With advancements in radiology,endoscopic techniques,surgical treatments,cell biology and molecular biology,the un-derstanding of temporomandibular disorders(TMD)has increased.The temporomandibular joint(TMJ)is a complex structure comprising both soft and hard tissues.Within the TMJ,the temporomandibular disc is a soft tissue structure that connects the mandible to the skull,providing cushioning and stability during joint movement.Different imaging techniques have their own advantages and limi-tations in the diagnosis and treatment of TMD.Therefore,using image registration technology to assess the condition and position of the articular disc provides new research perspectives for evaluating TMD,which may contribute to the diagnosis and treatment.This article reviews the latest advancements in TMJ imaging,explores the applications of various image registration techniques,particularly in the context of TMD diagnosis and treatment,and discusses future prospects.Combining the research results of some scholars at home and a-broad with the author’s clinical experience,the article aims to provide valuable insights for clinicians.

Objective To clarify the influencing factors of defensive medicine and provide ideas for preventing and re-solving defensive medicine.Methods Literature related to defensive medicine was searched,personnel related to de-fensive medicine were interviewed,and literature and interview data were coded with the method of grounded theo-ry,and related concepts and categories were summarized.Results After three levels of coding,52 initial concepts,23 initial categories,7 sub-categories and 3 main categories were sorted out,and the correlation among influencing factors was analyzed to build a three-dimensional model of"doctor-patient relationship-institutional system-social environment"influencing factors and their mechanism of action.Conclusion The influencing factors of defensive medi-cine mainly include doctor-patient relationship,institutional system and social environment.The three factors have an impact on defensive medicine through different mechanisms of action,which provides qualitative evidence for comprehensive analysis of factors in related studies of defensive medicine.

Objective To understand the status of behavioral intentions of defensive medical treatment in medical students,and explore the relationship between practice environment and behavioral intentions of defensive medical treatment.To provide reference for reducing the tendency of defensive medicine(DM)behavior of medical students and improving the negative effects of DM.Methods A web-based questionnaire survey was conducted among medi-cal students in four medical colleges in Heilongjiang Province.The structural equation modeling of the relationship be-tween practice environment and behavioral intentions of defensive medical treatment in medical students was con-structed by Amos 26.0 software.Results The mean score of medical students'behavioral intentions of positive and negarive defensive medical treatment was 44.49-6.90 and 20.06-6.83,respectively.The behavioral intention of posi-tively defensive medical treatment was positively associated(β=0.892,P＜0.05)with cognition of doctor-patient relationship.While the behavioral intention of negative defensive medical treatment was positively correlated(β=0.403,0.343,P＜0.05)with environment cognition,perception of risk and negatively correlated(β=-0.726,P＜0.05)with cognition of doctor-patient relationship.As an intermediary variable,the direct and indirect effects of cog-nition of doctor-patient relationship on negative defensive medical behavior tendency were-0.470 and 0.043,the difference was statistically significant(P＜0.05).Conclusion Improving cognition of medical students'doctor-pa-tient relationship is beneficial to understand defensive medical treatment for medical students.The negative defen-sive medical behavior tendency of medical students should be reduced by reducing their negative cognition of environ-ment or improving their cognition of doctor-patient relationship.

The widespread application of implantable materials has brought about a corresponding increase in implant-related complications, with implant-associated infections being the most critical. Biofilms, which often form on these implants, can significantly impede the effectiveness of traditional antibiotic therapies. Therefore, strategies such as surgical removal of infected implants and prolonged antibiotic treatment have been acknowledged as effective measures to eradicate these infections. However,the challenges of antibiotic resistance and biofilm persistence often result in recurrent or hard-to-control infections, posing severe health threats to patients. Recent studies suggest that phages, a type of virus, can directly eliminate pathogenic bacteria and degrade biofilms. Furthermore, clinical trials have demonstrated promising therapeutic results with the combined use of phages and antibiotics. Consequently, this innovative therapy holds significant potential as an effective solution for managing implant-associated infections. This paper rigorously investigates and evaluates the potential value of phage therapy in addressing orthopedic implant-associated infections, based on a comprehensive review of relevant scientific literature.

Objective To clarify the influencing factors of defensive medicine and provide ideas for preventing and re-solving defensive medicine.Methods Literature related to defensive medicine was searched,personnel related to de-fensive medicine were interviewed,and literature and interview data were coded with the method of grounded theo-ry,and related concepts and categories were summarized.Results After three levels of coding,52 initial concepts,23 initial categories,7 sub-categories and 3 main categories were sorted out,and the correlation among influencing factors was analyzed to build a three-dimensional model of"doctor-patient relationship-institutional system-social environment"influencing factors and their mechanism of action.Conclusion The influencing factors of defensive medi-cine mainly include doctor-patient relationship,institutional system and social environment.The three factors have an impact on defensive medicine through different mechanisms of action,which provides qualitative evidence for comprehensive analysis of factors in related studies of defensive medicine.

Objective To understand the status of behavioral intentions of defensive medical treatment in medical students,and explore the relationship between practice environment and behavioral intentions of defensive medical treatment.To provide reference for reducing the tendency of defensive medicine(DM)behavior of medical students and improving the negative effects of DM.Methods A web-based questionnaire survey was conducted among medi-cal students in four medical colleges in Heilongjiang Province.The structural equation modeling of the relationship be-tween practice environment and behavioral intentions of defensive medical treatment in medical students was con-structed by Amos 26.0 software.Results The mean score of medical students'behavioral intentions of positive and negarive defensive medical treatment was 44.49-6.90 and 20.06-6.83,respectively.The behavioral intention of posi-tively defensive medical treatment was positively associated(β=0.892,P＜0.05)with cognition of doctor-patient relationship.While the behavioral intention of negative defensive medical treatment was positively correlated(β=0.403,0.343,P＜0.05)with environment cognition,perception of risk and negatively correlated(β=-0.726,P＜0.05)with cognition of doctor-patient relationship.As an intermediary variable,the direct and indirect effects of cog-nition of doctor-patient relationship on negative defensive medical behavior tendency were-0.470 and 0.043,the difference was statistically significant(P＜0.05).Conclusion Improving cognition of medical students'doctor-pa-tient relationship is beneficial to understand defensive medical treatment for medical students.The negative defen-sive medical behavior tendency of medical students should be reduced by reducing their negative cognition of environ-ment or improving their cognition of doctor-patient relationship.

The widespread application of implantable materials has brought about a corresponding increase in implant-related complications, with implant-associated infections being the most critical. Biofilms, which often form on these implants, can significantly impede the effectiveness of traditional antibiotic therapies. Therefore, strategies such as surgical removal of infected implants and prolonged antibiotic treatment have been acknowledged as effective measures to eradicate these infections. However,the challenges of antibiotic resistance and biofilm persistence often result in recurrent or hard-to-control infections, posing severe health threats to patients. Recent studies suggest that phages, a type of virus, can directly eliminate pathogenic bacteria and degrade biofilms. Furthermore, clinical trials have demonstrated promising therapeutic results with the combined use of phages and antibiotics. Consequently, this innovative therapy holds significant potential as an effective solution for managing implant-associated infections. This paper rigorously investigates and evaluates the potential value of phage therapy in addressing orthopedic implant-associated infections, based on a comprehensive review of relevant scientific literature.

Objective To evaluate the clinical use of the baseline CT angiography(CTA)quantitative score(self-designed collateral circulation quantitative,SD-CCQ)in determining the collateral circulation compensation status in patients with acute ischemic stroke(AIS),as well as the reliability and accuracy of the SD-CCQ score and the Alberta Stroke Program Early CT Score(ASPECTS).Methods Retrospective analysis was made on the clinical and imaging data,including CT,CTA and DWI image data,of 84 patients who were admitted for acute ischemic stroke to the Department of Neurorehabilitation of Zhongshan Hospital of Traditional Chinese Medicine from January 2020 to December 2022.Their CTA source images were annotated using a multi-task deep learning method for vascular segmentation.The ASPECTS score and SD-CCQ score were then applied to the CTA images following vascular segmentation in order to assess the collateral circulation compensation of AIS patients.The Kappa test was used to assess the consistency of the two methods used to assess collateral circulation,and the multifactorial Logistic regression analysis was used to examine the relationship between the SD-CCQ and the prognosis of the AIS patients.Results ASPECTS score had good consistency with SD-CCQ score in evaluating collateral circulation in AIS patients(κ=0.65,P＜0.001),and the diagnostic accuracy of the latter for benign collateral circulation in AIS was 96.15％.Logistic regression analysis showed that the new collateral circulation score,baseline NIHSS,and DWI infarct volume were the main factors affecting the long-term prognosis of AIS patients.Conclusion The new scoring system SD-CCQ can be used to evaluate the compensatory status of collateral circulation in AIS patients,which may help in clinical treatment decision-making and prognosis prediction.

Objective:To conduct the genetic analysis of a family with one patient suffering from juvenile Parkinson's disease(JP)and discuss the clinical manifestations,genetic mutation characteristics,and treatment plans prompted by PRKN gene compound heterozygous mutations,and to enhance the clinicians'awareness of this disease.Methods:The clinical data of one patient with JP caused by PRKN gene mutations was analyzed,the clinical manifestations and genetic mutation features of the patient were summarized,and the related literatures were reviewed.Results:The patient,a 16-year-old male,was admitted to the hospital due to unstable gait,trembling limbs with rigidity in both lower limbs for three years.The examination results revealed a panic gait,clear consciousness,fluent speech,normal muscle strength in limbs,increased"gear-like"muscle tone in both upper limbs,and"lead-pipe"rigidity in both lower limbs;the sensory functions and tendon reflexes were normal.The head,neck,and thoracic magnetic resonance imaging(MRI)results showed no abnormalities.18F-fluorodeoxyglucose(18F-FDG)positron emission tomography/computed tomography(PET/CT)results showed that the head size and shape were normal,the glucose metabolism in the left cerebellum and middle temporal gyrus was slightly decreased,and the glucose metabolism in bilateral thalami,right frontal lobe,parietotemporal lobe,and left medial frontal lobe was increased.The dopamine transporter(DAT)PET/CT results showed that there was no radioactive distribution in the brain cortex and the DAT distribution in the posterior part of both striata was decreased.The whole-exome sequencing results showed the patient had two PRKN gene mutations,such as codons c.8T>A and c.850G>C compound heterozygous mutations,and each mutation was from one parent;the patient's father carried the c.8T>A mutation,the patient's mother carried the c.850G>C mutation,and the patient's sister had the same genetic mutation site as the patient's father.Conclusion:PRKN gene compound heterozygous mutations may be the basis of the disease in this family.Identification of the mutation c.8T>A expands the mutation spectrum of the PRKN gene,and provides the valuable information for the research on the pathogenic genetic mutations of the JP patients.

Objective To clarify the influencing factors of defensive medicine and provide ideas for preventing and re-solving defensive medicine.Methods Literature related to defensive medicine was searched,personnel related to de-fensive medicine were interviewed,and literature and interview data were coded with the method of grounded theo-ry,and related concepts and categories were summarized.Results After three levels of coding,52 initial concepts,23 initial categories,7 sub-categories and 3 main categories were sorted out,and the correlation among influencing factors was analyzed to build a three-dimensional model of"doctor-patient relationship-institutional system-social environment"influencing factors and their mechanism of action.Conclusion The influencing factors of defensive medi-cine mainly include doctor-patient relationship,institutional system and social environment.The three factors have an impact on defensive medicine through different mechanisms of action,which provides qualitative evidence for comprehensive analysis of factors in related studies of defensive medicine.