Postoperative infection of internal fixation of closed fractures the lower limbs in adults represents a devastating complication, characterized by diagnostic challenges, prolonged treatment duration and high disability rates. Current management of these infections faces multiple challenges, such as difficulties in early accurate diagnosis, and various controversies about the treatment plan, leading to poor overall diagnosis and treatment results. To address these issues, based on evidence-based medicine and principles with emphasis on scientific rigor, clinical applicability and innovation, the Trauma Branch of the Chinese Medical Association, Orthopedic Branch of the Chinese Medical Doctor Association, Orthopedics Branch of the Chinese Medical Association, and Trauma Orthopedics and Polytrauma Group of the Resuscitation and Emergency Committee of the Chinese Medical Doctor Association have collaboratively organized a panel of relevant experts to develop the Guideline for diagnosis and treatment of infection after internal fixation of closed lower limb fractures in adults ( version 2025). The guideline proposed 10 recommendations, aiming to provide a foundation for standardized diagnosis and treatment of postoperative infection in adults with closed lower limb fractures.

The construction of the Chinese trauma care system has evolved from its initial stage to gradual development and expansion. In 2005, Peking University Traffic Medicine Center, which focused on traffic injury treatment and research, was established by Peking University People′s Hospital in collaboration with the emergency, trauma, and neurosurgery departments of Peking University First Hospital and Third Hospital. In 2010, Peking University Traffic Medicine Center led specialized scientific research projects and conducted pilot programs in multiple regions so that a regional closed-loop trauma care system which centered on comprehensive hospitals was established and a "Chinese model" for trauma care was developed. In 2016, China Trauma Rescue & Treatment Association was established so as to promote the construction of trauma care service system, the spread of the idea, and the information interconnection. In 2019, the National Center for Trauma Medicine was established and played a significant role in the clinical diagnosis and treatment, education and training, scientific research, and public rescue effort. Up to now, a multi-level trauma care system has been formed in china. In the paper, the authors elaborated the construction of the trauma care system and establishment of a national-level trauma care platform and foresaw the future development of trauma medicine in China.

The construction of the Chinese trauma care system has evolved from its initial stage to gradual development and expansion. In 2005, Peking University Traffic Medicine Center, which focused on traffic injury treatment and research, was established by Peking University People′s Hospital in collaboration with the emergency, trauma, and neurosurgery departments of Peking University First Hospital and Third Hospital. In 2010, Peking University Traffic Medicine Center led specialized scientific research projects and conducted pilot programs in multiple regions so that a regional closed-loop trauma care system which centered on comprehensive hospitals was established and a "Chinese model" for trauma care was developed. In 2016, China Trauma Rescue & Treatment Association was established so as to promote the construction of trauma care service system, the spread of the idea, and the information interconnection. In 2019, the National Center for Trauma Medicine was established and played a significant role in the clinical diagnosis and treatment, education and training, scientific research, and public rescue effort. Up to now, a multi-level trauma care system has been formed in china. In the paper, the authors elaborated the construction of the trauma care system and establishment of a national-level trauma care platform and foresaw the future development of trauma medicine in China.

Postoperative infection of internal fixation of closed fractures the lower limbs in adults represents a devastating complication, characterized by diagnostic challenges, prolonged treatment duration and high disability rates. Current management of these infections faces multiple challenges, such as difficulties in early accurate diagnosis, and various controversies about the treatment plan, leading to poor overall diagnosis and treatment results. To address these issues, based on evidence-based medicine and principles with emphasis on scientific rigor, clinical applicability and innovation, the Trauma Branch of the Chinese Medical Association, Orthopedic Branch of the Chinese Medical Doctor Association, Orthopedics Branch of the Chinese Medical Association, and Trauma Orthopedics and Polytrauma Group of the Resuscitation and Emergency Committee of the Chinese Medical Doctor Association have collaboratively organized a panel of relevant experts to develop the Guideline for diagnosis and treatment of infection after internal fixation of closed lower limb fractures in adults ( version 2025). The guideline proposed 10 recommendations, aiming to provide a foundation for standardized diagnosis and treatment of postoperative infection in adults with closed lower limb fractures.

Objective: To explore the relationship between adolescent sports participation and aggression, so as to provide a reference basis for sports interventions aimed at reducing adolescent aggression. Methods: The search databases used in the study included China National Knowledge Infrastructure, Vipo, Wanfang, Web of Science, Ebsco, Pro Quest, and PubMed, and the search period was from the construction of the database to October 22, 2023. The search terms for sports participation were "sport" "exercise" "exercise" "physical activity" "physical activity"; the search terms for aggressive behavior were "assault" "aggressive behavior" "aggression"; the search terms for aggressive behavior were "assault" "aggressive behavior" "aggression" "bullying", and "violence", and the above keywords were jointly searched. Foreign language data were searched using Web of Science, Ebsco, Pro Quest, PubMed and supplemented by Google Scholar. The search terms for sports participation were sport, athletics, exercise, train, fitness, physical exercise, physical activity, physical education; and the search terms for aggressive behavior were aggression, bullying, violence, atrocity, fighting, aggressive behavior, physical assault; the above keywords were jointly searched. Statistical analysis was performed using CMA 3.0 software. Results: A total of 20 studies with 80 effect sizes and 9 308 subjects were included. The Metaanalysis showed that adolescent sports participation was moderately negatively correlated with indicators of aggression (r=-0.11), physical aggression (r=-0.14), verbal aggression (r=-0.14), and hostility (r=-0.16), and weakly negatively correlated with indicators of anger (r=-0.08) (P<0.05). Aggressive behavior was influenced by gender, school stage, mode of exercise, and the sports participants region (P<0.05). Conclusions Exercise participation has a positive impact on reducing aggressive behavior in adolescents, and mode of exercise, age, gender, and region are moderating variables in the relationship. Schools can reduce adolescent aggression by developing exercise and physical education interventions.

Trauma is recognized globally as a great public health challenge.It stands as the predomi-nant cause of mortality among those under the age of 45 and is also ranked among the top five causes of death for both urban and rural populations within China.This stark reality underscores the critical urgen-cy in establishing an efficient system for trauma care,which is pivotal for substantially enhancing the sur-vival rates of patients.An optimally developed system for trauma care not only guarantees that patients promptly receive professional medical assistance but also facilitates significant improvements in the out-comes of trauma care through the strategic establishment of trauma centers.At present,a considerable variation exists in the quality of trauma care provided across various regions within China.The adoption of comprehensive quality management strategies for the medical processes involved in trauma care,alongside the standardized management of on-site rescue operations,pre-hospital emergency care,and in-hospital treatment protocols,stands as a fundamental approach to boost the capabilities of trauma care and,conse-quently,the survival rates of trauma patients.Serving as the cornerstone of comprehensive medical quali-ty management,key quality control indicators possess the capacity to steer the development direction of trauma centers.In a concerted effort to further augment the medical quality management of trauma care,standardize clinical diagnosis and treatment methodologies,and advocate for the standardization and ho-mogenization of medical services,the Medical Quality Control Professional Committee of the National Center for Trauma Medicine has undertaken a detailed refinement and update of the 16 key quality control indicators for trauma centers.These were initially put forward in the"Notice on Further Enhancing Trau-ma Care Capabilities"disseminated by the National Health Commission in 2018.Consequent to this en-deavor,a revised set of 19 quality control indicators has been devised.This comprehensive set,inclusive of the indicators'names,definitions,calculation methodologies,significance,and the subjects for quali-ty control,is designed for utilization within the quality management and control operations of trauma cen-ters across various levels.This initiative aims to furnish a concrete and executable roadmap for the quality control endeavors of trauma centers.Through the enactment of these quality control indicators,medical institutions are empowered to conduct more stringent monitoring and evaluative measures across all facets of trauma care.This not only facilitates the prompt identification and rectification of existing challenges but also substantially boosts the efficiency of internal collaboration.It enhances the synergy between dif-ferent departments,thereby markedly improving the efficiency and quality of trauma care.

As the National Health Commission changes the management of novel corona virus infection, the situation and preventive policies for controlling the epidemic have also entered a new stage in China. Perioperative care strategies for orthopedic trauma such as designated isolation and nucleic acid test screening have also been adjusted in the new stage. Based on the perioperative work experiences in the new stage of epidemic from the frontline anti-epidemic staff of orthopedics in domestic hospitals and combined with the literature and relevant evidence-based medical data in perioperative care of orthopedic trauma patients under the current anti-epidemic policies at home and abroad, Chinese Orthopedic Association and Chinese Society of Traumatology organized relevant experts to formulate the Guideline for clinical perioperative care of orthopedic trauma patients in the new stage of novel corona virus infection ( version 2023). The guideline summarized 16 recommendations from the aspects of preoperative diagnosis and treatment, infection prevention, emergency operation and postoperative management to systematically standardize the perioperative clinical pathways, diagnosis and treatment processes of orthopedic trauma in the new stage of novel corona virus infection, so as to provide a guidance and reference for hospitals at all levels to carry out relevant work in current epidemic control policies.

Chronic refractory wound (CRW) is one of the most challengeable issues in clinic due to complex pathogenesis, long course of disease and poor prognosis. Experts need to conduct systematic summary for the diagnosis and treatment of CRW due to complex pathogenesis and poor prognosis, and standard guidelines for the diagnosis and treatment of CRW should be created. The Guideline forthe diagnosis and treatment of chronic refractory wounds in orthopedic trauma patients ( version 2023) was created by the expert group organized by the Chinese Association of Orthopedic Surgeons, Chinese Orthopedic Association, Chinese Society of Traumatology, and Trauma Orthopedics and Multiple Traumatology Group of Emergency Resuscitation Committee of Chinese Medical Doctor Association after the clinical problems were chosen based on demand-driven principles and principles of evidence-based medicine. The guideline systematically elaborated CRW from aspects of the epidemiology, diagnosis, treatment, postoperative management, complication prevention and comorbidity management, and rehabilitation and health education, and 9 recommendations were finally proposed to provide a reliable clinical reference for the diagnosis and treatment of CRW.

Lower extremity deep vein thrombosis (DVT) is one of the main complications in patients with traumatic fractures, and for severe patients, the DVT can even affect arterial blood supply, resulting in insufficient limb blood supply. If the thrombus breaks off, pulmonary embolism may occur, with a high mortality. The treatment and rehabilitation strategies of thrombosis in patients with lower extremity fractures have its particularity. DVT in traumatic fractures patients has attracted extensive attention and been largely studied, and the measures for prevention and treatment of DVT are constantly developing. In recent years, a series of thrombosis prevention and treatment guidelines have been updated at home and abroad, but there are still many doubts about the prevention and treatment of DVT in patients with different traumatic fractures. Accordingly, on the basis of summarizing the latest evidence-based medical evidence at home and abroad and the clinical experience of the majority of experts, the authors summarize the clinical treatment and prevention protocols for DVT in patients with traumatic fractures, and make this consensus on the examination and assessment, treatment, prevention and preventive measures for DVT in patients with different fractures so as to provide a practicable approach suitable for China ′s national conditions and improve the prognosis and the life quality of patients.

Objective:To investigate the clinical effect and safety of mid-face lifting combined with compound fat transplantation in facial rejuvenation.Methods:From October 2016 to May 2020, 26 patients with mid-facial aging were enrolled, including 10 males and 16 females, with an average age of (47±6) years (38-65 years). The facial superficial musculoaponeurotic system was stripped, folded and suspended through the temporal hairline incision to lift the middle of the face. Liposuction was performed and compound fat was prepared, in which structural fat was injected into the area marked with loss of facial volume before operation, and extravascular matrix component gel was injected into the static wrinkle dermis. Six and 12 months after operation, the global aesthetic improvement scale of the observer and the global aesthetic improvement scale of the patient were scored, and the postoperative complications and patients＇ satisfaction were counted.Results:At the end of 6 months, improvements in mid face were reported in all patients by blinded reviewers. 12 months after operation, 53.8% (14 cases) of patients had significant improvement in facial aging, 30.8% (8 cases) had moderate improvement, and 15.4% (4 cases) had slight improvement; 25 patients (96%) were satisfied with the postoperative results. Postoperative hemorrhage occurred in one patient, scar hyperplasia occurred in one patient, and no obvious complications occurred in the other patients.Conclusions:The method of midface lifting combined with compound fat transplantation can improve the facial soft tissue and supplement the facial missing capacity, improve the static wrinkles of the face, and comprehensively solve the aging problem of midface. It has a definite clinical effect, fewer complications, and is safe and reliable. It has definite clinical effect with less complications.