OBJECTIVE To explore the improvement effects of Suting pingchuan decoction （STPC） on bronchial asthma in rats and its potential mechanism. METHODS Male SD rats were randomly divided into blank group， model group， STPC low-， medium- and high-dose groups （4.14， 8.28， and 16.56 g/kg， respectively， based on the crude drug dosage）， and dexamethasone group （positive control， 1 mg/kg）， with 8 rats in each group. Except for the blank group， the other groups were sensitized by intraperitoneal injection of ovalbumin and challenged by nebulized inhalation of ovalbumin to establish a bronchial asthma model. From the day of nebulization challenge， rats of each group were administered the corresponding drug solution or normal saline by gavage 1 hour before aerosolization， once a day， for 7 consecutive days. During the experiment， behavioral changes in rats of each group were observed. After the last administration， the levels of inflammatory factors （interleukin-1β， interleukin-18） in bronchoalveolar lavage fluid （BALF）， and oxidative stress indexes [malondialdehyde （MDA）， superoxide dismutase （SOD）] in lung tissue were determined； pathological changes in lung tissue were observed； cell apoptosis in lung tissue， and the mRNA expression of nucleotide-binding domain leucine-rich repeat and pyrin domain-containing receptor 3 （NLRP3） and the protein expressions of NLRP3， cleaved caspase-1， caspase-1， gasdermin D （GSDMD） and gasdermin D-N-terminal domain （GSDMD-N） in lung tissue were detected. RESULTS Compared with the blank group， rats in the model group showed symptoms such as scratching their ears and noses and frequent sneezing； the lung tissue structure was severely damaged， and there was obvious inflammatory cell infiltration. The levels of inflammatory factors in BALF， as well as the level of MDA， TUNEL-apoptotic cell rate， the mRNA expression of NLRP3， and the protein expressions of NLRP3， cleaved caspase-1， caspase-1， GSDMD-N and GSDMD in lung tissue were significantly increased or up-regulated， while the level of SOD in lung tissue was significantly decreased （ P ＜0.05 or P ＜0.01）. Compared with the model group， the above symptoms and pathological damages of lung tissue in each drug group were significantly improved， and all quantitative indicators （except for the protein expressions of GSDMD in the STPC groups， as well as the level of SOD， and the protein expressions of cleaved caspase-1， caspase-1 and GSDMD-N in the STPC low-dose group） were significantly reversed （ P ＜0.05 or P ＜0.01）. CONCLUSIONS STPC can improve airway inflammation and lung tissue damage in rats with bronchial asthma， reduce the level of oxidative stress， and decrease the release of inflammatory factors such as IL-1β and IL-18. Its mechanism of action may be related to the inhibition of pyroptosis activation mediated by the NLRP3/caspase-1/GSDMD signaling pathway.

BACKGROUND:Currently,there are many modeling methods for pelvic organ prolapse animal models,and the commonly used methods are vaginal balloon dilatation,oophorectomy and the combination of the two.There is no study comparing the three modeling methods in detail.OBJECTIVE:To construct and validate a rat animal model of pelvic organ prolapse using three different methods and to identify the advantages and disadvantages of various models.METHODS:Seventy-two 8-week SPF-grade female Sprague-Dawley rats were selected and randomly divided into four groups,namely,vaginal balloon dilatation group,ovariectomy group,ovariectomy combined with vaginal balloon dilatation group(the combined group),and the sham-operated group(no ovariectomy and no vaginal dilatation).The vaginal wall tissues of rats were collected at 4,8 and 12 weeks after the operation for hematoxylin-eosin staining,Masson staining,EVG staining and immunohistochemical staining of α-smooth muscle actin,Vimentin and matrix metalloproteinase 9 detection,and the pelvic floor muscle tissues were taken at 4,8 and 12 weeks after the operation for hematoxylin-eosin staining,Masson staining and EVG staining.RESULTS AND CONCLUSION:(1)Hematoxylin-eosi staining showed that there was no significant difference in the decrease of vaginal epithelial layer thickness in the vaginal balloon dilatation group compared with the sham-operated group,(P＞0.05),while the thickness of the vaginal epithelial layer was significantly reduced in the ovariectomy group and the ovariectomy combined with vaginal balloon dilation group(P＜0.001),and the reduction was more significant in the ovariectomy combined with vaginal balloon dilation group,remained stable at 8 weeks after surgery and lasted until 12 weeks.(2)The changes in the content of collagen fibers and elastic fibers in the vaginal wall stained by Masson and EVG staining were the same as the changes in the thickness of the vaginal epithelial layer stained by hematoxylin-eosin,and there were no changes in collagen fibers and elastic fibers in the pelvic floor muscle tissues of the treatment groups.(3)At 4,8 and 12 weeks after treatment,there was no significant difference in the expression levels of α-smooth muscle actin,Vimentin and matrix metalloproteinase 9 in the vaginal wall tissue of the balloon dilation group compared with the control group(P＞0.05),whereas the expression levels of α-smooth muscle actin and Vimentin were significantly decreased in the ovariectomy group and ovariectomy combined with vaginal balloon dilation group(P＜0.01)and the expression of matrix metalloproteinase 9 showed a significant increase(P＜0.01),with a more pronounced increase in the ovariectomy combined with vaginal balloon dilation group,and the increase reached a stable state at 8 weeks after surgery and could persist up to 12 weeks.To conclude,vaginal balloon dilatation could not maintain the degeneration of pelvic organ prolapse formed by the vaginal wall for a long period,and both ovariectomy and the combined method can be used.Ovariectomy combined with vaginal balloon dilatation can significantly accelerate and aggravate the formation of typical histological features of pelvic organ prolapse in vaginal wall tissues,effectively shorten the experimental period,and improve the efficiency.These effects reach a stable state at 8 weeks after surgery and can be sustained up to 12 weeks,which is practical and convenient for the study of pelvic organ prolapse animal models.

Lung cancer is a leading cause of cancer-related morbidity and mortality worldwide. Coupled with the substantial workload, the clinical management of lung cancer is challenged by the critical need to efficiently and accurately process increasingly complex medical information. In recent years, large language models (LLMs) technology has undergone explosive development, demonstrating unique advantages in handling complex medical data by leveraging its powerful natural language processing capabilities, and its application value in the field of lung cancer diagnosis and treatment is continuously increasing. The paper systematically analyzes that the exceptional potential of LLMs in lung cancer auxiliary diagnosis, tumor feature extraction, automatic staging, progression/outcome analysis, treatment recommendations, medical documentation generation, and patient education. However, they face critical technical and ethical challenges including inconsistent performance in complex integrated decision-making (e.g., TNM staging, personalized treatment suggestions) and "black box" opacity issues, along with dilemmas such as training data biases, model hallucinations, data privacy concerns, and cross-lingual adaptation challenges ("data colonization"). Future directions should prioritize constructing high-quality multimodal corpora specific to lung cancer, developing interpretable and compliant specialized models, and achieving seamless integration with existing clinical workflows. Through dual drivers of technological innovation and ethical standardization, LLMs should be prudently advanced for holistic lung cancer management processes, ultimately promoting efficient, standardized, and personalized diagnosis and treatment practices.

Oral squamous cell carcinoma (OSCC) is a common head and neck malignancy. Approximately 50% to 60% of patients with OSCC are diagnosed at a locally advanced stage (clinical staging III-IVa). Even with comprehensive and sequential treatment primarily based on surgery, the 5-year overall survival rate remains below 50%, and patients often suffer from postoperative functional impairments such as difficulties with speaking and swallowing. Programmed death receptor-1 (PD-1) inhibitors are increasingly used in the neoadjuvant treatment of locally advanced OSCC and have shown encouraging efficacy. However, clinical practice still faces key challenges, including the definition of indications, optimization of combination regimens, and standards for efficacy evaluation. Based on the latest research advances worldwide and the clinical experience of the expert group, this expert consensus systematically evaluates the application of PD-1 inhibitors in the neoadjuvant treatment of locally advanced OSCC, covering combination strategies, treatment cycles and surgical timing, efficacy assessment, use of biomarkers, management of special populations and immune related adverse events, principles for immunotherapy rechallenge, and function preservation strategies. After multiple rounds of panel discussion and through anonymous voting using the Delphi method, the following consensus statements have been formulated: 1) Neoadjuvant therapy with PD-1 inhibitors can be used preoperatively in patients with locally advanced OSCC. The preferred regimen is a PD-1 inhibitor combined with platinum based chemotherapy, administered for 2-3 cycles. 2) During the efficacy evaluation of neoadjuvant therapy, radiographic assessment should follow the dual criteria of Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and immune RECIST (iRECIST). After surgery, systematic pathological evaluation of both the primary lesion and regional lymph nodes is required. For combination chemotherapy regimens, PD-L1 expression and combined positive score need not be used as mandatory inclusion or exclusion criteria. 3) For special populations such as the elderly (≥ 70 years), individuals with stable HIV viral load, and carriers of chronic HBV/HCV, PD-1 inhibitors may be used cautiously under the guidance of a multidisciplinary team (MDT), with close monitoring for adverse events. 4) For patients with a poor response to neoadjuvant therapy, continuation of the original treatment regimen is not recommended; the subsequent treatment plan should be adjusted promptly after MDT assessment. Organ transplant recipients and patients with active autoimmune diseases are not recommended to receive neoadjuvant PD-1 inhibitor therapy due to the high risk of immune related activation. Rechallenge is generally not advised for patients who have experienced high risk immune related adverse events such as immune mediated myocarditis, neurotoxicity, or pneumonitis. 5) For patients with a good pathological response, individualized de escalation surgery and function preservation strategies can be explored. This consensus aims to promote the standardized, safe, and precise application of neoadjuvant PD-1 inhibitor strategies in the management of locally advanced OSCC patients.

BACKGROUND:Currently,there are many modeling methods for pelvic organ prolapse animal models,and the commonly used methods are vaginal balloon dilatation,oophorectomy and the combination of the two.There is no study comparing the three modeling methods in detail.OBJECTIVE:To construct and validate a rat animal model of pelvic organ prolapse using three different methods and to identify the advantages and disadvantages of various models.METHODS:Seventy-two 8-week SPF-grade female Sprague-Dawley rats were selected and randomly divided into four groups,namely,vaginal balloon dilatation group,ovariectomy group,ovariectomy combined with vaginal balloon dilatation group(the combined group),and the sham-operated group(no ovariectomy and no vaginal dilatation).The vaginal wall tissues of rats were collected at 4,8 and 12 weeks after the operation for hematoxylin-eosin staining,Masson staining,EVG staining and immunohistochemical staining of α-smooth muscle actin,Vimentin and matrix metalloproteinase 9 detection,and the pelvic floor muscle tissues were taken at 4,8 and 12 weeks after the operation for hematoxylin-eosin staining,Masson staining and EVG staining.RESULTS AND CONCLUSION:(1)Hematoxylin-eosi staining showed that there was no significant difference in the decrease of vaginal epithelial layer thickness in the vaginal balloon dilatation group compared with the sham-operated group,(P＞0.05),while the thickness of the vaginal epithelial layer was significantly reduced in the ovariectomy group and the ovariectomy combined with vaginal balloon dilation group(P＜0.001),and the reduction was more significant in the ovariectomy combined with vaginal balloon dilation group,remained stable at 8 weeks after surgery and lasted until 12 weeks.(2)The changes in the content of collagen fibers and elastic fibers in the vaginal wall stained by Masson and EVG staining were the same as the changes in the thickness of the vaginal epithelial layer stained by hematoxylin-eosin,and there were no changes in collagen fibers and elastic fibers in the pelvic floor muscle tissues of the treatment groups.(3)At 4,8 and 12 weeks after treatment,there was no significant difference in the expression levels of α-smooth muscle actin,Vimentin and matrix metalloproteinase 9 in the vaginal wall tissue of the balloon dilation group compared with the control group(P＞0.05),whereas the expression levels of α-smooth muscle actin and Vimentin were significantly decreased in the ovariectomy group and ovariectomy combined with vaginal balloon dilation group(P＜0.01)and the expression of matrix metalloproteinase 9 showed a significant increase(P＜0.01),with a more pronounced increase in the ovariectomy combined with vaginal balloon dilation group,and the increase reached a stable state at 8 weeks after surgery and could persist up to 12 weeks.To conclude,vaginal balloon dilatation could not maintain the degeneration of pelvic organ prolapse formed by the vaginal wall for a long period,and both ovariectomy and the combined method can be used.Ovariectomy combined with vaginal balloon dilatation can significantly accelerate and aggravate the formation of typical histological features of pelvic organ prolapse in vaginal wall tissues,effectively shorten the experimental period,and improve the efficiency.These effects reach a stable state at 8 weeks after surgery and can be sustained up to 12 weeks,which is practical and convenient for the study of pelvic organ prolapse animal models.

OBJECTIVE To investigate the effects and mechanism of modified Xiaoqinglong decoction combined with bone marrow mesenchymal stem cells （BMSCs） on nasal-pulmonary-intestinal mucosal immunity in rats with cold asthma. METHODS SD rats were randomly divided into blank group， model group， BMSCs group， BMSCs+modified Xiaoqinglong decoction （6.39 g/kg） group， and BMSCs+dexamethasone （0.125 mg/kg） group， with 10 rats in each group. The cold asthma rat model was established by sensitization and atomization challenge with ovalbumin combined with aluminum hydroxide， together with cold air stimulation from air conditioners. One hour before the initial atomization challenge， rats in all groups except the blank group and model group were injected with BMSCs suspension via the tail vein. Starting from the 15th day of the experiment， rats in each group were intragastrically administered corresponding liquid medicine or normal saline once a day for 7 consecutive days. After the last administration， the asthmatic behavioral changes and pathological morphological changes of lung tissues in rats were evaluated. The levels of interleukin-6 （IL-6） and IL-10 in nasopharyngeal lavage fluid， bronchoalveolar lavage fluid （BALF） and intestinal mucus were detected. The expression levels of proteins related to the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt） signaling pathway in nasal， lung and intestinal tissues were determined. RESULTS Compared with the blank group， the asthmatic behavioral score， lung tissue injury score， IL-6 levels in nasopharyngeal lavage fluid， BALF and intestinal mucus， PI3K protein expression and Akt phosphorylation levels in nasal， lung and intestinal tissues of rats in the model group were significantly increased （ P ＜0.05）； the IL-10 levels in nasopharyngeal lavage fluid， BALF and intestinal mucus were significantly decreased （ P ＜0.05）. Alveolar atrophy， collapse and even fusion， abnormal hyperplasia and hypertrophy of bronchial smooth muscle， and massive inflammatory cell infiltration were observed. Compared with the model group， most of the above quantitative indicators in the BMSCs group， BMSCs+modified Xiaoqinglong decoction group and BMSCs+dexamethasone group were significantly reversed （ P ＜0.05）， and pathological injuries of lung tissues were markedly alleviated. Compared with the BMSCs group， most of the above quantitative indicators were further improved in the BMSCs+modified Xiaoqinglong decoction group （ P ＜0.05）. CONCLUSIONS Modified Xiaoqinglong decoction combined with BMSCs can effectively improve nasal-pulmonary-intestinal mucosal immunity and relieve asthmatic symptoms in cold asthma rats， and its mechanism may be related to inhibiting the activation of the PI3K/Akt signaling pathway.

OBJECTIVE To investigate the effects and mechanism of modified Xiaoqinglong decoction combined with bone marrow mesenchymal stem cells （BMSCs） on nasal-pulmonary-intestinal mucosal immunity in rats with cold asthma. METHODS SD rats were randomly divided into blank group， model group， BMSCs group， BMSCs+modified Xiaoqinglong decoction （6.39 g/kg） group， and BMSCs+dexamethasone （0.125 mg/kg） group， with 10 rats in each group. The cold asthma rat model was established by sensitization and atomization challenge with ovalbumin combined with aluminum hydroxide， together with cold air stimulation from air conditioners. One hour before the initial atomization challenge， rats in all groups except the blank group and model group were injected with BMSCs suspension via the tail vein. Starting from the 15th day of the experiment， rats in each group were intragastrically administered corresponding liquid medicine or normal saline once a day for 7 consecutive days. After the last administration， the asthmatic behavioral changes and pathological morphological changes of lung tissues in rats were evaluated. The levels of interleukin-6 （IL-6） and IL-10 in nasopharyngeal lavage fluid， bronchoalveolar lavage fluid （BALF） and intestinal mucus were detected. The expression levels of proteins related to the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt） signaling pathway in nasal， lung and intestinal tissues were determined. RESULTS Compared with the blank group， the asthmatic behavioral score， lung tissue injury score， IL-6 levels in nasopharyngeal lavage fluid， BALF and intestinal mucus， PI3K protein expression and Akt phosphorylation levels in nasal， lung and intestinal tissues of rats in the model group were significantly increased （ P ＜0.05）； the IL-10 levels in nasopharyngeal lavage fluid， BALF and intestinal mucus were significantly decreased （ P ＜0.05）. Alveolar atrophy， collapse and even fusion， abnormal hyperplasia and hypertrophy of bronchial smooth muscle， and massive inflammatory cell infiltration were observed. Compared with the model group， most of the above quantitative indicators in the BMSCs group， BMSCs+modified Xiaoqinglong decoction group and BMSCs+dexamethasone group were significantly reversed （ P ＜0.05）， and pathological injuries of lung tissues were markedly alleviated. Compared with the BMSCs group， most of the above quantitative indicators were further improved in the BMSCs+modified Xiaoqinglong decoction group （ P ＜0.05）. CONCLUSIONS Modified Xiaoqinglong decoction combined with BMSCs can effectively improve nasal-pulmonary-intestinal mucosal immunity and relieve asthmatic symptoms in cold asthma rats， and its mechanism may be related to inhibiting the activation of the PI3K/Akt signaling pathway.

[摘 要] 目的：探讨β-catenin/CREB结合蛋白（CBP）通路抑制剂PRI-724联合伊马替尼对BCR-ABL1阳性慢性髓系白血病（CML）细胞及荷瘤模型的抗肿瘤作用及其潜在机制。方法：体外实验采用人K562细胞、能够稳定表达野生型BCR-ABL1（32D-WT）和T315I突变型BCR-ABL1（32D-T315I）的鼠源32D髓系细胞。采用CCK-8法检测伊马替尼、PRI-724单药及联合处理对细胞存活能力的影响，并计算半数抑制浓度（IC50）和联合指数（CI）；采用SA-β-gal染色检测细胞衰老相关表型；采用免疫共沉淀（Co-IP）法检测PRI-724对β-catenin与CBP/p300相互作用的影响。体内实验采用K562、32D-WT和32D-T315I细胞建立裸鼠皮下荷瘤模型，分别设未治疗组、伊马替尼组、PRI-724组及伊马替尼+PRI-724组，并给予相应处理，观察瘤体生长变化，并基于肿瘤生长抑制率（TGI）计算体内CI。采用WB法检测瘤组织中PI3K/AKT信号通路相关蛋白、核内β-catenin/CBP及下游效应因子c-Myc、Cyclin D1的表达。结果：伊马替尼和PRI-724对K562、32D-WT和32D-T315I细胞均呈浓度依赖性抑制作用。伊马替尼对K562、32D-WT和32D-T315I细胞的IC50分别为0.860、0.594和1.646 μmol/L；PRI-724对上述3种细胞的IC50分别为1.120、0.761和0.756 μmol/L。与32D-WT细胞相比，32D-T315I细胞对伊马替尼的敏感性降低，而对PRI-724的敏感性未见明显下降。K562、32D-WT和32D-T315I细胞中伊马替尼 + PRI-724联合处理的CI分别为0.635、0.780和0.689，提示两药在体外具有协同抑制作用。SA-β-gal染色显示，与伊马替尼单药组相比，PRI-724单药组3种CML细胞β-gal阳性细胞比例均升高，联合伊马替尼后进一步升高。Co-IP结果显示，PRI-724处理后β-catenin免疫沉淀复合物中CBP共沉淀水平降低，而p300共沉淀水平升高。体内实验显示，与伊马替尼单药组相比，伊马替尼 + PRI-724联合组瘤体体积和瘤体质量进一步降低；但基于TGI计算的K562、32D-WT和32D-T315I荷瘤模型体内CI均 > 1，提示在当前剂量和给药方案下，两药体内联合效应未达到理论相加预期，可能存在拮抗趋势。WB结果显示，与伊马替尼单药组相比，联合治疗组瘤体组织中p-PI3K/PI3K、p-AKT/AKT比值降低，核内β-catenin、CBP、c-Myc和Cyclin D1表达水平均降低。结论：PRI-724联合伊马替尼在体外具有协同抑制作用，并可在体内较伊马替尼单药进一步抑制瘤体生长。其机制可能与调节β-catenin/CBP/p300复合物、抑制PI3K/AKT信号通路及下调c-Myc、Cyclin D1表达有关。

Objective: To investigate the efficacy, safety, and traditional Chinese medicine (TCM) medication patterns of rituximab (RTX) combined with TCM on treating children with steroid-dependent nephrotic syndrome (SDNS). Methods: One hundred and forty-three children with SDNS who visited the Pediatric Nephrology Department of the First Affiliated Hospital of Henan University of Chinese Medicine from January 2018 to December 2022 were enrolled. A cohort study design was adopted, with " RTX treatment" as the exposure factor. Children who met this exposure factor were assigned to the RTX cohort (RTX, glucocorticoid, immunosuppressive agent, combined with traditional Chinese medicine syndrome differentiation treatment), whereas those who did not were assigned to the basic treatment cohort (glucocorticoid, immunosuppressive agent, combined with traditional Chinese medicine syndrome differentiation treatment ), and followed up for 6 months. The frequency of urinary protein recurrences, urinary protein remission duration, proportion and duration of steroid reduction and cessation, cumulative usage of steroids, proportion of recurrence, recurrence amount of steroid used, efficacy of TCM syndrome, and laboratory and safety indicators after treatment, and height and CD19+ B cell count before and after treatment were compared between the two cohorts. The medication patterns of TCM in the two cohorts were analyzed using frequency statistics, association rule analysis, and systematic clustering analysis. Results: Compared with the basic treatment cohort, the RTX cohort showed a decrease in the frequency of urinary protein recurrence, extended sustained remission of urinary protein, an increase in the proportion of steroid reduction and cessation, a shorter duration of steroid reduction and cessation, a decrease in cumulative steroid dosage, a lower recurrence rate, a decrease in CD19+ B cell count, and a decrease in 24-h urinary total protein quantification and the level of cholesterol (P<0.05). No significant difference in the recurrence amount of steroid used, height, TCM syndrome efficacy, albumin, aspartate transaminase, blood urea nitrogen, platelet count, and safety indicators between the two cohorts. Children with SDNS were mostly characterized by qi and yin deficiency syndrome, followed by spleen and kidney yang deficiency syndrome. A total of 175 TCMs were included, including 28 high-frequency drugs such as Huangqi, Fuling, Gancao, Baizhu, Dangshen, and Jiuyurou. The primary use of medication is to nourish the qi and spleen, nourish the kidney, and warm yang. The analysis of association rules yielded eight binary associations and ten three-phase associations, with Huangqi, Baizhu, Fuling, and Dangshen, being the most closely related. Cluster analysis identified four TCM combinations, primarily focusing on tonifying kidney and replenishing essence, benefiting qi and nourishing yin, and removing blood stasis. Conclusion RTX combined with TCM syndrome differentiation treatment can reduce the recurrence frequency of SDNS, prolong the remission period, reduce the glucocorticoid dosage, and have no marked effect on height growth. No apparent adverse reactions were observed. TCM should focus on nourishing qi and yin while removing blood stasis.

Objective To explore the efficacy of 3D modeling-assisted minimally invasive surgery in the treatment of type B and type C Pilon fractures.Methods A retrospective analysis was performed on the clinical data of 82 patients with Pilon fractures admitted to our hospital from March 2018 to May 2023.According to different surgical methods,they were divided into the control group and the observation group,with 41 cases in each group.For the patients in the control group,the surgical plan was routinely planned by referring to X-ray and CT images.While patients in the observation group adopted 3D modeling to assist in planning the surgical plan.The operation time,intraopera-tive blood loss,excellent and good rate of fracture reduction,fracture healing time,ankle joint function score and incidence of complications of the two groups were compared.Results Both groups of patients were followed up for 6 to 12 months.The operation time,intraoperative blood loss,and fracture healing time of patients in the observation group were all shorter/less than those in the control group(P<0.05);the excellent and good rate of fracture reduction in the observation group was higher than that in the control group(P<0.05).The American Orthopaedic Foot and Ankle Society(AOFAS)score and the excellent and good rate of ankle joint function 6 to 12 months after surgery in the observation group were higher than those in the control group(P<0.05).The incidence of complications in the observation group was significantly lower than that in the control group(P<0.05).Conclusion With the assistance of 3D modeling,minimally invasive surgery for type B and type C Pilon fractures can reduce the intraoperative blood loss,shorten the operation time and fracture healing time,improve the excellent and good rate of fracture reduction,promote the recovery of ankle joint function,and reduce the incidence of complications.