BACKGROUND:Individuals with chronic ankle instability are prone to inversion ankle sprains during landing.Moderately increasing the foot toe-out angle during landing may reduce the occurrence of inversion ankle sprains,but no studies have directly demonstrated this effect. OBJECTIVE:To explore the effect of increased toe-out angle during landing on the peak inversion angle,peak angular velocity,and the time to peak inversion among individuals with and without chronic ankle instability. METHODS:A total of 60 participants were recruited for this study,including 30 individuals with chronic ankle instability and 30 without chronic ankle instability.The study utilized a simulated sprain apparatus for drop-landing tests,featuring a platform that could tilt forward by 24° and inward by 15°,thus simulating the foot position during an ankle inversion sprain.Participants were required to perform drop-landing tests under two landing conditions:natural landing and toe-out landing,with the latter involving a greater foot toe-out angle,over 150%more than the former.Kinematic data of participants were recorded using a 12-camera three-dimensional motion capture system.Data analysis was conducted using two-way repeated measures analysis of variance and Spearman correlation analysis. RESULTS AND CONCLUSION:(1)Significant main effects of condition were found for peak inversion angle during drop-landing(P<0.001,η2 p=0.270),peak inversion velocity(P=0.015,η2 p=0.098),and peak inversion time(P<0.001,η2 p=0.260);a significant main effect of group was found for peak inversion velocity(P=0.029,η2 p=0.080).(2)There were significant negative correlations between the foot toe-out angle at landing and the peak ankle inversion angle(P=0.021,r=-0.310;P=0.042,r=-0.278)as well as the peak inversion time(P=0.018,r=-0.312;P=0.021,r=-0.309)in both chronic ankle instability and non-chronic ankle instability groups.Moreover,a significant negative correlation was also found between the foot toe-out angle and peak inversion velocity in the chronic ankle instability group(P=0.021,r=-0.312).(3)It is indicated that increasing the foot toe-out angle at landing can reduce the peak inversion angle,peak inversion velocity,and the peak inversion time during landing in patients with chronic ankle instability and non-chronic ankle instability,thereby decreasing the risk of ankle inversion sprains.

Objective: To analyze the association between alcohol consumption and lumbar disc herniation (LDH), so as to provide a reference for the development of prevention and treatment strategies for LDH. Methods: From May to July 2022, permanent residents aged ≥18 years from eight counties (cities/districts) in Gansu Province were selected using a multistage stratified random sampling method. Data on basic characteristics, alcohol consumption in the past 30 days, hypertension, and diabetes mellitus were collected through questionnaire surveys. LDH was determined based on imaging findings, combined with disease history or clinical symptoms. Multivariable logistic regression model was used to analyze the association between alcohol consumption and LDH, with subgroup analyses conducted by gender, age, ethnicity, and altitude of residence. Propensity score matching (PSM) was utilized for sensitivity analysis. Results: A total of 4 545 individuals were surveyed. There were 2 026 (44.58%) males and 2 519 (55.42%) females. The mean age was (44.82±15.33) years. The study participants were predominantly of Han ethnicity, with 2 598 persons accounting for 57.17%. The altitude of residence was mainly above 3 500 m, with 1 941 persons accounting for 42.71%. There were 574 alcohol drinkers, accounting for 12.63%. LDH was detected in 1 035 cases, with a detection rate of 22.77%. Multivariable logistic regression analysis showed that after adjusting for gender, age, physical activity, and hypertension, compared to non-drinking residents, alcohol-consuming residents exhibited a 27.6% reduction in the risk of LDH (OR=0.724, 95%CI: 0.544-0.963). No significant interaction effects on LDH risk were observed between alcohol consumption and gender, age, ethnicity, or altitude of residence (all Pfor interaction >0.05). The results of the sensitivity analysis indicated that compared to non-drinking residents, alcohol-consuming residents exhibited a 38.8% reduction in the risk of LDH (OR=0.612, 95%CI: 0.382-0.976). Conclusion Alcohol consumption was statistically associated with a lower risk of LDH.

Objective To investigate the enhanced CT and MRI imaging features of nasal sinus squamous cell carcinoma(SCC)and lymphoma(NHL),and to analyze the efficacy of different imaging features in differentiating nasal sinus SCC from NHL.Methods The imaging,clinical and pathological data of 67 patients with sinus SCC and NHL who underwent sinus CT and MRI with contrast CT and MRI in our hospital and confirmed by surgical pathology were retrospectively analyzed,and the tumor origin,maximum diameter,CT density,MRI signal intensity,enhancement degree,tumor internal necrosis,adjacent bone destruction,invasion of surrounding tissues,and The imaging features such as cervical lymph node metastasis within the scanning range were analyzed,and the receiver operating characteristic(ROC)curve and area under the curve(AUC)were used to analyze the efficacy of different imaging features to distinguish nasal sinus SCC and NHL.Results There were statistically significant differences between the five imaging features of nasal sinus SCC and NHL,including tumor origin,maximum diameter,internal tumor necrosis,surrounding bone destruction and peripheral tissue invasion(P＜0.05),and the AUC of differentiating SCC and NHL were 0.708,0.694,0.785,0.850 and 0.629,respectively.The AUC of SCC and NHL was 0.969,and the sensitivity and specificity were 83.9%and 97.2%,respectively.Conclusion On contrast-enhanced CT and MRI,the imaging signs of tumor origin,maximum diameter,tumor internal necrosis,bone destruction and surrounding tissue invasion are helpful to distinguish nasal sinus SCC from NHL,especially if the tumor originates in the nasal cavity,necrosis is rare,bone destruction is mild,and the possibility of nasal sinus NHL should be given priority.Contrast-enhanced CT and MRI can help differentiate nasal sinus SCC from NHL,and the combination can help improve differential diagnostic performance.

Objective:To observe the effect of point application-invigorate the spleen and kidney, circulation of blood formula (PA) combined with five-animal exercise (FAE) on improving the nutritional status for asthenia of patients with dialysis, and provide evidence for the rehabilitation treatment of dialysis patients.Methods:According to the random number table method, a total of 80 patients treated with regular dialysis at Department of Nephrology, the Affiliated Hospital of Nanjing University of Chinese Medicine from April 2020 to December 2021 were randomly divided into experimental group and control group, with 40 cases in each group. Participants in the control group received regular dialysis, basic treatment and diet nursing (RBD). Participants in the experimental group received RBD plus PA+FAE. Labaratory test results, Subjective Global Assessment scale score and Traditional Chinese medicine symptom score were measured at baseline and 12-weeks after the intervention. The Fried Frailty scale score was measured at baseline, 4, 8, and 12 weeks after the intervention.Results:The control group aged (54.08 ± 11.34) years old, 23 males, 17 females; the experimental group aged (57.38±9.89) years old, 19 males, 21 females. After 4, 8 and 12 weeks of intervention, the Fried Frailty Scale scores of the experimental group at different time points were 2 (2, 2), 1 (1, 2) and 1 (0, 1), respectively, lower than 3 (2, 4), 2 (2, 3) and 2 (2, 3) of the control group, and the differences in time effect, inter-group effect and interaction effect were statistically significant ( F=105.76, 18.38, 46.67, all P<0.01). Further pairwise comparisons within groups indicated significant differences of Fried Frailty scale scores at different time points ( Z=-2.78, -4.01, -6.08, all P<0.01). After 12-week of intervention, the results of hemoglobin, serum albumin and serum prealbumin were (107.88 ± 15.58) g/L, (39.10 ± 4.92) g/L, and (289.36 ± 72.05) mg/L in the experimental group, respectively, higher than (100.15 ± 17.62) g/L, (36.93 ± 4.72) g/L, (255.63 ± 75.35) mg/L in the control group ( t=-2.08, -2.01, -2.05, all P<0.05). Subjective Overall Assessment scale was found a significant difference between the 2 groups ( χ2=10.91, P<0.01): the number of grade A (good nutrition) and B (mild to moderate malnutrition) were 36 and 4 in the experimental group and 23 and 17 in the control group. Traditional Chinese medicine symptom score was (4.68 ± 2.50) in the experimental group, lower than (9.58 ± 4.40) in the control group ( t=6.13, P<0.01). Conclusions:Point application-invigorate the spleen and kidney and circulation of blood formula combined with five-animal exercise can effectively improve the nutritional status of dialysis patients and reduce the weakness of patients

AIM: To analyze the corneal morphological characteristics of school-age children, and provide reference for the examination of refractive errors, corneal lesions, and treatment in school-age children.METHODS: Children aged 6-12 years in our hospital from March 2020 to June 2023 were included as the research objects, and they are divided into emmetropia group(-0.25 D≤SE≤+0.25 D)and myopia group(-6.00 D≤SE<-0.25 D)according to spherical equivalent(SE). The flat curvature(K1), steep curvature(K2), mean curvature(Km), radius of curvature(Rm), white-to-white(WTW)and corneal central thickness(CCT)were measured by Pentacam anterior segment analyzer. The corneal morphological differences between the emmetropia group and myopia group, boys and girls and children of different ages were analyzed.RESULTS: In the emmetropia group, the anterior corneal surface Km was 42.84±0.61 D, Rm was 7.85±0.15 mm, the posterior corneal surface Km was -6.23±0.04 D, Rm was 6.77±0.15 mm, WTW was 11.89±0.28 mm, CCT was 557.77±22.44 μm; in the myopia group, Km was 43.68±0.62 D, Rm was 7.72±0.16 mm, Km was -6.49±0.03 D, Rm was 6.64±0.17 mm, WTW was 12.17±0.27 mm, CCT was 553.24±22.23 μm. There was significant difference in corneal morphology between the emmetropia group and the myopia group(both P<0.01). Correlation analysis showed that corneal morphology was significantly correlated with age and gender.CONCLUSION: The corneal morphology of school-age children is not fixed, and the occurrence of myopia is not only related to the growth of axial length, but also significantly related to the changes of corneal morphology.

Through comprehensive and systematic collection of existing evidence,systematic review adopts clinical epidemiological methods,strictly evaluates the quality of evidence,qualitatively or quantitatively combines research results,and finally provides a reliable basis for solving a focused clinical problem.The number of systematic reviews has increased rapidly.With references to the Checklist,this review discussed the typical issues with current systematic reviews in nursing,and highlighted the crucial components for reporting systematic reviews at every essential step.

Objective To understand the basic information of the number, classification, and distribution of radiation work units in non-medical institutions in Shanxi Province, China, and to analyze the status quo of health management and radiation protection measures for radiation workers, so as to provide a scientific basis for occupational exposure protection in non-medical radiation work units and better protect the occupational health rights and interests of radiation workers. Methods A questionnaire survey was conducted to investigate some non-medical institutions in Shanxi Province. On-site testing was carried out to determine the risk factors for radioactive occupational diseases in the selected non-medical institutions. Results In 220 non-medical institutions, there were 340 radiation devices and 2284 radioactive sources. The rate of individual dose monitoring was 92.7% and the rate of occupational health examination was 87.2%. These devices were equipped with 325 detection instruments for radiation protection, 1316 personal protective equipment, and 730 personal dose alarms. Radiation occupational disease risk factors were investigated in 101 institutions. Conclusion The occupational health management of radiation workers in non-medical institutions in Shanxi Province is generally in line with the national standards. However, there is still a big gap with the level of occupational health management in medical institutions. The health administration departments should clarify the management measures for non-medical institutions and strengthen their supervision and management functions.

This article summarizes and organizes relevant publications in journals, along with a review of medical history, systematically summarizing the development process of dental alveolar surgery in China. The initial establishment phase (1935—1952) marked the starting point of Chinese Alveolar Surgery. Despite the impact of wars, it laid the foundation for subsequent research and practice. During the early development phase (1953—1966), the "Chinese Journal of Stomatology" was founded, which promoted the development of Alveolar Surgery. Research focused on tooth extraction methods and complications. Tooth Transplantation and Preprosthetic Surgery gradually began to take off. The stagnant phase (1967—1977) occurred due to the interruption of international exchanges, leading to an almost complete halt in the development of Alveolar Surgery. Entering the rapid catch-up phase (1978—1985), Alveolar Surgery scholars in China began striving to overcome the stagnation of the previous decade. While some progress was made, no significant innovative achievements emerged. In the scientific development phase (1986—2010), clinical research, basic experiments, and paper writing in modern Chinese Alveolar Surgery began to adhere to scientific standards with the rise of experimental medicine. The exploration and innovation stage (2011—2023) is the current development phase, during which Chinese Aveolar Surgery has reached its peak, making substantial progress in technology, clinical practices, and basic research, gradually reaching or even surpassing international advanced levels. Looking back at the development history in China, we can find the wisdom and hard work of the older generation of Alveolar Surgery scholars. However, contemporary challenges and issues, such as standardizing technology, promoting clinical practices, and talent cultivation, need to be addressed by present-day Alveolar Surgery professionals as they forge ahead.

The impaction rate of third molars is increasingly high, leading to more and more serious clinical problems. For a long time, the primary approach to managing third molars has been direct extraction, with a notable lack of systematic and diversified treatment methods. This article introduces, for the first time, the concept of whole life-cycle health management for third molars and suggests that the window for third molars life-cycle health management should be moved forward to the tooth germ stage. For tooth germs of third molars with severe risks, timely and necessary intervention should be administered. For normally erupting third molars, efforts should be made to maintain their health so they can function over the long term. For impacted third molars that have not caused related clinical symptoms, careful observation and cautious extraction should be considered. If necessary, techniques such as orthodontics and autotransplantation can be used to functionalize them. For impacted third molars that have caused clinical symptoms, functional oral surgical principles should be applied to reduce surgical trauma and prevent intraoperative and postoperative complications using advanced clinical techniques.

Objective:To investigate whether residual dental follicles in the alveolar socket after extraction of impacted mandibular third molars affect the periodontal health of adjacent mandibular second molars, in order to provide clinical reference for the management of residual dental follicles after third molar extraction.Methods:A total of 82 patients who underwent bilateral impacted mandibular third molar extraction at the Department of Oral Surgery, School and Hospital of Stomatology Wuhan University, from November 1, 2020, to November 30, 2022, were included in the study. Using a self-controlled method, each patient′s bilateral mandibular third molars were randomly divided into two groups: Group A underwent third molar extraction with thorough removal of residual dental follicle tissue, while Group B underwent third molar extraction without any treatment of the remaining dental follicle tissue. Operation time and adverse reactions were recorded. Clinical and radiographic examinations were performed at 6-month follow-up to evaluate the periodontal parameters and alveolar bone height of the bilateral mandibular second molars, and differences between the two groups were compared.Results:All patients had successful bilateral mandibular third molar extractions, and no serious complications occurred intraoperatively or postoperatively. There were no statistically significant differences in surgical time, postoperative pain, or facial swelling between the two groups ( P>0.05). At the 6-month follow-up, the probing depth on the distal aspect of the mandibular second molars in Group A [2.67 (2.00, 3.67) mm] was significantly less than that in Group B [4.00 (3.00, 5.00) mm] ( Z=-6.55, P<0.001). The clinical attachment loss on the distal aspect of the mandibular second molars in Group A [1.00 (0.00, 3.00) mm] was less than that in Group B [3.00 (2.00, 5.00) mm] ( Z=-5.99, P<0.001). The distance from the alveolar crest to the cementoenamel junction on the distal aspect of the mandibular second molars in Group A [(1.86±1.34) mm] was less than that in Group B [(3.04± 1.89) mm] ( t=-6.87, P<0.001). In patients aged≥20 years, the probability of recovery of alveolar bone height to normal level on the distal aspect of the mandibular second molars in Group A [42.3% (11/26)] was significantly higher than that in Group B [0 (0/26)] ( P<0.01), while there was no statistically significant difference between Group A [63.3% (19/30)] and Group B [46.7% (14/20)] in patients aged<20 years ( P>0.05). Conclusions:Residual dental follicles in the alveolar socket after extraction of impacted mandibular third molars adversely affect the periodontal health of adjacent teeth. Thorough removal of residual dental follicles during impacted mandibular third molar extraction is beneficial for the postoperative recovery of alveolar bone height of the distal aspect of the mandibular second molars, especially in patients aged≥20 years.