BACKGROUND:With the development of oral implantology,implant restoration has gradually become the first choice of restoration after missing teeth,and bone augmentation procedures have led to the expansion of implant indications and the improvement of the success rate of implant restoration.However,the long-term stability of bone height,width and volume after bone augmentation surgery has been one of the clinical difficulties for oral implantologists.OBJECTIVE:To measure and analyze the bone width,height,and volume of different sites in the bone augmentation area at different time points using cone-beam CT and an automatic image alignment program.METHODS:Seventeen patients with severe bone defects in the upper anterior region who underwent Onlay bone block grafting in the external oblique region were recruited from the Department of Stomatology,Zhejiang Tongde Hospital.There were 10 males and 7 females,with a mean age of(45.88±12.47)years.The cone-beam CT scans of the patients' Onlay bone grafts were taken at five time points:preoperatively,immediately postoperatively,6 months postoperatively,immediately post implantation,and 6 months post implantation,and then were statistically analyzed for alveolar bone volume,width,and height in the bone augmentation area,as well as for the difference in the alveolar bone volume of the bone incremental area between patients of different sexes and age.RESULTS AND CONCLUSION:(1)The alveolar bone volume in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P＜0.05)as well as was higher immediately after bone grafting than 6 months after bone grafting(P＜0.05).The alveolar bone height in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P＜0.05).The horizontal width of the alveolar bone at various sites in the bone augmentation area immediately and 6 months after bone grafting was higher than that before bone grafting(P＜0.05).(2)There was no significant difference in the volume of bone graft resorption at various sites in the bone augmentation area between males and females immediately and 6 months after bone grafting(P＞0.05).Pearson correlation analysis showed a positive correlation between age and the change in bone augmentation area volume immediately and 6 months after bone grafting,but the difference was not statistically significant(P＞0.05).(3)Twenty-five dental implants with completed implant restorations functioned normally,and the survival rate of the implants was 100％.To conclude,Onlay bone graft implant restoration in the upper anterior region can significantly improve insufficient bone with favorable outcomes.However,there is some amount of bone resorption in the bone augmentation area at 6 months after Onlay bone grafting and it is necessary to open up the second surgical area.Clinicians should consider different bone augmentation procedures in accordance with the specific circumstances.

BACKGROUND:3D-printed bone tissue engineering scaffolds have obvious advantages in the research and clinical treatment of bone defect repair.As one of the important raw materials for 3D printed bone scaffolds,poly-L-lactic acid has a great potential for application in performing bone defect repair,but clinical patients with different bone defect causative factors have different requirements for the comprehensive performance of poly-L-lactic acid bone scaffolds.OBJECTIVE:To summarize and review the development of 3D printing technology and poly-L-lactic acid scaffolds and the design strategies chosen for scaffolds for bone repair in the setting of bone diseases such as osteomyelitis,bone tumor,osteonecrosis,and osteoporosis.METHODS:Literature from CNKI,WanFang,PubMed,Science Direct,and Web of Science databases were searched and screened from 1994 to 2024.Search terms were"3D printing,polylactic acid,bone tissue engineering scaffold,osteomyelitis,bone tumor,osteonecrosis,osteoporosis,bone defect"in Chinese and English.The screened 62 articles were systematically summarized and analyzed.RESULTS AND CONCLUSION:(1)Poly-L-lactic acid is considered to be an ideal raw material for artificial bone scaffold design due to its non-toxicity,processability,biocompatibility,and ability to self-degrade in the human environment.The application of 3D printing technology has enabled poly-L-lactic acid bone scaffolds to meet the multilayered and porous structural design requirements of biomimetic artificial bone repair materials,and to optimize the mechanical properties for better bone repair.(2)According to different bone disease microenvironments,timely adjustment of the functional design of poly-L-lactic acid scaffolds is important for the comprehensive osteogenic efficacy of the scaffolds.The article discusses the application of poly-L-lactic acid scaffolds in bone disease environments such as osteomyelitis,bone tumor,osteonecrosis,and osteoporosis,and highlights the importance of rationally grasping the timing of bone disease treatment and bone tissue regeneration for bone defects caused by different bone diseases.(3)Although poly-L-lactic acid scaffolds show potential in bone repair,there are still some problems,such as the need to further optimize the structural design of the scaffolds to fit new bone regeneration,enhance the bioactivity of the scaffolds,and take into account other functions(e.g.,antimicrobial,anti-tumor,and anti-osteoporosis)in order to adapt to the needs of bone tissue repair in different pathological environments.

BACKGROUND:The number of patients receiving total knee arthroplasty has been increasing globally each year.Pain management is a crucial aspect following total knee arthroplasty,as effective pain control can facilitate early mobilization,reduce complications,enhance patient satisfaction,and accelerate the rehabilitation process.OBJECTIVE:To construct a visual map of post-total knee arthroplasty pain,understand the international research status and trends in this field,and provide a reference for future studies.METHODS:Relevant research articles on post-total knee arthroplasty pain were retrieved from the CNKI,WanFang Data,and Web of Science core databases,covering the period from January 2000 to December 2023.The CiteSpace software(version 6.2.3)was used to analyze the annual publication output,authors,institutions,countries,keywords,and references.Utilizing R programming language(version 4.4.1),a database was established to create line charts and bar graphs.RESULTS AND CONCLUSION:(1)Our analysis included 3 796 publications,predominantly in Chinese(3 509 articles)with the remainder in English(287 articles).(2)The United States was the most productive country in English literature,with Harvard University leading institutional output.Guangzhou University of Chinese Medicine was the top publishing institution in Chinese literature.(3)Keyword clustering identified"quality of life,""phobia,"and"acupuncture"as emerging focal points in Chinese literature,while"satisfaction"and"psychological factors"were prominent in English literature over the past five years.Co-occurrence and clustering analysis revealed dense internal connections among institutions,authors,and publications,but sparse external collaborations.(4)The study's bias on visualization analysis may have introduced bias by excluding less influential papers.(5)Regarding research hotspots,domestic research emphasized the efficacy and exploration of analgesic methods,in contrast to international research that focused on pain mechanism subtyping and analgesic drug innovation.Future research is expected to trend towards traditional Chinese medicine for postoperative pain,multimodal analgesia,and the investigation and prevention of pain typing mechanisms.

BACKGROUND:The number of patients receiving total knee arthroplasty has been increasing globally each year.Pain management is a crucial aspect following total knee arthroplasty,as effective pain control can facilitate early mobilization,reduce complications,enhance patient satisfaction,and accelerate the rehabilitation process.OBJECTIVE:To construct a visual map of post-total knee arthroplasty pain,understand the international research status and trends in this field,and provide a reference for future studies.METHODS:Relevant research articles on post-total knee arthroplasty pain were retrieved from the CNKI,WanFang Data,and Web of Science core databases,covering the period from January 2000 to December 2023.The CiteSpace software(version 6.2.3)was used to analyze the annual publication output,authors,institutions,countries,keywords,and references.Utilizing R programming language(version 4.4.1),a database was established to create line charts and bar graphs.RESULTS AND CONCLUSION:(1)Our analysis included 3 796 publications,predominantly in Chinese(3 509 articles)with the remainder in English(287 articles).(2)The United States was the most productive country in English literature,with Harvard University leading institutional output.Guangzhou University of Chinese Medicine was the top publishing institution in Chinese literature.(3)Keyword clustering identified"quality of life,""phobia,"and"acupuncture"as emerging focal points in Chinese literature,while"satisfaction"and"psychological factors"were prominent in English literature over the past five years.Co-occurrence and clustering analysis revealed dense internal connections among institutions,authors,and publications,but sparse external collaborations.(4)The study's bias on visualization analysis may have introduced bias by excluding less influential papers.(5)Regarding research hotspots,domestic research emphasized the efficacy and exploration of analgesic methods,in contrast to international research that focused on pain mechanism subtyping and analgesic drug innovation.Future research is expected to trend towards traditional Chinese medicine for postoperative pain,multimodal analgesia,and the investigation and prevention of pain typing mechanisms.

BACKGROUND:With the development of oral implantology,implant restoration has gradually become the first choice of restoration after missing teeth,and bone augmentation procedures have led to the expansion of implant indications and the improvement of the success rate of implant restoration.However,the long-term stability of bone height,width and volume after bone augmentation surgery has been one of the clinical difficulties for oral implantologists.OBJECTIVE:To measure and analyze the bone width,height,and volume of different sites in the bone augmentation area at different time points using cone-beam CT and an automatic image alignment program.METHODS:Seventeen patients with severe bone defects in the upper anterior region who underwent Onlay bone block grafting in the external oblique region were recruited from the Department of Stomatology,Zhejiang Tongde Hospital.There were 10 males and 7 females,with a mean age of(45.88±12.47)years.The cone-beam CT scans of the patients' Onlay bone grafts were taken at five time points:preoperatively,immediately postoperatively,6 months postoperatively,immediately post implantation,and 6 months post implantation,and then were statistically analyzed for alveolar bone volume,width,and height in the bone augmentation area,as well as for the difference in the alveolar bone volume of the bone incremental area between patients of different sexes and age.RESULTS AND CONCLUSION:(1)The alveolar bone volume in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P＜0.05)as well as was higher immediately after bone grafting than 6 months after bone grafting(P＜0.05).The alveolar bone height in the bone augmentation area was higher immediately and 6 months after bone grafting than before bone grafting(P＜0.05).The horizontal width of the alveolar bone at various sites in the bone augmentation area immediately and 6 months after bone grafting was higher than that before bone grafting(P＜0.05).(2)There was no significant difference in the volume of bone graft resorption at various sites in the bone augmentation area between males and females immediately and 6 months after bone grafting(P＞0.05).Pearson correlation analysis showed a positive correlation between age and the change in bone augmentation area volume immediately and 6 months after bone grafting,but the difference was not statistically significant(P＞0.05).(3)Twenty-five dental implants with completed implant restorations functioned normally,and the survival rate of the implants was 100％.To conclude,Onlay bone graft implant restoration in the upper anterior region can significantly improve insufficient bone with favorable outcomes.However,there is some amount of bone resorption in the bone augmentation area at 6 months after Onlay bone grafting and it is necessary to open up the second surgical area.Clinicians should consider different bone augmentation procedures in accordance with the specific circumstances.

BACKGROUND:3D-printed bone tissue engineering scaffolds have obvious advantages in the research and clinical treatment of bone defect repair.As one of the important raw materials for 3D printed bone scaffolds,poly-L-lactic acid has a great potential for application in performing bone defect repair,but clinical patients with different bone defect causative factors have different requirements for the comprehensive performance of poly-L-lactic acid bone scaffolds.OBJECTIVE:To summarize and review the development of 3D printing technology and poly-L-lactic acid scaffolds and the design strategies chosen for scaffolds for bone repair in the setting of bone diseases such as osteomyelitis,bone tumor,osteonecrosis,and osteoporosis.METHODS:Literature from CNKI,WanFang,PubMed,Science Direct,and Web of Science databases were searched and screened from 1994 to 2024.Search terms were"3D printing,polylactic acid,bone tissue engineering scaffold,osteomyelitis,bone tumor,osteonecrosis,osteoporosis,bone defect"in Chinese and English.The screened 62 articles were systematically summarized and analyzed.RESULTS AND CONCLUSION:(1)Poly-L-lactic acid is considered to be an ideal raw material for artificial bone scaffold design due to its non-toxicity,processability,biocompatibility,and ability to self-degrade in the human environment.The application of 3D printing technology has enabled poly-L-lactic acid bone scaffolds to meet the multilayered and porous structural design requirements of biomimetic artificial bone repair materials,and to optimize the mechanical properties for better bone repair.(2)According to different bone disease microenvironments,timely adjustment of the functional design of poly-L-lactic acid scaffolds is important for the comprehensive osteogenic efficacy of the scaffolds.The article discusses the application of poly-L-lactic acid scaffolds in bone disease environments such as osteomyelitis,bone tumor,osteonecrosis,and osteoporosis,and highlights the importance of rationally grasping the timing of bone disease treatment and bone tissue regeneration for bone defects caused by different bone diseases.(3)Although poly-L-lactic acid scaffolds show potential in bone repair,there are still some problems,such as the need to further optimize the structural design of the scaffolds to fit new bone regeneration,enhance the bioactivity of the scaffolds,and take into account other functions(e.g.,antimicrobial,anti-tumor,and anti-osteoporosis)in order to adapt to the needs of bone tissue repair in different pathological environments.

Objective To explore the mechanism of shikonin(SK)in the treatment of lipopolysaccha-ride(LPS)-induced myocarditis by regulating the galectin-1(Gal-1)/nuclear factor-erythroid 2 related factor 2(Nrf2)signaling pathway.Methods H9c2 cells were induced by LPS to establish an in vitro model of myocar-ditis,and were treated with different concentrations of SK for intervention.The cell counting kit-8(CCK-8)was used to detect cell viability,the TdT-mediated dUTP nick-end labeling(TUNEL)technique was used to detect cell apoptosis,the reactive oxygen species(ROS)kit was used to detect the ROS level,ELISA was used to detect the the levels of inflammatory indexes including interleukin(IL)-1β,tumor necrosis factor-α(TNF-α),IL-6 and the oxidative stress indexes including malondialdehyde(MDA)and superoxide dismutase(SOD).Polymerase chain reaction(PCR)and Western blot were used to detect the mRNA and protein ex-pressions of Gal-1 and Nrf2 respectively.Results Compared with the Ctrl group,the levels of ROS,IL-1β,TNF-α,IL-6 and MDA in the LPS group were increased,and the level of SOD was decreased,the differences were statistically significant(P＜0.05).Compared with the LPS group,the levels of ROS,IL-1β,TNF-α,IL-6 and MDA in the LPS+SK group were decreased,the level of SOD was increased,and the mRNA and protein expressions of Gal-1 were increased,the differences were statistically significant(P＜0.05);the levels of ROS,IL-1β,TNF-α,IL-6 and MDA in the LPS+Gal-1 group were decreased,and the level of SOD was in-creased,the differences were statistically significant(P＜0.05).Compared with the Ctrl group,the mRNA and protein expressions of Gal-1 in the LPS group were decreased,,the differences were statistically signifi-cant(P＜0.05);compared with the LPS group,the mRNA and protein expressions of Nrf2 in the LPS+Gal-1 group were increased,but those in the LPS+si-Gal-1 group were decreased,the differences were statistically significant(P＜0.05).Conclusion SK may exert anti-inflammatory and antioxidant stress effects by up-regu-lating the expression of Gal-1/Nrf2 pathway,and thus improve LPS-induced myocarditis.

Objective Guided by the"central-peripheral-central"theory,this study analyzed the influ-ence of repeated transcranial magnetic stimulation(rTMS)combined with intelligent rehabilitation robot hand training on the rehabilitation effect of stroke patients in the convalesce stage,in order to provide more new ide-as for clinical patients.Methods A total of 86 stroke patients who were treated in the department of rehabili-tation in Integrated Traditional and Western Medicine Hospital of Linping District,Hangzhou from July 2021 to July 2024 were prospectively selected and divided into observation group(n=43)and control group(n=43)by random number table method.The observation group received rTMS based"central-peripheral-central"theory combined with intelligent rehabilitation robot hand training on the basis of routine rehabilitation,while the control group received intelligent rehabilitation robot hand training combined with rTMS pseudo-stimula-tion intervention on the basis of routine rehabilitation.The changes of upper Fugl-Meyer motor function as-sessment(FMA),Modified Barthel Index(MBI),upper limb movement pattern(Brunnstrom Staging Scale)and joint motion before and after intervention were recorded in two groups.Results After intervention,the scores of FMA and MBI in two groups were higher than before intervention,and the observation group was significantly higher than that of the control group(P＜0.05).After intervention,the rate of patients in Brunnstrom stage Ⅱ was decreased,while the rates of patients in Brunnstrom stage Ⅲ and Ⅳ were increased,and the observation group was better than the control group(P＜0.05).After the intervention,the motion degrees of shoulder forward flexion,shoulder abduction,shoulder back extension,elbow flexion,elbow exten-sion,forearm pronation,forearm pronation,carpal palm flexion and wrist back extension in two groups were significantly higher than that before the intervention,and the observation group was significantly higher than the control group(P＜0.05).Conclusion Intelligent rehabilitation robot hand training combined with rTMS can improve upper limb active joint motion,upper limb motor function and daily living ability of stroke pa-tients in the convalescence period.

Objective To explore the compatibility and combination patterns of traditional Chinese medicine(TCM)formulas in treating kidney deficiency and blood stasis type osteoporosis,to identify the most frequently used drug pairs,and to explore their mechanisms of action in treating kidney deficiency and blood stasis type osteoporosis through network pharmacology and molecular docking,providing theoretical guidance for clinical medication.Methods Formulas used for treating kidney deficiency and blood stasis type osteopo-rosis in the past 10 years were screened from databases such as CNKI and Wanfang.SPSS,Origin,and IBM SPSS Modeler software were used for frequency,taste and meridian statistics,and drug combination analysis.Cluster analysis was applied to identify the core drug combinations.The best drug pair for treating kidney de-ficiency and blood stasis type osteoporosis was selected.Network pharmacology analysis was conducted on this drug pair to identify core targets,main components,and signaling pathways.Molecular docking was performed using AutoDockTools,AutoDock Vina,and PyMOL software to further verify the possibility of their interac-tions.Results A total of 117 formulas containing 148 TCMs were screened out.The frequently used drugs and combinations were mainly kidney-yang and kidney-yin tonics and blood-activating and stasis-eliminating drugs,with sweet and warm tastes,mostly attributed to the liver and kidney meridians.Further cluster analy-sis of drugs with a frequency greater than 20 yielded five categories.The Epimedium-Bupleurum combination was selected for network pharmacology analysis,which identified 89 targets.Core targets included STAT3,IL-6,and JUN.Main components were cryptotanshinone,kaempferol,luteolin,and quercetin.Molecular docking was performed on the main components and core targets to verify the treatment effect of the drugs on osteopo-rosis.Conclusion TCM treatment of kidney deficiency and blood stasis type OP mainly focuses on tonifying the liver and kidney and activating blood circulation to remove stasis,supplemented by tonifying the spleen and boosting qi.This can provide a theoretical basis for the clinical treatment of OP.Additionally,the Epime-dium-Bupleurum drug pair can exert therapeutic effects on osteoporosis through a multi-target and multi-pathway mechanism,laying the foundation for subsequent experiments and clinical applications.

Objective To construct a predictive model for ulcer recurrence in patients with lower limb venous ulcers based on logistic regression analysis.Methods A total of 198 patients with lower limb venous ulcers admitted to our hospital from January 2022 to June 2023 were selected as research subjects.All patients received surgical treatment and were divided into recurrence and non-recurrence groups based on postoperative recurrence status.Clinical data including general information,lifestyle habits,comorbidities,postoperative be-haviors,and surgical details were collected.Univariate and multivariate logistic regression analyses were used to identify risk factors for ulcer recurrence and construct a predictive model.The Hosmer-Lemeshow test was used to evaluate the goodness-of-fit of the model,while ROC curves and AUC assessed predictive perform-ance.Results Among 198 patients with lower limb venous ulcers,44 experienced postoperative ulcer recur-rence(22.22%recurrence rate).Age≥65 years,superficial femoral valve repair,non-compliance,and high ligation of the great saphenous vein were independent risk factors for recurrence(P<0.05).The model's AUC was 0.926(95%CI:0.865 to 0.987).Conclusion The predictive model for ulcer recurrence in lower limb venous ulcer patients demonstrates high clinical value for guiding early intervention and prevention.