clinical scores,our findings were in line with previous results.However,the use of technology-based assessment of shoulder mobility has revealed significant differences between the two techniques in terms of mean velocity and pattern of muscle activation. 展开更多
关键词 Rotator cuff tear ARTHROSCOPIC mini-open Wearable sensors Surface electromyography
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Induced pluripotent stem cell-related approaches to generate dopaminergic neurons for Parkinson's disease
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作者 Ling-Xiao Yi Hui Ren Woon +3 位作者 Genevieve Saw Li Zeng Eng King Tan Zhi Dong Zhou 《Neural Regeneration Research》 SCIE CAS 2025年第11期3193-3206,共14页
The progressive loss of dopaminergic neurons in affected patient brains is one of the pathological features of Parkinson's disease,the second most common human neurodegenerative disease.Although the detailed patho... The progressive loss of dopaminergic neurons in affected patient brains is one of the pathological features of Parkinson's disease,the second most common human neurodegenerative disease.Although the detailed pathogenesis accounting for dopaminergic neuron degeneration in Parkinson's disease is still unclear,the advancement of stem cell approaches has shown promise for Parkinson's disease research and therapy.The induced pluripotent stem cells have been commonly used to generate dopaminergic neurons,which has provided valuable insights to improve our understanding of Parkinson's disease pathogenesis and contributed to anti-Parkinson's disease therapies.The current review discusses the practical approaches and potential applications of induced pluripotent stem cell techniques for generating and differentiating dopaminergic neurons from induced pluripotent stem cells.The benefits of induced pluripotent stem cell-based research are highlighted.Various dopaminergic neuron differentiation protocols from induced pluripotent stem cells are compared.The emerging three-dimension-based brain organoid models compared with conventional two-dimensional cell culture are evaluated.Finally,limitations,challenges,and future directions of induced pluripotent stem cell–based approaches are analyzed and proposed,which will be significant to the future application of induced pluripotent stem cell-related techniques for Parkinson's disease. 展开更多
关键词 dopaminergic neurons induced pluripotent stem cells Parkinson's disease stem cell approaches
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Enhancing perianal disease management with integrated physical and psychological approaches
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作者 Uchenna E Okpete Haewon Byeon 《World Journal of Clinical Cases》 SCIE 2025年第2期59-63,共5页
This article provides a comprehensive analysis of the study by Hou et al,focusing on the complex interplay between psychological and physical factors in the postoperative recovery(POR)of patients with perianal disease... This article provides a comprehensive analysis of the study by Hou et al,focusing on the complex interplay between psychological and physical factors in the postoperative recovery(POR)of patients with perianal diseases.The study sheds light on how illness perception,anxiety,and depression significantly influence recovery outcomes.Hou et al developed a predictive model that demonstrated high accuracy in identifying patients at risk of poor recovery.The article explores the critical role of pre-operative psychological assessment,highlighting the need for mental health support and personalized recovery plans in enhancing POR quality.A multidisciplinary approach,integrating mental health professionals with surgeons,anesthesiologists,and other specialists,is emphasized to ensure comprehensive care for patients.The study’s findings serve as a call to integrate psychological care into surgical practice to optimize outcomes for patients with perianal diseases. 展开更多
关键词 Perianal disease Post-operative recovery ANXIETY DEPRESSION Pain management Emotional well-being Multidisciplinary approach
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Chyle leak following root of mesentery dissection in pancreaticoduodenectomy with inferior infracolic superior mesenteric artery first approach
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作者 Prabir Maharjan Sujan Regmee +5 位作者 Spandan D Adhikari Rabin Pahari Roshan Ghimire Dhiresh K Maharjan Suman K Shrestha Prabin B Thapa 《World Journal of Clinical Cases》 SCIE 2025年第8期8-14,共7页
BACKGROUND The root of mesentery dissection is one of the critical maneuvers,especially in borderline resectable pancreatic head cancer.Intra-abdominal chyle leak(CL)including chylous ascites may ensue in up to 10%of ... BACKGROUND The root of mesentery dissection is one of the critical maneuvers,especially in borderline resectable pancreatic head cancer.Intra-abdominal chyle leak(CL)including chylous ascites may ensue in up to 10%of patients after pancreatic resections.Globally recognized superior mesenteric artery(SMA)first approaches are invariably performed.The mesenteric dissection through the inferior infracolic approach has been discussed in this study emphasizing its post-operative impact on CL which is the cornerstone of this study.AIM To assess incidence,risk factors,clinical impact of CL following root of mesentery dissection,and the different treatment modalities.METHODS This is a retrospective study incorporating the patients who underwent dissection of the root of mesentery with inferior infracolic SMA first approach pancreat-oduodenectomy for the ventral body and uncinate mass of pancreas in the Department of Gastrointestinal and General Surgery of Kathmandu Medical College and Teaching Hospital from January 1,2021 to February 28,2024.Intraop-erative findings and postoperative outcomes were analyzed.RESULTS In three years,ten patients underwent root of mesentery dissection with inferior infracolic SMA first approach pancreatoduodenectomy.The mean age was 67.6 years with a male-to-female ratio of 4:5.CL was seen in four patients.With virtue of CL,Clavien-Dindo grade Ⅱ or higher morbidity was observed in four patients.Two patients had a hospital stay of more than 20 days with the former having a delayed gastric emptying and the latter with long-term total parenteral nutrition requirement.The mean operative time was 330 minutes.Curative resection was achieved in 100%of the patients.The mean duration of the intensive care unit and hospital stay were 2.55±1.45 days and 15.7±5.32 days,respectively.CONCLUSION Root of mesentery dissection with lymphadenectomy and vascular resection correlated with occurrence of CL.After complete curative resection,these were managed with total parenteral nutrition without adversely impacting outcome. 展开更多
关键词 Chyle leak Chylous ascites Clavien-Dindo Pancreatoduodenectomy Root of mesentery dissection Superior mesenteric artery first approach Total parenteral nutrition Uncinate mass Vascular resection Ventral body mass
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Surgical outcomes of mini-open Wiltse approach and conventional open approach in patients with single-segment thoracolumbar fractures without neurologic injury 被引量:47
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作者 Haijun Li Lei Yang +3 位作者 Hao Xie Lipeng Yu Haifeng Wei Xiaojian Cao 《The Journal of Biomedical Research》 CAS CSCD 2015年第1期76-82,共7页
This study aimed to introduce a novel mini-open pedicle screw fixation technique via Wiltse approach, and com- pared it with the traditional posterior open method. A total of 72 cases of single-segment thoracolumbar f... This study aimed to introduce a novel mini-open pedicle screw fixation technique via Wiltse approach, and com- pared it with the traditional posterior open method. A total of 72 cases of single-segment thoracolumbar fractures without neurologic injury underwent pedicle screw fixation via two different approaches. Among them, 37 patients were treated using posterior open surgery, and 35 patients received mini-open operation via Wiltse approach. Crew placement accuracy rate, operative time, blood loss, postoperative drainage, postoperative hospitalization time, radiation exposure time, postoperative improvement in R value, Cobb's angle and visual analog scale (VAS) scores of the two methods were compared. There were no significant differences in the accuracy rate of pedicle screw placement, radiation exposure and postoperative R value and Cobb's angle improvement between the two groups. However, the mini-open method had obvious advantages over the conventional open method in operative time, blood loss, postoperative drainage, postoperative hospitalization time, and postoperative improvement in VAS. The mini-open pedicle screw technique could be applied in treatment of single-segment thoracolumbar fracture without neurologic injury and had advantages of less tissue trauma, short operative and rehabilitative time on the premise of guaranteed accuracy rate and no increased radiation exposure. 展开更多
关键词 thoracolumbar fracture pedicle screw mini-open Wiltse approach minimally invasive
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Corrections in alpha angle following two different operative approaches for CAM-type femoral acetabular impingement-Ganz surgical hip dislocation vs anterior mini-open 被引量:1
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作者 Emanuel C Haug Wendy M Novicoff Quanjun Cui 《World Journal of Orthopedics》 2020年第1期27-35,共9页
BACKGROUND Femoroacetabular impingement(FAI)is a predisposing factor for secondary osteoarthritis of the hip joint.The two extensively described impingement mechanisms of FAI are CAM and Pincer-type.Initially managed ... BACKGROUND Femoroacetabular impingement(FAI)is a predisposing factor for secondary osteoarthritis of the hip joint.The two extensively described impingement mechanisms of FAI are CAM and Pincer-type.Initially managed conservatively,operative intervention should be offered to the persistently symptomatic patient.The measurement of the alpha angle is considered a standard method of assessing the severity of pathology in Cam-type FAI on pre-operative plain radiographs.The radiological correction of the alpha angle has not been previously compared between different surgical approaches.We hypothesize that there is no difference in alpha angle correction between Ganz surgical hip dislocation and the anterior mini-open approach.AIM To compare the magnitude of alpha angle correction achieved by using the Ganz surgical hip dislocation and the anterior mini-open approach.METHODS This is a retrospective study assessing seventy-nine patients identified in a 5-year period.These patients had preoperative radiographic evidence of FAI and underwent surgery by a single surgeon at our institution,a tertiary care center.Patients with missing radiographic documentation,radiographs with insufficient quality which then precluded accurate measurement of the angleα,a diagnosed congenital condition,isolated type II pathology(Pincer),and history of prior surgery were excluded from the study.Either the Ganz surgical hip dislocation or the anterior mini open approach was used.Postoperative radiographic evaluation of the alpha angle between the two surgical methods was done and corrected for age and gender using two-sample t-tests and Chi-square analyses.RESULTS A total of 79 patients met the inclusion and exclusion criteria.Forty-seven males(mean age of 35.3,range 16-53)and 32 females(mean age 36.7,range 16-60)were enrolled.Forty-seven patients underwent the anterior mini-open approach,and 32 underwent the Ganz surgical hip dislocation.There were no significant differences in age between the two surgical groups or in pre-and post-operative alpha angles based on patient gender.The mean pre-operative alpha angle for the Ganz surgical hip dislocation group was 88.0 degrees(SD 12.3)and 99.4 degrees(SD 7.2)for the anterior mini-open group.Mean post-operative angles were 49.9 degrees(SD 4.3)for the Ganz surgical hip dislocation and 43.8(SD 4.3)degrees for the anterior mini-open group.There was a statistically significant difference in patient’s pre-operative and post-operative angles(P=0.000)with both surgical approaches.CONCLUSION Statistically significant decreases in alpha angle were noted for both surgical techniques,with larger decreases seen in the anterior mini-open group. 展开更多
关键词 Alpha angle Femoroacetabular impingement Ganz surgical hip dislocation Anterior mini-open
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Complication rates after direct anterior vs posterior approach for hip hemiarthroplasty in elderly individuals with femoral neck fractures 被引量:3
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作者 Tatiana Charles Nicolas Bloemers +1 位作者 Bilal Kapanci Marc Jayankura 《World Journal of Orthopedics》 2024年第1期22-29,共8页
BACKGROUND Dislocation rates after hemiarthroplasty reportedly vary from 1%to 17%.This serious complication is associated with increased morbidity and mortality rates.Approaches to this surgery are still debated,with ... BACKGROUND Dislocation rates after hemiarthroplasty reportedly vary from 1%to 17%.This serious complication is associated with increased morbidity and mortality rates.Approaches to this surgery are still debated,with no consensus regarding the superiority of any single approach.AIM To compare early postoperative complications after implementing the direct anterior and posterior approaches(PL)for hip hemiarthroplasty after femoral neck fractures.METHODS This is a comparative,retrospective,single-center cohort study conducted at a university hospital.Between March 2008 and December 2018,273 patients(a total of 280 hips)underwent bipolar hemiarthroplasties(n=280)for displaced femoral neck fractures using either the PL(n=171)or the minimally invasive direct anterior approach(DAA)(n=109).The choice of approach was related to the surgeons’practices;the implant types were similar and unrelated to the approach.Dislocation rates and other complications were reviewed after a minimum followup of 6 mo.RESULTS Both treatment groups had similarly aged patients(mean age:82 years),sex ratios,patient body mass indexes,and patient comorbidities.Surgical data(surgery delay time,operative time,and blood loss volume)did not differ significantly between the groups.The 30 d mortality rate was higher in the PL group(9.9%)than in the DAA group(3.7%),but the difference was not statistically significant(P=0.052).Among the one-month survivors,a significantly higher rate of dislocation was observed in the PL group(14/154;9.1%)than in the DAA group(0/105;0%)(P=0.002).Of the 14 patients with dislocation,8 underwent revision surgery for recurrent instability(posterior group),and one of them had 2 additional procedures due to a deep infection.The rate of other complications(e.g.,perioperative and early postoperative periprosthetic fractures and infection-related complications)did not differ significantly between the groups.CONCLUSION These findings suggest that the DAA to bipolar hemiarthroplasty for patients with femoral neck fractures is associated with a lower dislocation rate(<1%)than the PL. 展开更多
关键词 HEMIARTHROPLASTY Femoral neck fracture Direct anterior approach Posterior approach DISLOCATION MORTALITY
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A FLEXIBLE OBJECTIVE-CONSTRAINT APPROACH AND A NEW ALGORITHM FOR CONSTRUCTING THE PARETO FRONT OF MULTIOBJECTIVE OPTIMIZATION PROBLEMS 被引量:1
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作者 N.HOSEINPOOR M.GHAZNAVI 《Acta Mathematica Scientia》 SCIE CSCD 2024年第2期702-720,共19页
In this article, a novel scalarization technique, called the improved objective-constraint approach, is introduced to find efficient solutions of a given multiobjective programming problem. The presented scalarized pr... In this article, a novel scalarization technique, called the improved objective-constraint approach, is introduced to find efficient solutions of a given multiobjective programming problem. The presented scalarized problem extends the objective-constraint problem. It is demonstrated that how adding variables to the scalarized problem, can lead to find conditions for (weakly, properly) Pareto optimal solutions. Applying the obtained necessary and sufficient conditions, two algorithms for generating the Pareto front approximation of bi-objective and three-objective programming problems are designed. These algorithms are easy to implement and can achieve an even approximation of (weakly, properly) Pareto optimal solutions. These algorithms can be generalized for optimization problems with more than three criterion functions, too. The effectiveness and capability of the algorithms are demonstrated in test problems. 展开更多
关键词 multiobjective optimization Pareto front SCALARIZATION objective-constraint approach proper efficient solution
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Exploring an eco-friendly approach to improve soil tensile behavior and cracking resistance 被引量:1
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作者 Lin Li Chao-Sheng Tang +5 位作者 Jin-Jian Xu Yao Wei Zhi-Hao Dong Bo Liu Xi-Ying Zhang Bin Shi 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第10期4272-4284,共13页
Soil tensile strength is a critical parameter governing the initiation and propagation of tensile cracking.This study proposes an eco-friendly approach to improve the tensile behavior and crack resistance of clayey so... Soil tensile strength is a critical parameter governing the initiation and propagation of tensile cracking.This study proposes an eco-friendly approach to improve the tensile behavior and crack resistance of clayey soils.To validate the feasibility and efficacy of the proposed approach,direct tensile tests were employed to determine the tensile strength of the compacted soil with different W-OH treatment concentrations and water contents.Desiccation tests were also performed to evaluate the effectiveness of W-OH treatment in enhancing soil tensile cracking resistance.During this period,the effects of W-OH treatment concentration and water content on tensile properties,soil suction and microstructure were investigated.The tensile tests reveal that W-OH treatment has a significant impact on the tensile strength and failure mode of the soil,which not only effectively enhances the tensile strength and failure displacement,but also changes the brittle failure behavior into a more ductile quasi-brittle failure behavior.The suction measurements and mercury intrusion porosimetry(MIP)tests show that W-OH treatment can slightly reduce soil suction by affecting skeleton structure and increasing macropores.Combined with the microstructural analysis,it becomes evident that the significant improvement in soil tensile behavior through W-OH treatment is mainly attributed to the W-OH gel's ability to provide additional binding force for bridging and encapsulating the soil particles.Moreover,desiccation tests demonstrate that W-OH treatment can significantly reduce or even inhibit the formation of soil tensile cracking.With the increase of W-OH treatment concentration,the surface crack ratio and total crack length are significantly reduced.This study enhances a fundamental understanding of eco-polymer impacts on soil mechanical properties and provides valuable insight into their potential application for improving soil crack resistance. 展开更多
关键词 Clayey soil Tensile strength Eco-friendly approach Direct tensile test Desiccation cracking Crack resistance
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Laparoscopic left hemihepatectomy guided by indocyanine green fluorescence: A cranial-dorsal approach 被引量:1
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作者 Xing-Ru Wang Xiao-Ju Li +6 位作者 Dan-Dan Wan Qian Zhang Tian-Xi Liu Zong-Wen Shen Hong-Xing Tong Yan Li Jian-Wei Li 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第2期409-418,共10页
BACKGROUND Advancements in laparoscopic technology and a deeper understanding of intra-hepatic anatomy have led to the establishment of more precise laparoscopic hepatectomy(LH)techniques.The indocyanine green(ICG)flu... BACKGROUND Advancements in laparoscopic technology and a deeper understanding of intra-hepatic anatomy have led to the establishment of more precise laparoscopic hepatectomy(LH)techniques.The indocyanine green(ICG)fluorescence navi-gation technique has emerged as the most effective method for identifying hepatic regions,potentially overcoming the limitations of LH.While laparoscopic left hemihepatectomy(LLH)is a standardized procedure,there is a need for innova-tive strategies to enhance its outcomes.important anatomical markers,surgical skills,and ICG staining methods.METHODS Thirty-seven patients who underwent ICG fluorescence-guided LLH at Qujing Second People's Hospital between January 2019 and February 2022 were retrospectively analyzed.The cranial-dorsal approach was performed which involves dissecting the left hepatic vein cephalad,isolating the Arantius ligament,exposing the middle hepatic vein,and dissecting the parenchyma from the dorsal to the foot in order to complete the anatomical LLH.The surgical methods,as well as intra-and post-surgical data,were recorded and analyzed.Our hospital’s Medical Ethics Committee approved this study(Ethical review:2022-019-01).RESULTS Intraoperative blood loss during LLH was 335.68±99.869 mL and the rates of transfusion and conversion to laparotomy were 13.5%and 0%,respectively.The overall incidence of complications throughout the follow-up(median of 18 months;range 1-36 months)was 21.6%.No mortality or severe complications(level IV)were reported.CONCLUSION LLH has the potential to become a novel,standardized approach that can effectively,safely,and simply expose the middle hepatic vein and meet the requirements of precision surgery. 展开更多
关键词 Laparoscopic left hemihepatectomy Indocyanine green Cranial-dorsal approach Laparoscopic hepatectomy Arantius ligament Glissonean pedicle
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Which approach of total hip arthroplasty is the best efficacy and least complication? 被引量:1
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作者 Lertkong Nitiwarangkul Natthapong Hongku +3 位作者 Oraluck Pattanaprateep Sasivimol Rattanasiri Patarawan Woratanarat Ammarin Thakkinstian 《World Journal of Orthopedics》 2024年第1期73-93,共21页
BACKGROUND Total hip arthroplasty is as an effective intervention to relieve pain and improve hip function.Approaches of the hip have been exhaustively explored about pros and cons.The efficacy and the complications o... BACKGROUND Total hip arthroplasty is as an effective intervention to relieve pain and improve hip function.Approaches of the hip have been exhaustively explored about pros and cons.The efficacy and the complications of hip approaches remains inconclusive.This study conducted an umbrella review to systematically appraise previous meta-analysis(MAs)including conventional posterior approach(PA),and minimally invasive surgeries as the lateral approach(LA),direct anterior approach(DAA),2-incisions method,mini-lateral approach and the newest technique direct superior approach(DSA)or supercapsular percutaneouslyassisted total hip(SuperPath).AIM To compare the efficacy and complications of hip approaches that have been published in all MAs and randomized controlled trials(RCTs).METHODS MAs were identified from MEDLINE and Scopus from inception until 2023.RCTs were then updated from the latest MA to September 2023.This study included studies which compared hip approaches and reported at least one outcome such as Harris Hip Score(HHS),dislocation,intra-operative fracture,wound compliData were independently selected,extracted and assessed by two reviewers.Network MA and cluster rank and surface under the cumulative ranking curve(SUCRA)were estimated for treatment efficacy and safety.RESULTS Finally,twenty-eight MAs(40 RCTs),and 13 RCTs were retrieved.In total 47 RCTs were included for reanalysis.The results of corrected covered area showed high degree(13.80%).Among 47 RCTs,most of the studies were low risk of bias in part of random process and outcome reporting,while other domains were medium to high risk of bias.DAA significantly provided higher HHS at three months than PA[pooled unstandardized mean difference(USMD):3.49,95%confidence interval(CI):0.98,6.00 with SUCRA:85.9],followed by DSA/SuperPath(USMD:1.57,95%CI:-1.55,4.69 with SUCRA:57.6).All approaches had indifferent dislocation and intraoperative fracture rates.SUCRA comparing early functional outcome and composite complications(dislocation,intra-operative fracture,wound complication,and nerve injury)found DAA was the best approach followed by DSA/SuperPath.CONCLUSION DSA/SuperPath had better earlier functional outcome than PA,but still could not overcome the result of DAA.This technique might be the other preferred option with acceptable complications. 展开更多
关键词 Total hip arthroplasty Total hip replacement approach Supercapsular percutaneously-assisted total hip Harris Hip Score Intra-operative fracture
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Minimalistic approach to left atrial appendage occlusion guided by cardiac computed tomography angiography
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作者 Xian-Sai MENG Qing-Song WANG +7 位作者 Xin-Yan WANG Xu LU Yang MU Jing WANG Ting-Ting SONG Yun-Dai CHEN Tao CHEN Jun GUO 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2024年第4期431-442,共12页
OBJECTIVE To assess the feasibility and safety of the minimalistic approach to left atrial appendage occlusion(LAAO) guided by cardiac computed tomography angiography(CCTA).METHODS Ninety consecutive patients who unde... OBJECTIVE To assess the feasibility and safety of the minimalistic approach to left atrial appendage occlusion(LAAO) guided by cardiac computed tomography angiography(CCTA).METHODS Ninety consecutive patients who underwent LAAO, with or without CCTA-guided, were matched(1:2). Each step of the LAAO procedure in the computed tomography(CT) guidance group(CT group) was directed by preprocedural CT planning. In the control group, LAAO was performed using the standard method. All patients were followed up for 12 months, and device surveillance was conducted using CCTA.RESULTS A total of 90 patients were included in the analysis, with 30 patients in the CT group and 60 matched patients in the control group. All patients were successfully implanted with Watchman devices. The mean ages for the CT group and the control group were 70.0 ± 9.4 years and 68.4 ± 11.9 years(P = 0.52), respectively. The procedure duration(45.6 ± 10.7 min vs. 58.8 ± 13.0 min,P < 0.001) and hospital stay(7.5 ± 2.4 day vs. 9.6 ± 2.8 day, P = 0.001) in the CT group was significantly shorter compared to the control group. However, the total radiation dose was higher in the CT group compared to the control group(904.9 ± 348.0 m Gy vs.711.9 ± 211.2 m Gy, P = 0.002). There were no significant differences in periprocedural pericardial effusion(3.3% vs. 6.3%, P = 0.8) between the two groups. The rate of postprocedural adverse events(13.3% vs. 18.3%, P = 0.55) were comparable between both groups at 12 months follow-up.CONCLUSIONS CCTA is capable of detailed LAAO procedure planning. Minimalistic LAAO with preprocedural CCTA planning was feasible and safe, with shortened procedure time and acceptable increased radiation and contras consumption. For patients with contraindications to general anesthesia and/or transesophageal echocardiography, this promising method may be an alternative to conventional LAAO. 展开更多
关键词 ANESTHESIA matched approach
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Virtual source approach for maximizing resolution in high-penetration gamma-ray imaging
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作者 Yuchi Wu Shaoyi Wang +14 位作者 Bin Zhu Yonghong Yan Minghai Yu Gang Li Xiaohui Zhang Yue Yang Fang Tan Feng Lu Bi Bi Xiaoqin Mao Zhonghai Wang Zongqing Zhao Jingqin Su Weimin Zhou Yuqiu Gu 《Matter and Radiation at Extremes》 SCIE EI CSCD 2024年第3期19-30,共12页
High-energy gamma-ray radiography has exceptional penetration ability and has become an indispensable nondestructive testing(NDT)tool in various fields.For high-energy photons,point projection radiography is almost th... High-energy gamma-ray radiography has exceptional penetration ability and has become an indispensable nondestructive testing(NDT)tool in various fields.For high-energy photons,point projection radiography is almost the only feasible imaging method,and its spatial resolution is primarily constrained by the size of the gamma-ray source.In conventional industrial applications,gamma-ray sources are commonly based on electron beams driven by accelerators,utilizing the process of bremsstrahlung radiation.The size of the gamma-ray source is dependent on the dimensional characteristics of the electron beam.Extensive research has been conducted on various advanced accelerator technologies that have the potential to greatly improve spatial resolution in NDT.In our investigation of laser-driven gamma-ray sources,a spatial resolution of about 90μm is achieved when the areal density of the penetrated object is 120 g/cm^(2).A virtual source approach is proposed to optimize the size of the gamma-ray source used for imaging,with the aim of maximizing spatial resolution.In this virtual source approach,the gamma ray can be considered as being emitted from a virtual source within the convertor,where the equivalent gamma-ray source size in imaging is much smaller than the actual emission area.On the basis of Monte Carlo simulations,we derive a set of evaluation formulas for virtual source scale and gamma-ray emission angle.Under optimal conditions,the virtual source size can be as small as 15μm,which can significantly improve the spatial resolution of high-penetration imaging to less than 50μm. 展开更多
关键词 RESOLUTION approach utilizing
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Debate on direct-anterior vs posterior approach for hip hemiarthroplasty:The authors’insights
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作者 Deepak Kumar Tarkik Thami Manjunath Nishani 《World Journal of Orthopedics》 2024年第5期486-488,共3页
We read and discussed the study entitled“Complication rates after direct anterior vs posterior approach for Hip Hemiarthroplasty in elderly individuals with femoral neck fractures”with great interest.The authors hav... We read and discussed the study entitled“Complication rates after direct anterior vs posterior approach for Hip Hemiarthroplasty in elderly individuals with femoral neck fractures”with great interest.The authors have done justice to the topic of comparison of anterior and posterior surgical approaches for bipolar hemiarthroplasty which has been an everlasting debate in the existing literature.However,there are certain aspects of this study that need clarification from the authors. 展开更多
关键词 COMMENTARY Direct anterior approach Posterior approach Hip hemiarthroplasty
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Direct anterior compared to posterior approach for hip hemiarthroplasty following femoral neck fractures
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作者 Kevin A Wu Alexandra N Krez Albert T Anastasio 《World Journal of Orthopedics》 2024年第6期605-607,共3页
The differences in complication rates between the direct anterior and posterior approaches for hemiarthroplasty in elderly patients with femoral neck fractures are not yet fully understood.Dislocation,a severe complic... The differences in complication rates between the direct anterior and posterior approaches for hemiarthroplasty in elderly patients with femoral neck fractures are not yet fully understood.Dislocation,a severe complication associated with increased mortality and often requiring additional surgery,may occur less frequently with the direct anterior approach compared to the posterior approach.Careful consideration of patient demographics is essential when planning the surgical approach.Future research in this area should focus on robust randomized controlled trials involving elderly patients recovering from femoral neck fractures. 展开更多
关键词 Direct anterior approach Posterior approach HEMIARTHROPLASTY Femoral neck fractures ARTHROPLASTY DISLOCATION Surgical technique
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A Deep Learning Based Broadcast Approach for Image Semantic Communication over Fading Channels
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作者 Ma Kangning Shi Yuxuan +1 位作者 Shao Shuo Tao Meixia 《China Communications》 SCIE CSCD 2024年第7期78-94,共17页
We consider an image semantic communication system in a time-varying fading Gaussian MIMO channel,with a finite number of channel states.A deep learning-aided broadcast approach scheme is proposed to benefit the adapt... We consider an image semantic communication system in a time-varying fading Gaussian MIMO channel,with a finite number of channel states.A deep learning-aided broadcast approach scheme is proposed to benefit the adaptive semantic transmission in terms of different channel states.We combine the classic broadcast approach with the image transformer to implement this adaptive joint source and channel coding(JSCC)scheme.Specifically,we utilize the neural network(NN)to jointly optimize the hierarchical image compression and superposition code mapping within this scheme.The learned transformers and codebooks allow recovering of the image with an adaptive quality and low error rate at the receiver side,in each channel state.The simulation results exhibit our proposed scheme can dynamically adapt the coding to the current channel state and outperform some existing intelligent schemes with the fixed coding block. 展开更多
关键词 broadcast approach deep learning fading channels semantic communication
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Lychrel Numbers in Base 10: A Probabilistic Approach
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作者 Rostand S. Kuitché 《Advances in Pure Mathematics》 2024年第8期667-694,共28页
For decades, Lychrel numbers have been studied on many bases. Their existence has been proven in base 2, 11 or 17. This paper presents a probabilistic proof of the existence of Lychrel number in base 10 and provides s... For decades, Lychrel numbers have been studied on many bases. Their existence has been proven in base 2, 11 or 17. This paper presents a probabilistic proof of the existence of Lychrel number in base 10 and provides some properties which enable a mathematical extraction of new Lychrel numbers from existing ones. This probabilistic approach has the advantage of being extendable to other bases. The results show that palindromes can also be Lychrel numbers. 展开更多
关键词 Probabilistic approach PALINDROMES Lychrel Numbers Iteration Function DIGITS
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Immunotherapy in Cutaneous Oncology: Revolutionizing Treatment Approaches
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作者 Abigail Beard Sydney DeVore +4 位作者 Kelly Frasier Sandhya Palit Alexandra Loperfito Lacey M. Miller Michelle Sobotka 《Journal of Biosciences and Medicines》 2024年第11期80-93,共14页
Background: Cutaneous oncology encompasses a broad range of skin malignancies, including melanoma, cutaneous squamous cell carcinoma (SCC), and basal cell carcinoma (BCC), all of which pose significant global health c... Background: Cutaneous oncology encompasses a broad range of skin malignancies, including melanoma, cutaneous squamous cell carcinoma (SCC), and basal cell carcinoma (BCC), all of which pose significant global health challenges. The World Health Organization (WHO) estimates that melanoma incidence has increased by approximately 50% over the past three decades. While SCC and BCC are generally less aggressive than melanoma, they contribute significantly to the overall burden of skin cancer due to their high prevalence. Traditional treatment modalities for these malignancies, such as surgery, radiation, and chemotherapy, have shown limitations in achieving durable responses and minimizing systemic toxicity. As a result, there is an increasing need for more effective and less toxic treatment options. Immunotherapeutic strategies have emerged as a promising avenue in oncology, with the potential to revolutionize treatment approaches for cutaneous malignancies. Objectives: This literature review aims to undertake an in-depth examination of immunotherapeutic strategies for melanoma, SCC, and BCC. Specifically, the review focuses on the role of immune checkpoint inhibitors, adoptive cell therapies, and emerging immunotherapies, assessing their impact on treatment outcomes, survival rates, and patient quality of life. Methods: A literature search was conducted using databases such as PubMed, Google Scholar, and Scopus. The search terms included “cutaneous oncology”, “immunotherapy”, “immune checkpoint inhibitors”, “adoptive cell therapy”, “melanoma”, “cutaneous squamous cell carcinoma”, and “basal cell carcinoma”. Peer-reviewed articles published in the last 10 years that reported clinical outcomes from immunotherapy-based treatments for cutaneous malignancies were included. The studies were reviewed and analyzed based on their reported clinical outcomes, including survival rates, adverse events, and quality of life metrics. Results: Our review identified significant advancements in immunotherapeutic strategies for cutaneous oncology. Immune checkpoint inhibitors, such as pembrolizumab and nivolumab, demonstrated improved overall survival rates, particularly in melanoma patients. In addition, adoptive cell therapies, including tumor-infiltrating lymphocyte (TIL) therapies, showed promise in managing both cutaneous SCC and BCC, with reported reductions in tumor burden and durable responses. Emerging immunotherapies, such as cancer vaccines and oncolytic viruses, are in early clinical trials but exhibit potential in enhancing antitumor immunity and expanding treatment options. Conclusions: Immunotherapeutic strategies represent a critical advancement in the management of cutaneous malignancies, offering improved outcomes compared to traditional therapies. Immune checkpoint inhibitors and adoptive cell therapies are already reshaping clinical practice, while emerging immunotherapies provide exciting avenues for future research. These therapies not only enhance survival rates but also reduce systemic toxicities, representing a transformative approach to treating skin cancer. Further research and clinical trials are needed to refine these strategies and expand their applicability to a broader patient population. 展开更多
关键词 Cutaneous Oncology Advanced Melanoma IMMUNOTHERAPY TREATMENT Novel Treatment approaches
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Probabilistic Analysis of Slope Using Finite Element Approach and Limit Equilibrium Approach around Amalpata Landslide of West Central, Nepal
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作者 Mahendra Acharya Khomendra Bhandari +2 位作者 Sandesh Dhakal Aasish Giri Prabin Kafle 《International Journal of Geosciences》 CAS 2024年第5期416-432,共17页
The stability study of the ongoing and recurring Amalpata landslide in Baglung in Nepal’s Gandaki Province is presented in this research. The impacted slope is around 200 meters high, with two terraces that have diff... The stability study of the ongoing and recurring Amalpata landslide in Baglung in Nepal’s Gandaki Province is presented in this research. The impacted slope is around 200 meters high, with two terraces that have different slope inclinations. The lower bench, located above the basement, consistently fails and sets others up for failure. The fluctuating water level of the slope, which travels down the slope masses, exacerbates the slide problem. The majority of these rocks are Amalpata landslide area experiences several structural disruptions. The area’s stability must be evaluated in order to prevent and control more harm from occurring to the nearby agricultural land and people living along the slope. The slopes’ failures increase the damages of house existing in nearby area and the erosion of the slope. Two modeling techniques the finite element approach and the limit equilibrium method were used to simulate the slope. The findings show that, in every case, the terrace above the basement is where the majority of the stress is concentrated, with a safety factor of near unity. Using probabilistic slope stability analysis, the failure probability was predicted to be between 98.90% and 100%. 展开更多
关键词 Finite Element approach Limit Equilibrium Method SLOPE Factor of Safety
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“Instruction-Category” Approach of Test Suite Construction for Oven Embedded System
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作者 Mengqing Tanli Jiyi Xiao Ying Zhang 《Journal of Software Engineering and Applications》 2024年第9期713-730,共18页
Being different from testing for popular GUI software, the “instruction-category” approach is proposed for testing embedded system. This approach is constructed by three steps including refining items, drawing instr... Being different from testing for popular GUI software, the “instruction-category” approach is proposed for testing embedded system. This approach is constructed by three steps including refining items, drawing instruction-brief and instruction-category, and constructing test suite. Consequently, this approach is adopted to test oven embedded system, and detail process is deeply discussed. As a result, the factual result indicates that the “instruction-category” approach can be effectively applied in embedded system testing as a black-box method for conformity testing. 展开更多
关键词 “Instruction-Category” approach Test Suite Construction Embedded System
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