1.Huaier Enhances Efficacy of Oxaliplatin in Treatment of Gastric Cancer by Improving Gut Microbiota
Shenglian ZHANG ; Zhimin DU ; Yi GONG ; Meiqi LAN ; Ping LIU ; Yajun XIONG ; Yanli GONG ; Xiaoyong SONG ; Junli LI ; Ruizhi WANG ; Yuting GAO ; Huanhu ZHANG ; Xinli SHI
Cancer Research on Prevention and Treatment 2026;53(3):176-186
Objective To elucidate the changes in the gut microbiota and molecular mechanism of huaier in
2.Mechanisms of Akkermansia muciniphila in regulating bile acid metabolism of cholestatic model mice
Yajun LIU ; Ruochen JI ; Yuan ZHANG ; Muxia LI ; Lin ZHANG
Chinese Journal of Pediatrics 2026;64(1):77-83
Objective:To investigate the therapeutic effects of Akkermansia muciniphila (AKK) on liver injury induced by cholestasis and its mechanisms in regulating bile acid metabolism. Methods:The cholestatic mouse model was established by bile duct ligation (BDL). A total of 35 male C57BL/6J mice (8 weeks old) were divided into 5 groups using a random numder table method (7 mice per group): group A (control group), group B (BDL group), group C (BDL+AKK group), group Z (BDL+AKK+Z/E-guggulsterone group), and group G (BDL+AKK+Gly-β-muricholic acid group). Preoperative and postoperative changes in liver function and bile acid metabolism indicators was observed of mice in groups A, B, and C. The liver function and fibrosis markers were compared between groups, as well as serum, liver, and fecal total bile acid levels, fecal bile acid composition, liver histopathology, and the mRNA expression of key proteins involved in the bile acid enterohepatic circulation and the farnesoid X receptor (FXR) signaling pathway were compared. Multiple groups of data were compared using analysis of variance or nonparametric Kruskal Wallis H test. Results:Twelve days after BDL, in groups A, B, and C, mice in group C exhibited milder postoperative jaundice and their body weights on postoperative days 4-5 and 7-11 were heavier than those in group B mice (all P<0.05). The liver tissues of mice in group C were milder than those in group B in terms of appearance, histopathology, inflammation and liver fibrosis (all P<0.05). The levels of serum alanine aminotransferase, aspartate aminotransferase, as well as the expression levels of liver α-smooth muscle actin and type Ⅰ collagen, and the levels of total liver bile acid and fecal β-murine bile acid in the C group mice were all lower than those of group B mice ((46±20) vs. (90±34) U/L, (96±17) vs.(122±31) U/L, (2.01±0.11)% vs. (7.55±0.21)%, (1.92±0.10)% vs. (7.28±0.51)%, (62±14) vs. (124±39) μmol/mg, 3 052 (1 522, 6 406) vs. 14 756 (6 582, 33 474) ng/g,all P<0.05). And the mRNA expression levels of cholesterol 7α-hydroxylase and bile salt export pump of the ileum, etc. in group C mice were lower than those in group B mice (all P<0.05), while the mRNA expression levels of FXR and fibroblast growth factor 15 in the intestine were higher than those in group B mice (all P<0.05). In groups B, C, Z, and G, compared with group C, mice in groups Z and G had aggravated liver injury and fibrosis, increased total bile acid levels in the liver, and increased serum alanine aminotransferase, total bilirubin, and expression levels of liver α-smooth muscle activator protein and type I collagen (all P<0.05). There was no statistically difference in the above indicators between group Z and group G (all P<0.05). Conclusion:AKK reduces liver bile acid synthesis, regulates bile acid metabolism, alleviate liver function damage and fibrosis, and improves clinical phenotypes by activating the intestinal FXR-fibroblast growth factor 15 signaling pathway.
3.Mechanisms of Akkermansia muciniphila in regulating bile acid metabolism of cholestatic model mice
Yajun LIU ; Ruochen JI ; Yuan ZHANG ; Muxia LI ; Lin ZHANG
Chinese Journal of Pediatrics 2026;64(1):77-83
Objective:To investigate the therapeutic effects of Akkermansia muciniphila (AKK) on liver injury induced by cholestasis and its mechanisms in regulating bile acid metabolism. Methods:The cholestatic mouse model was established by bile duct ligation (BDL). A total of 35 male C57BL/6J mice (8 weeks old) were divided into 5 groups using a random numder table method (7 mice per group): group A (control group), group B (BDL group), group C (BDL+AKK group), group Z (BDL+AKK+Z/E-guggulsterone group), and group G (BDL+AKK+Gly-β-muricholic acid group). Preoperative and postoperative changes in liver function and bile acid metabolism indicators was observed of mice in groups A, B, and C. The liver function and fibrosis markers were compared between groups, as well as serum, liver, and fecal total bile acid levels, fecal bile acid composition, liver histopathology, and the mRNA expression of key proteins involved in the bile acid enterohepatic circulation and the farnesoid X receptor (FXR) signaling pathway were compared. Multiple groups of data were compared using analysis of variance or nonparametric Kruskal Wallis H test. Results:Twelve days after BDL, in groups A, B, and C, mice in group C exhibited milder postoperative jaundice and their body weights on postoperative days 4-5 and 7-11 were heavier than those in group B mice (all P<0.05). The liver tissues of mice in group C were milder than those in group B in terms of appearance, histopathology, inflammation and liver fibrosis (all P<0.05). The levels of serum alanine aminotransferase, aspartate aminotransferase, as well as the expression levels of liver α-smooth muscle actin and type Ⅰ collagen, and the levels of total liver bile acid and fecal β-murine bile acid in the C group mice were all lower than those of group B mice ((46±20) vs. (90±34) U/L, (96±17) vs.(122±31) U/L, (2.01±0.11)% vs. (7.55±0.21)%, (1.92±0.10)% vs. (7.28±0.51)%, (62±14) vs. (124±39) μmol/mg, 3 052 (1 522, 6 406) vs. 14 756 (6 582, 33 474) ng/g,all P<0.05). And the mRNA expression levels of cholesterol 7α-hydroxylase and bile salt export pump of the ileum, etc. in group C mice were lower than those in group B mice (all P<0.05), while the mRNA expression levels of FXR and fibroblast growth factor 15 in the intestine were higher than those in group B mice (all P<0.05). In groups B, C, Z, and G, compared with group C, mice in groups Z and G had aggravated liver injury and fibrosis, increased total bile acid levels in the liver, and increased serum alanine aminotransferase, total bilirubin, and expression levels of liver α-smooth muscle activator protein and type I collagen (all P<0.05). There was no statistically difference in the above indicators between group Z and group G (all P<0.05). Conclusion:AKK reduces liver bile acid synthesis, regulates bile acid metabolism, alleviate liver function damage and fibrosis, and improves clinical phenotypes by activating the intestinal FXR-fibroblast growth factor 15 signaling pathway.
4.Physical activity and its associations with depressive and anxiety symptoms and their co-existence among secondary vocational school students
YAN Kangying*, WU Jialin, SUN Hao, LIU Ningling, XU Huaping, LU Jinkui, CHEN Yajun
Chinese Journal of School Health 2026;47(6):777-783
Objective:
To examine the characteristics of physical activity among secondary vocational school students and its associations with depressive symptoms, anxiety symptoms, and their co-existence, so as to provide evidence for promoting their mental health.
Methods:
From September to December 2024, a questionnaire survey was conducted on 5 141 secondary vocational school students using convenience sampling method across 16 secondary vocational schools in 8 provinces/municipalities, including Fujian, Chongqing, Guangdong, Guangxi, Hubei, Jiangxi, Shanghai and Zhejiang. A self designed questionnaire, International Physical Activity Questionnaire Short Form, Patient Health Questionnaire-9 and Generalized Anxiety Disorder Scale-7 were used to assess basic information, physical activity characteristics, and depressive and anxiety symptoms. Chi-square test and Logistic regression model were used to analyze the associations of physical activity characteristics with depressive symptoms, anxiety symptoms, and their co-existence.
Results:
Among secondary vocational school students, 22.2% had depressive symptoms, 12.2% had anxiety symptoms, and 10.5% had both conditions. After adjustment for confounding factors such as sex, grade, and family structure, Logistic regression analyses showed that a high physical activity level, meeting the recommendation for daily moderate to vigorous physical activity (MVPA), and a concentrated physical activity pattern were associated with lower odds of depressive symptoms, anxiety symptoms, and their co-existence ( OR =0.70-0.81, all P <0.05). Regular weekly MVPA and a regular physical activity pattern were associated only with lower odds of depressive symptoms ( OR =0.79, 0.70, both P <0.05). Sex stratified analyses showed that meeting the recommendation for daily MVPA and a concentrated physical activity pattern were associated with lower odds of depressive symptoms, anxiety symptoms, and their co-existence among boys ( OR =0.60-0.71); a high physical activity level, regular weekly MVPA, and a regular physical activity pattern were associated with lower odds of depressive symptoms among boys ( OR =0.65-0.78)(all P <0.05). Meanwhile, a high physical activity level, meeting the recommendation for daily MVPA, regular weekly MVPA, and regular and concentrated physical activity patterns were associated with lower odds of depressive symptoms in female students ( OR =0.72-0.79) (all P <0.05).
Conclusions
Physical activity characteristics are associated with depressive symptoms, anxiety symptoms, and their co-existence among secondary vocational school students. Schools should optimize physical activity promotion strategies according to sex specific characteristics to reduce the occurrence of depressive and anxiety symptoms among secondary vocational school students.
5.Physical fitness status and its association with lifestyle behaviors among secondary vocational school students
LIU Zhihao, ZOU Xiaojun, XUE Jianhua, YANG Xiaofang, XU Huaping, KONG Junfeng, LU Jinkui, CHEN Yajun
Chinese Journal of School Health 2026;47(6):784-788
Objective:
To analyze the compliance status of physical fitness indicator and lifestyle characteristics among secondary vocational school students, as well as their associations, so as to provide a reference for physical fitness promotion among secondary vocational school students.
Methods:
Using a convenience sampling method, a questionnaire survey and physical fitness tests were conducted from September to December 2024 among 5 141 secondary vocational school students recruited from 16 secondary vocational schools across 8 provinces/municipalities in China, including Fujian, Chongqing, Guangdong, Guangxi, Hubei, Jiangxi, Shanghai and Zhejiang. Data on lifestyle factors were collected using a self designed questionnaire combined with standardized scales, including dietary habits, unhealthy behaviors, and 24 hour behaviors (physical activity, screen time, and sleep behavior). Multivariable Logistic regression model was used to analyze the associations of individual lifestyle behaviors and clustering of unhealthy lifestyle behaviors with non-compliance in physical fitness indicators among secondary vocational school students.
Results:
The compliance rates for waist circumference, vital capacity, grip strength, standing long jump, 30 second sit ups, 20 meter shuttle run, 50 meter dash, sit and reach, 20 second side steps among secondary vocational school students were 55.9%, 89.6%, 81.8%, 79.4%, 77.8%, 61.4%, 87.0%, 12.6%, and 63.5%, respectively, with a non-overweight/obesity rate of 78.9%. The reporting rates of daily breakfast consumption, milk consumption, and vegetable consumption were 58.9%, 18.3%, and 37.5%, respectively. The reporting rates of frequent takeout consumption, frequent sugar sweetened beverage consumption, smoking, alcohol drinking, insufficient moderate to vigorous physical activity (MVPA), excessive screen time, and insufficient sleep were 30.0%, 43.8%, 8.4%, 15.8%, 42.9%, 90.8%, and 42.6%, respectively. Multivariable Logistic regression analysis showed that secondary vocational school students with insufficient MVPA had higher risks of non-compliance in vital capacity, grip strength, standing long jump, 30 second sit ups, 20 meter shuttle run, 50 meter dash, and 20 second side steps ( OR =1.22- 1.60 ); secondary vocational school students who consumed breakfast daily had lower risks of non-compliance in vital capacity and overweight/obesity ( OR =0.81, 0.85); daily vegetable consumption was associated with a lower risk of vital capacity non-compliance ( OR =0.72); frequent takeout consumption was associated with an increased risk of non-compliance in the sit and reach test ( OR =1.28); smoking was associated with increased risks of non-compliance in the 20 meter shuttle run and 20 second side steps ( OR =1.38, 1.58) (all P <0.05). Regarding the clustering of unhealthy behaviors, secondary vocational school students with 4- 5 clustered unhealthy behaviors had higher risks of non-compliance in waist circumference and standing long jump; those with≥6 clustered behaviors had higher risks of non-compliance in standing long jump, 20 meter shuttle run, and 20 second side step ( OR = 1.17-1.36, all P <0.05).
Conclusions
The clustering of unhealthy behaviors is negatively associated with physical fitness status among secondary vocational school students. Secondary vocational schools should prioritize the promotion of comprehensive lifestyle management to improve the physical fitness levels of secondary vocational school students.
6.Association between executive function and emotional and behavioral problems among first-grade elementary school students
Chinese Journal of School Health 2026;47(7):922-925
Objective:
To explore the association between executive function and emotional and behavioral problems in first-grade elementary school students, so as to provide a reference for promoting children s mental health.
Methods:
From March to May 2024, 423 first-grade elementary school students from 6 primary schools aged 6-7 were selected by using stratified cluster random sampling in Shanxi, Shanghai, Shandong, Guangxi, Xinjiang, and Jiangxi. Data were collected by using the Executive Function Assessment Scale and the Strengths and Difficulties Questionnaire. An independent samples t-test was used to analyze differences in executive function of different genders and differences in emotional and behavioral problems among first-grade school students with varying executive function levels; a linear regression model was employed to analyze the association between children s executive function and emotional and behavioral problems.
Results:
A total of 42 first-grade elementary school students (9.9%) were identified as having executive function deficits. Students in the executive function deficit group scored higher on internalizing behavior (7.50±0.52), externalizing behavior (11.26±0.52), and total difficulties (18.52± 0.93 ) were significantly higher than those of children without deficits (4.37±0.14, 6.69±0.17, 10.64±0.27) ( t =5.79, 8.50, 9.23, all P <0.05). Results of linear regression analysis showed that, after controlling for relevant covariates such as gender, age, family economic status, being an only child, and body mass index, the factor scores, dimensional scores, and total scores of executive function were all positively correlated with scores for externalizing problems, internalizing problems, and total difficulties ( β =0.07-0.32, all P <0.05).
Conclusions
Children s executive function is closely associated with emotional and behavioral problems, and those with poorer executive function exhibit more pronounced emotional and behavioral problems. Improving children s executive function may help promote their mental health.
7.Effect of Huangqin Qingre Chubi Capsules-containing Serum on CircRNA_0001543/NF-κB Expression in Co-cultured PBMCs and Human FLSs from Patients with Ankylosing Spondylitis
Yajun QI ; Jian LIU ; Qiao ZHOU ; Yuedi HU ; Xiang DING ; Chengzhi CONG ; Xu LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):87-95
ObjectiveThis study aims to explore the effects of Huangqin Qingre Chubi capsules-containing serum on the expression of CircRNA_0001543/nuclear factor-kappa B (NF-κB) in co-cultured peripheral blood mononuclear cells (PBMCs) and human fibroblast-like synoviocytes (FLSs) from patients with ankylosing spondylitis (AS). MethodsVenous blood was collected from patients with AS to isolate PBMCs. FLSs were co-cultured with AS patients' PBMCs, and FLSs were harvested after co-culture for subsequent experiments. The normal control group consisted of normal FLSs, while the model group comprised co-cultured AS PBMCs and FLSs to simulate AS pathology. The Huangqin Qingre Chubi capsules group involved adding Huangqin Qingre Chubi capsules-containing serum to the co-cultured cells(6.48 g·kg-1). To investigate the effect of HQC-containing serum on the viability of co-cultured cells, and the experiment was divided into the following groups based on the dilution concentration: blank group, 10% HQC group, 20% HQC group, and 30% HQC group.To study the influence of the optimal concentration of HQC-containing serum on cytokine and pathway indicators in each group, the experiment was divided into three groups: normal group, model group, and optimal concentration HQC-containing serum group.For the validation of the transfection efficiency of the CircRNA_0001543 interference plasmid, the experiment was divided into the following groups: blank group, si-NC group (with transfection reagent), si-circ_0001543-1 group (with transfection reagent and interference plasmid No. 1 targeting circ_0001543), si-circ_0001543-2 group (with transfection reagent and interference plasmid No. 2 targeting circ_0001543), and si-circ_0001543-3 group (with transfection reagent and interference plasmid No. 3 targeting circ_0001543).For the validation of the transfection efficiency of the CircRNA_0001543 overexpression plasmid, the experiment was divided into the following groups: blank group, OE-NC group (with transfection reagent), and OE-circ_0001543 group (with transfection reagent and overexpression plasmid targeting circ_0001543).To study the effects of CircRNA_0001543 interference/overexpression on cytokine and pathway indicators in each group, the experiment was divided into the following groups: si-NC group, si-CircRNA_0001543 group, OE-NC group, and OE-CircRNA_0001543 group. Enzyme-linked immunosorbent assay (ELISA) was used to detect levels of interleukin-1β (IL-1β), IL-10, IL-37, and tumor necrosis factor-α (TNF-α). Real-time quantitative polymerase chain reaction (Real-time PCR) was utilized to measure the expression of CircRNA_0001543, IκBα, and NF-κB p65. ResultsAfter 48 hours, 30% Huangqin Qingre Chubi Capsules-containing serum significantly inhibited the proliferation of co-cultured PBMCs and FLSs, which was determined to be the optimal experimental drug-containing serum concentration. Compared with those in the normal group, the expressions of NF-κB p65 mRNA, IκBα mRNA, IL-1β, and TNF-α in the model group were significantly increased (P<0.01), while the expressions of CircRNA_0001543 mRNA, IL-10, and IL-37 were significantly decreased (P<0.01). Compared with those in the model group, the expressions of NF-κB p65 mRNA, IκBα mRNA, IL-1β, and TNF-α in the Huangqin Qingre Chubi Capsules-containing serum group were significantly decreased (P<0.05), and the expressions of CircRNA_0001543 mRNA, IL-10, and IL-37 were significantly increased (P<0.05), with the most prominent changes in the 30% drug-containing serum group (P<0.01). Compared with that in the si-NC group, the expression of CircRNA_0001543 was significantly reduced in the si-CircRNA_0001543 group (P<0.01). Compared with that in the OE-NC group, the expression of CircRNA_0001543 was significantly increased in the OE-CircRNA_0001543 group (P<0.01), indicating that the si-CircRNA_0001543 and OE-CircRNA_0001543 plasmids were successfully transfected. Based on the optimal drug-containing serum of Huangqin Qingre Chubi Capsules, si-CircRNA_0001543 transfection led to significantly increased expressions of NF-κB p65 mRNA, IκBα mRNA, IL-1β, and TNF-α and decreased the expressions of IL-10 and IL-37 (P<0.01). In contrast, OE-CircRNA_0001543 transfection significantly decreased the expressions of NF-κB p65 mRNA, IκBα mRNA, IL-1β, and TNF-α (P<0.01) and increased the expressions of IL-10 and IL-37 (P<0.01). ConclusionHuangqin Qingre Chubi capsules-containing serum can improve immune inflammation in AS by increasing the expression of CircRNA_0001543, regulating the NF-κB pathway, suppressing pro-inflammatory cytokines, and enhancing anti-inflammatory cytokine expression.
8.The correlation between abnormal metabolic indexes and the severity of coronary artery lesions in patients with acute coronary syndrome
Yajun ZHAO ; Ming LIU ; Yuxiang DAI ; Xiaopan LI ; Xuelin CHENG ; Qizhe WANG ; Ru LIU ; Yaxin XU ; Sunfang JIANG
Chinese Journal of Clinical Medicine 2025;32(3):441-448
Objective To explore the influencing factors of coronary artery lesion severity in patients with acute coronary syndrome (ACS). Methods Clinical data of ACS patients admitted to Zhongshan Hospital, Fudan University from December 2017 to December 2019 were consecutively collected. The modified Gensini score was used to assess the severity of coronary artery lesions. Univariate and multivariate linear regression analyses were performed to identify independent factors associated with coronary artery lesion severity. Results A total of 1 689 ACS patients were included, with an average age of (64.04±11.45) years; 1 353 (80.11%) were male, and the mean modified Gensini score was (8.12±4.03). Multivariate linear regression analysis revealed that sex (β=0.97, P=0.001), age (β=0.03, P=0.021), estimated glomerular filtration rate (eGFR; β=-0.03, P<0.001), low-density lipoprotein cholesterol (LDL-C; β=0.58, P<0.001), apolipoprotein A1 (Apo A1; β=-1.28, P=0.012), lipoprotein(a) [Lp(a); β=0.001, P=0.033], and glycated hemoglobin A1C (HbA1C; β=0.45, P<0.001) were independent influencing factors of the modified Gensini score. Conclusions Metabolic indicators, including Apo A1, LDL-C, HbA1C, and Lp(a), may serve as risk factors for coronary artery lesion severity in ACS patients, with Apo A1 demonstrating the strongest impact.
9.Effectiveness analysis of three internal fixation methods in treatment of avulsion fracture of tibial tubercle in adolescents.
Keyou DUAN ; Zhaodong WANG ; Yajun LIU ; Chen XU ; Zhonglian ZHU ; Jianzhong GUAN
Chinese Journal of Reparative and Reconstructive Surgery 2025;39(1):75-82
OBJECTIVE:
To analyze the effectiveness of three internal fixation methods, namely hollow screw combined with Kirschner wire tension band, hollow screw combined with anchor nail, and modified 1/3 tubular steel plate, in the treatment of avulsion fracture of tibial tubercle (AFTT) in adolescents.
METHODS:
Between January 2018 and September 2023, 19 adolescent AFTT patients who met the selection criteria were admitted. According to different internal fixation methods, patients were divided into group A (8 cases, hollow screw combined with Kirschner wire tension band), group B (6 cases, hollow screw combined with anchor nail), and group C (5 cases, modified 1/3 tubular steel plate). There was no significant difference in the baseline data of age, gender, side, cause of injury, Ogden classification, and time from injury to operation among the three groups ( P>0.05). The range of motion (ROM), weight-bearing time, normal activity time of knee joint, and the hospital for special surgery (HSS) score at last follow-up were recorded and compared among the three groups. Recorded whether the fracture was displaced, whether the fracture line was blurred at 1 month after operation, whether there was epiphyseal dysplasia, and whether there was incision infection and other complications.
RESULTS:
There was no significant difference in hospital stay between the groups ( P>0.05). All patients were followed up 10-24 months, with an average of 14.3 months; there was no significant difference between the groups ( P>0.05). All the incisions healed well without soft tissue irritation or fracture nonunion, and no limb shortening deformity or epiphyseal dysplasia was found during follow-up. At 1 month after operation, the knee joint ROM and hospitalization expenses in group A were better than those in groups B and C, the fracture healing time, knee joint weight-bearing time, and normal activity time of knee joint were better than those in group C, and the hospitalization expenses in group C were better than those in group B, with significant differences ( P<0.05); there was no significant difference in the other indicators between the groups ( P>0.05). In group A, the fracture line was blurred 1 month postoperatively, the fracture ends were in close contact, and there was no fracture displacement; in groups B and C, the fracture line was clear in 2 cases, and 1 case in group C had slight fracture displacement; except for 1 case in group B, there was no fracture split in the other two groups. There was no significant difference in the incidences of blur of fracture line, fracture displacement, and intraoperative bone split between the groups at 1 month after operation ( P>0.05). At last follow-up, the HSS scores of knee joints in the three groups were excellent and good, and there was no significant difference between the groups ( P>0.05).
CONCLUSION
Hollow screw combined with Kirschner wire tension band technique is effective in treating adolescent AFTT, which has the advantages of stabilizing fracture, accelerating fracture healing and rehabilitation, early feasible knee joint functional exercise, and reducing hospitalization expenses.
Humans
;
Tibial Fractures/surgery*
;
Adolescent
;
Male
;
Fracture Fixation, Internal/instrumentation*
;
Female
;
Fractures, Avulsion/surgery*
;
Bone Wires
;
Bone Screws
;
Bone Plates
;
Treatment Outcome
;
Range of Motion, Articular
;
Bone Nails
;
Weight-Bearing
;
Fracture Healing
10.Application of intermediate screw assisted reduction and fixation technique in treatment of Schatzker type Ⅴ and Ⅵ tibial plateau fractures.
Zhaodong WANG ; Keyou DUAN ; Yajun LIU ; Chen XU ; Zhonglian ZHU ; Pinghui ZHOU ; Jianzhong GUAN
Chinese Journal of Reparative and Reconstructive Surgery 2025;39(5):529-535
OBJECTIVE:
To explore effectiveness of intermediate screw assisted reduction and fixation technique in the treatment of Schatzker type Ⅴ and Ⅵ tibial plateau fractures.
METHODS:
A clinical data of 22 patients with Schatzker type Ⅴ and Ⅵ tibial plateau fractures, who were admitted between June 2022 and December 2023 and met the selection criteria, was retrospectively analyzed. During operation, the intermediate screw assisted reduction and fixation technique was used. There were 14 males and 8 females with an average age of 46.3 years (range, 17-65 years). The fractures were caused by traffic accident in 13 cases, by falls in 5 cases, and by falling from height in 4 cases. According to Schatzker classification criteria, 9 cases were type Ⅴ and 13 cases were type Ⅵ. The interval between injury and operation was 5-12 days (mean, 7.9 days). The operation time, intraoperative fluoroscopy times, and length of hospital stay were recorded. The range of motion of knee joint and Hospital for Special Surgery (HSS) score were recorded at last follow-up. X-ray films were taken to review the fracture healing. Rasmussen score, tibial plateau varus angle (TPVA), and posterior tibial slope (PTS) were estimated before operation, at immediate after operation, and at last follow-up in order to evaluate the fracture reduction effect and postoperative outcome.
RESULTS:
The operation time was 85-140 minutes (mean, 103.9 minutes). Intraoperative fluoroscopy was performed 7-15 times (mean, 10.1 times). All incisions healed by first intention after operation, and no complication such as nerve or blood vessel injury occurred. The length of hospital stay ranged from 8 to 17 days (mean, 12.4 days). All patients were followed up 10-22 months (mean, 14.8 months). At last follow-up, the range of motion of knee joint was 110°-140° (mean, 125°). HSS score was rated as excellent in 16 cases, good in 5 cases, and fair in 1 case, with an excellent and good rate of 95.5%. X-ray films reexamination showed that all fractures healed with the healing time of 12-17 weeks (mean, 14.8 weeks). No internal fixation failure occurred. Rasmussen score, TPVA, and PTS at immediate after operation and at last follow-up were significantly superior to those before operation ( P<0.05). And there was no significant difference between immediately after operation and last follow-up ( P>0.05).
CONCLUSION
The treatment of Schatzker type Ⅴ and Ⅵ tibial plateau fractures with intermediate screw assisted reduction and fixation technique is reliable, which can reduce the difficulty of reduction and fixation, improve the efficiency of reduction and fixation, reduce the operation time, achieve satisfactory reduction and fixation effect and postoperative prognosis, and achieve good recovery of knee joint function.
Humans
;
Tibial Fractures/diagnostic imaging*
;
Male
;
Female
;
Adult
;
Middle Aged
;
Bone Screws
;
Fracture Fixation, Internal/instrumentation*
;
Retrospective Studies
;
Adolescent
;
Aged
;
Young Adult
;
Treatment Outcome
;
Range of Motion, Articular
;
Operative Time
;
Length of Stay
;
Tibial Plateau Fractures


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