1.Analysis of Clinical Prognostic Characteristics in Patients with Primary Sjögren's Syndrome-Related Renal Fanconi Syndrome
Xiaoxiao SHI ; Yuan DONG ; Jiahe JIANG ; Peng XIA ; Shuo ZHANG ; Yubing WEN ; Dong XU ; Fengchun ZHANG ; Limeng CHEN
Medical Journal of Peking Union Medical College Hospital 2026;17(2):358-369
Renal Fanconi syndrome (FS) is a rare renal manifestation of primary Sjögren's syndrome (pSS). This study aims to analyze the clinical and prognostic characteristics of patients with pSS-associated renal FS (pSS-FS) and provide insights for clinical management. Patients diagnosed with pSS-FS via renal biopsy at Peking Union Medical College Hospital from 1993 to 2024 were enrolled. Data collected included age, sex, clinical symptoms (xerostomia, xerophthalmia, skin purpura, arthralgia, polyuria, and systemic symptoms), laboratory findings [serum immunoglobulin G (IgG) and IgM, complement (C3, C4), antinuclear antibody, anti-Sjögren's syndrome-associated antigen A antibody (SSA), anti-SSB antibody, 24-hour urinary protein quantification, tubular proteinuria, serum creatinine, serum electrolytes], treatment, and follow-up information. Systematic assessments included the EULAR Sjögren's Syndrome Disease Activity Index (ESSDAI) score, pulmonary involvement (including non-infectious interstitial pneumonia, pulmonary fibrosis, pulmonary hypertension, etc.), hematological involvement (anemia, leukopenia, thrombocytopenia), etc. Efficacy evaluations encompassed improvements in immunological parameters, renal function, and tubular function. Group comparisons were performed using chi-square/Fisher's exact tests, A total of 38 patients with pSS-FS were included, with 37(97.4%) being female. The median age at pSS diagnosis was 43(37, 57) years. Xerostomia (76.3%) and xerophthalmia (71.1%) were the predominant clinical symptoms. The most common renal tubular dysfunctions were generalized aminoaciduria (96.9%), tubular proteinuria (96.0%), and hypokalemia (94.7%). The median eGFR was 52.57(32.04, 76.10)mL/(min·1.73 m2), with 60.5% (23/38) of patients having an eGFR below 60 mL/(min·1.73 m2).After six months of immunosuppressive therapy, including moderate-to-high-dose glucocorticoids, significant improvements were observed in immunological parameters (improvement rate: 69.2%), renal tubular function (89.5%), and renal function (44.4%). Following immunosuppressive treatment, the median eGFR increased from 54.95(33.06, 76.10)mL/(min·1.73 m2) to 65.56(56.24, 83.58)mL/(min·1.73 m2).Compared to patients with normal or mildly impaired baseline eGFR [≥ 60 mL/(min·1.73 m2)], those with significantly decreased baseline eGFR [< 60 mL/(min·1.73 m2)] were older (46 years This study reports the clinical characteristics of the largest single-center cohort of pSS-FS patients internationally, characterized by varying degrees of proximal renal tubular dysfunction and renal impairment. Timely initiation of immunosuppressive therapy, including glucocorticoids, is crucial, particularly for patients with significantly reduced eGFR, who may experience more substantial renal function improvement.
2.Clinical Efficacy and Mechanism of Bupi Qingfei Prescription in Treating Stable Bronchiectasis
Zi YANG ; Guangsen LI ; Bing WANG ; Bo XU ; Jianxin WANG ; Sheng CAO ; Xinyan CHEN ; Xia SHI ; Qing MIAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):162-169
ObjectiveTo explore the clinical efficacy and mechanism of Bupi Qingfei prescription (BPQF) in treating stable bronchiectasis in the patients with syndromes of lung-spleen Qi deficiency and phlegm-heat accumulation in the lungs. MethodsA randomized, double-blind, placebo-controlled trial was conducted. Patients were randomized into BPQF and placebo control (PC) groups. On the basis of conventional Western medicine treatment, the BPQF granules and placebo were respectively administered at 10 g each time, twice a day, for a course of 24 weeks. The TCM symptom scores, Quality of Life Questionnaire for Bronchiectasis (QOL-B) scores, lung function indicators, T lymphocyte subsets, level of inflammatory factors in the sputum, level of neutrophil elastase (NE) in the sputum, and occurrence of adverse reactions were observed before and after treatment in the two groups. ResultsA total of 64 patients completed the study, encompassing 32 in the BPQF group and 32 in the PC group. After treatment, the BPQF group showed decreased TCM symptom scores (P<0.01), increased QOL-B scores (P<0.01), and declined levels of tumor necrosis factor (TNF)-α and NE (P<0.05, P<0.01). The PC group showed decreased TCM symptom (except spleen deficiency) scores (P<0.01), increased the QOL-B health cognition and respiratory symptom domain scores (P<0.05, P<0.01), and a declined TNF-α level (P<0.01). Moreover, the BPQF group had lower TCM symptom (except chest tightness) scores (P<0.05, P<0.01), higher QOL-B (except treatment burden) scores (P<0.05, P<0.01), and lower levels of interleukin-6 and TNF-α (P<0.05) than the PC group. Neither group showed serious adverse reactions during the treatment process. ConclusionBPQF can ameliorate the clinical symptoms of stable bronchiectasis patients who have lung-spleen Qi deficiency or phlegm-heat accumulation in the lungs by regulating the immune balance and inhibiting airway inflammatory responses.
3.Impact of peripheral blood inflammatory markers on neovascular glaucoma secondary to diabetic retinopathy
Mingfang WANG ; Wenwen ZHU ; Deyu XIA ; Dengrui XU ; Yawen SHI ; Hongchen FU ; Qian ZHAO ; Xiuyun LI
International Eye Science 2025;25(6):1005-1008
AIM: To investigate the influence of relevant inflammatory markers in peripheral blood on the progression of neovascular glaucoma(NVG)secondary to diabetic retinopathy(DR)patients.METHODS: Retrospective case-control study. Patients were categorized into two groups based on the presence or absence of NVG: those with proliferative diabetic retinopathy(PDR)alone(PDR group, n=148)and those with NVG secondary to PDR(NVG secondary to PDR group, n=142). Peripheral blood inflammatory markers were evaluated, including white blood cell-related indices, neutrophil-to-lymphocyte ratio(NLR), platelet-to-lymphocyte ratio(PLR), monocyte-to-lymphocyte ratio(MLR), and systemic immune-inflammation index(SII). The distinctions in peripheral blood inflammatory markers between the two groups of patients and their relationships with NVG secondary to PDR were analyzed.RESULTS:No statistically significant differences were observed in basic characteristics between the two groups, confirming their comparability. However, significant differences were found in eosinophil percentage and MLR between the PDR group and the NVG secondary to PDR group(all P<0.05), with both values being significantly higher in the NVG secondary to PDR group. Multivariate Logistic regression analysis revealed that the eosinophil percentage and the MLR were factors influencing the development of patients with NVG secondary to PDR.CONCLUSION: Eosinophil percentage and MLR may be associated with the progression of PDR to NVG, and could serve as potential predictive markers for NVG development in PDR patients.
4.Impacts of retinal non-perfusion areas on neovascular glaucoma secondary to proliferative diabetic retinopathy
Deyu XIA ; Jinyan ZHANG ; Mingfang WANG ; Qingmin JIANG ; Dengrui XU ; Yawen SHI ; Xiuyun LI
Recent Advances in Ophthalmology 2025;45(5):375-381
Objective To compare the distribution characteristics of retinal capillary non-perfusion areas(NPAs)across different layers and regions in patients with neovascular glaucoma(NVG)secondary to proliferative diabetic retinop-athy(PDR)versus those with PDR alone through wide-field swept-source optical coherence tomography angiography(SS-OCTA)and to analyze the impacts of NPAs on the development of NVG.Methods This prospective cross-sectional study enrolled 33 patients with PDR(33 eyes,the PDR group)and 30 patients with NVG(30 eyes,the PDR+NVG group)diag-nosed at Affiliated Hospital of Shandong Second Medical University(formerly Weifang Medical University)from January 2022 to June 2023.The fundus examination was performed using SS-OCTA,and the NPA boundaries of the superficial capil-lary plexus(SCP)and deep capillary plexus(DCP)of the retina were manually delimited with the aid of ImageJ.The reti-na was divided based on two methods.Specifically,according to different concentric circles,the retina could be divided in-to the foveal area,parafoveal area,perifoveal area,annulus6-9,annulus9-12,annulus12-retinal boundary;besides,the ret-ina could also be divided into four quadrants(supratemporal,infratemporal,supranasal,and infranasal quadrants)based on the horizontal and vertical lines centered on the macular fovea.Based on that,the NPA area and ischemia index(ISI)in each layer and subdivision of the two groups of patients were counted.Additionally,the NPA and ISI in different concentric circles and different quadrants of the SCP and DCP were compared between the two groups.Moreover,the distribution characteristics of NPAs as well as the effect of NPAs on NVG were analyzed.Results(1)The NPA area and ISI in the DCP were larger than those in the SCP in both groups(all P<0.001);the NPA area and ISI in the SCP and DCP of patients in the PDR+NVG group were larger than those in the PDR group(all P<0.001).(2)In the supratemporal,infratemporal,supranasal,and infranasal quadrants,the NPA area and ISI in the SCP and DCP of patients in the PDR+NVG group were larger than those in the PDR group(all P<0.01).The NPA area in the inferotemporal quadrant was the largest in the SCP and DCP,respectively,within each group(all P<0.01).(3)The differences in the NPA area and ISI between the two groups were statistically significant in the annulus6-9,annulus9-12,and annulus12-retinal boundary in the SCP and DCP(all P<0.01).The differences in the NPA area and ISI were statistically significant between different annular subdivisions in the SCP and DCP within each group(all P<0.001).The multiple comparison results showed that the NPA area and ISI of the annulus12-retinal boundary in the SCP and DCP were larger than those in other annuli in both groups(all P<0.05).The NPA area and ISI of the annulus9-12 were larger than those of the parafoveal and perifoveal areas;the NPA area and ISI of the annulus6-9 were larger than those of the parafoveal area(all P<0.05).There was no statistically significant differ-ence in the NPA area and ISI in the remaining annuli(all P>0.05).(4)The multivariate logistic regression analysis showed that the NPA area and ISI in the subnasal quadrant of the SCP were negatively correlated with the risk of NVG sec-ondary to PDR(P=0.036 and 0.038).The increased NPA area and ISI in the subnasal quadrant of the DCP were risk fac-tors for NVG secondary to PDR,and they may increase the risk of NVG(P=0.029 and 0.028).Conclusion The in-creased NPA area and ISI in the subnasal quadrant of the DCP were risk factors for secondary NVG in patients in the PDR group.
5.Association between inflammation-related dietary patterns and cognitive impairment in older adults aged 65 years and above in longevity areas of China: a reduced rank regression analysis
Yang LI ; Zihan LU ; Yangyang XIONG ; Wenjing CHEN ; Jun WANG ; Zenghang ZHANG ; Chen CHEN ; Wenhui SHI ; Xi MENG ; Zhenwei ZHANG ; Zinan XU ; Yuan XIA ; Yiqi LI ; Honglin LAI ; Yujie LI ; Cuipeng ZHANG ; Yuming ZHAO ; Yuebin LYU ; Xiaoming SHI
Chinese Journal of Epidemiology 2025;46(5):737-745
Objective:To analyze the association between inflammation-related dietary patterns and the risk for cognitive impairment in older adults aged ≥65 years in longevity areas in China by using reduced rank regression (RRR) analysis.Methods:This study used cross-sectional data from the 2021 Healthy Aging and Biomarkers Cohort Study, including the information about study participants' demographic characteristics, lifestyles, daily life activities, and disease histories. Dietary intake was obtained by using a simplified food frequency questionnaire. Cognitive impairment was evaluated based on the Mini-Mental State Examination Scale combined with years of education. Fasting venous blood samples were collected to detect inflammatory markers, especially high-sensitivity C-reactive protein (hs-CRP) and the platelet-to-lymphocyte ratio (PLR). RRR analysis was used to obtain inflammation-related dietary patterns using hs-CRP and PLR as response variables. Multivariate logistic regression model was used to analyze the association between dietary pattern score and the risk for cognitive impairment. Restricted cubic spline was used to explore the dose response relationship, and mediation analysis was used to quantify the mediating effects of hs-CRP and PLR.Results:Two dietary patterns were identified with RRR. The primary pattern was characterized by higher intakes of flour, red meat, and dairy products, and lower intake of fresh vegetables, explaining 6.84% of the variance in food intake and 0.50% of the variance in inflammatory markers. Compared with the T1 group, the T3 group had significantly higher risk for cognitive impairment ( OR=1.242, 95% CI: 1.034-1.491). Each one standard deviation increase in the dietary pattern score was associated with an 8.7% increase in the risk for cognitive impairment ( OR=1.087, 95% CI: 1.008-1.172), with a significant linear trend (overall-model P<0.001, non-linear P=0.295). Mediation analysis indicated that hs-CRP mediated 6.2% of the association between the dietary pattern and the risk for cognitive impairment. Conclusion:The inflammation- related dietary pattern characterized by higher consumption of flour, red meat, and dairy products and lower consumption of fresh vegetables is associated with an increased risk for cognitive impairment in older adults, and hs-CRP partially mediates this association.
6.Guideline for Adult Weight Management in China
Weiqing WANG ; Qin WAN ; Jianhua MA ; Guang WANG ; Yufan WANG ; Guixia WANG ; Yongquan SHI ; Tingjun YE ; Xiaoguang SHI ; Jian KUANG ; Bo FENG ; Xiuyan FENG ; Guang NING ; Yiming MU ; Hongyu KUANG ; Xiaoping XING ; Chunli PIAO ; Xingbo CHENG ; Zhifeng CHENG ; Yufang BI ; Yan BI ; Wenshan LYU ; Dalong ZHU ; Cuiyan ZHU ; Wei ZHU ; Fei HUA ; Fei XIANG ; Shuang YAN ; Zilin SUN ; Yadong SUN ; Liqin SUN ; Luying SUN ; Li YAN ; Yanbing LI ; Hong LI ; Shu LI ; Ling LI ; Yiming LI ; Chenzhong LI ; Hua YANG ; Jinkui YANG ; Ling YANG ; Ying YANG ; Tao YANG ; Xiao YANG ; Xinhua XIAO ; Dan WU ; Jinsong KUANG ; Lanjie HE ; Wei GU ; Jie SHEN ; Yongfeng SONG ; Qiao ZHANG ; Hong ZHANG ; Yuwei ZHANG ; Junqing ZHANG ; Xianfeng ZHANG ; Miao ZHANG ; Yifei ZHANG ; Yingli LU ; Hong CHEN ; Li CHEN ; Bing CHEN ; Shihong CHEN ; Guiyan CHEN ; Haibing CHEN ; Lei CHEN ; Yanyan CHEN ; Genben CHEN ; Yikun ZHOU ; Xianghai ZHOU ; Qiang ZHOU ; Jiaqiang ZHOU ; Hongting ZHENG ; Zhongyan SHAN ; Jiajun ZHAO ; Dong ZHAO ; Ji HU ; Jiang HU ; Xinguo HOU ; Bimin SHI ; Tianpei HONG ; Mingxia YUAN ; Weibo XIA ; Xuejiang GU ; Yong XU ; Shuguang PANG ; Tianshu GAO ; Zuhua GAO ; Xiaohui GUO ; Hongyi CAO ; Mingfeng CAO ; Xiaopei CAO ; Jing MA ; Bin LU ; Zhen LIANG ; Jun LIANG ; Min LONG ; Yongde PENG ; Jin LU ; Hongyun LU ; Yan LU ; Chunping ZENG ; Binhong WEN ; Xueyong LOU ; Qingbo GUAN ; Lin LIAO ; Xin LIAO ; Ping XIONG ; Yaoming XUE
Chinese Journal of Endocrinology and Metabolism 2025;41(11):891-907
Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.
7.Feasibility and exploration of optimal communication models for robot-assisted urological telesurgery: a multicenter, single-arm, retrospective study
Ye WANG ; Taoping SHI ; Sheng TAI ; Sunyi YE ; Yubai ZHANG ; Bingzhang QIAO ; Chenfeng WANG ; Gen CHENG ; Zhi LI ; Qing AI ; Qingbo HUANG ; Baojun WANG ; Qing YUAN ; Junnan XU ; Guojun LIU ; Yu CHEN ; Wuyi ZHAO ; Jianle MAO ; Shiwei LI ; Shuo WANG ; Dan XIA ; Wanhai XU ; Chaozhao LIANG ; Hongzhao LI ; Xin MA ; Xu ZHANG
Chinese Journal of Urology 2025;46(5):331-336
Objective:To evaluate the efficacy and feasibility of a domestically developed robotic surgical system based on fiber-optic dedicated line communication in cross-regional urological telesurgery.Methods:This was multicenter,single-arm,retrospective case series study. The data of patients who underwent urological telesurgeries using the telesurgical system between January 2023 and December 2024 were analyzed. The cohort included 59 patients from seven hospitals across China. Among the patients,47 were male(79.7%)and 12 were female(20.3%),with a median age of 63.0(56.0,68.0)years and a body mass index of(24.7 ± 3.0)kg/m 2. Surgical procedures included 32 radical prostatectomies,24 partial nephrectomies,one radical nephrectomy,one adrenalectomy,and one ureteral reconstruction. The perioperative indicators,pathological results and postoperative complications were analyzed. The network monitoring data were collected,and the perioperative data of patients,remote system monitoring data and costs were compared between the two communication modes of optical transport network(OTN)and cloud-connect network(CCN). Results:All 59 remote surgeries were successfully completed,with a mean operative time of(138.0 ± 54.0)minutes,median intraoperative blood loss of 50.0(30.0,100.0)ml and a postoperative hospital stay of 5.0(4.0,6.0)days. No cases required reoperation,Clavien-Dindo grade ≥3 complications,or readmission. The geographical distance between the primary and remote surgical sites ranged from 450 to 2 800 km. Network monitoring revealed increased bidirectional latency with distance increasing:the shortest latency time(Hefei-Hangzhou,450 km)was(16.59 ± 0.80)ms,while the longest(Harbin-Hangzhou,2 200 km)latency time was(53.31 ± 0.31)ms. Average frame loss per procedure was 0?1.27 frames. The results of subgroup analysis comparing OTN and CCN communication modes showed no significant differences in operative time[(130.7 ± 70.5)minutes vs.(142.1 ± 42.9)minutes, P = 0.442],postoperative hospitalization[6.0(4.0,8.0)d vs. 5.0(4.0,6.0)d, P = 0.581],or readmission rates(0 vs. 0). However,CCN demonstrated significant cost advantages with 500 RMB per operation vs. 3 000 RMB per operation for OTN. Conclusions:Urological telesurgery using fiber-optic communication is feasible. The CCN mode,with its cost-effectiveness,excellent usability,and multi-point interconnection flexibility,is currently the preferred communication model for telesurgical applications.
8.Clinical characteristics and outcomes of elderly patients with stage Ⅰ diffuse large B-cell lymphoma: a study by the Jiangsu Cooperative Lymphoma Group (JCLG)
Yi XIA ; Jing HE ; Weiying GU ; Tao JIA ; Tingxun LU ; Yongle LI ; Jiahao ZHOU ; Bingzong LI ; Haiying HUA ; Ping LIU ; Yuqing MIAO ; Yuexin CHENG ; Xiaoyan XIE ; Yunping ZHANG ; Wenzhong WU ; Zhuxia JIA ; Xuzhang LU ; Chunling WANG ; Liang YU ; Min XU ; Jinning SHI ; Weifeng CHEN ; Wanchuan ZHUANG ; Zhen QIAN ; Jun QIAN ; Haiwen NI ; Yifei CHEN ; Qiudan SHEN ; Jianyong LI ; Wenyu SHI
Chinese Journal of Internal Medicine 2025;64(6):504-513
Objective:To summarize the clinical characteristics of elderly patients with stage Ⅰ diffuse large B-cell lymphoma (DLBCL) and analyze the factors associated with prognosis.Methods:A case series study was conducted by retrospectively collecting clinical data from patients aged over 60 years with newly diagnosed stage Ⅰ DLBCL across 20 medical centers in Jiangsu Province, China, between June 2010 and April 2023. The involved site, classification and treatment plan were summarized. The primary endpoints were progression-free survival (PFS) and overall survival (OS). Statistical analyses were performed using the Kaplan-Meier method, and Cox regression model.Results:The study included 255 patients with a median age of 69 years, of whom 130 (51.0%) were male, 66 (25.9%) were aged ≥75 years and 26 (10.1%) had a high Charlson Comorbidity Index (CCI) score of ≥2. Extranodal involvement was observed in 163 (63.9%) patients, with the stomach (37.4%, 61/163), intestine (19.0%, 31/163), testes (11.0%, 18/163), and breast (7.4%, 12/163) being the most frequently affected sites. The non-germinal center B-cell (non-GCB) subtype was prevalent in 63.7% of patients (142/223), with no significant difference between the nodal and extranodal groups ( P=0.681). Furthermore, 73.9% (184/249) and 11.7% (29/249) of patients received the R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) and R-miniCHOP regimen, respectively. The overall 3-year PFS rate was 81.5%, and the 3-year OS rate was 85.6%. Patients aged ≥75 years ( HR=2.910, 95% CI 1.565-5.408, P=0.001) and/or with a CCI score ≥2 ( HR=2.324, 95% CI 1.141-4.732, P=0.020) had a significantly poorer PFS. Incorporating age ≥75 years and CCI score ≥2 into the stage-modified international prognostic index (sm-IPI) can better stratify the prognosis of elderly patients with stage Ⅰ DLBCL. The 3-year PFS rate was 48.7% in the high-risk group versus 85.7% in the low-risk group ( P<0.001). Conclusions:Our findings show that the elderly patients with stage Ⅰ DLBCL were predominantly characterized by extranodal involvement (particularly in the stomach and intestinal tract) and non-GCB subtype. Age ≥75 years and CCI ≥2 were identified as independent prognostic factors. The newly established sm-IPI-75-CCI incorporating these factors demonstrated superior prognostic discrimination compared to conventional risk assessment systems.
9.Application of comprehensive unit-based safety program collaborative action strategy in preventing catheter-associated urinary tract infection among elderly patients and its effect
Xiaofei XU ; Lingling ZHU ; Xian XIA ; Huili LI ; Jingjing YAN ; Ting WU ; Jinfen SHI
Chinese Journal of Nosocomiology 2025;35(20):3151-3155
OBJECTIVE To explore the effect of the comprehensive unit-based safety program(CUSP)collaborative action strategy on reducing the incidence of catheter-associated urinary tract infection(CAUTI)in elderly patients.METHODS From Jun.to Nov.2024,the Seventh Medical Center of the PLA General Hospital implemented the CUSP collaborative action strategy for intervention.Comparisons were made between pre-intervention(from Dec.2023 to May 2024)and post-intervention(from Jun.to Nov.2024)regarding nurses' know ledge-attitude-practice(KAP)scores on CAUTI prevention,implementation rates of key nursing measures for elderly CAUTI prevention and CAUTI incidence rates among elderly patients.RESULTS The pre-intervention KAP score of nurses from geriatric de-partment on CAUTI prevention was(83.44±6.67),significantly lower than the post-intervention score(108.19±16.27)(P<0.001).The implementation rates of 10 key nursing measures for elderly CAUTI prevention improved(P<0.05).The incidence rate of CAUTI was 2.88‰(16/5 546)among 5 546 catheter days before the intervention,and the incidence rate of CAUTI was 0.73‰(4/5 496)among 5 496 catheter days after the intervention(P=0.008).CONCLUSIONS The CUSP collaborative action strategy effectively enhances the KAP levels of nurses from geriatric department on CAUTI prevention,improves the implementation rates of key nursing measures,and reduces CAUTI incidence rates among elderly patients.
10.Short-term efficacy of a 3D printed microporous titanium prosthesis in the treatment of large segmental tibial defects
Yongqing XU ; Xinyu FAN ; Teng WANG ; Shaoquan PU ; Xingbo CAI ; Wei LIN ; Xi YANG ; Xia LI ; Jian SHI ; Yipeng WU ; Jian LI ; Min LIU
Chinese Journal of Orthopaedic Trauma 2025;27(6):529-535
Objective:To investigate the short-term clinical efficacy of implantation with a 3D-printed microporous titanium prosthesis in the treatment of large segmental infectious tibial defects.Methods:A retrospective analysis was conducted of the electronic medical records of the 47 patients with large segmental tibial defects who had been treated with 3D-printed microporous titanium prostheses at Department of Orthopaedics, 920th Hospital of Joint Logistics Support Force from January 2019 to February 2024. The cohort included 36 males and 11 females, with an age of (46.2±11.8) years and a mean bone defect length of 12.3 (8.0, 16.8) cm. In the 19 patients complicated with soft tissue defects, the area of soft tissue defects ranged from 10.0 cm × 6.0 cm to 33.0 cm × 10.0 cm. For the 28 patients without soft tissue defects at the lower leg, the bone defects were filled with vancomycin-loaded calcium sulfate bone cement at the first stage; for the 19 patients complicated with soft tissue defects, the soft tissue defects at the lower limb were repaired using an anterolateral thigh flap with vascular anastomosis at the same time when bone defects were filled with vancomycin-loaded calcium sulfate bone cement at the first stage. After infection control at 2 to 8 months after surgery, individualized 3D-printed microporous titanium prostheses were implanted at the second stage to reconstruct the bone defects. Postoperative observations included the patients' first standing time, crutch walking time, full weight-bearing time, osseointegration of the tibial fracture and the prosthesis, and complications during follow-up.Results:The follow-up period for the 47 patients was (34.7±14.3) months. The first standing time was (2.2±0.6) months, crutch walking time (3.8±1.1) months, and full weight-bearing time (5.3±1.2) for this cohort. The evaluation by the Paley's bone healing score resulted in 25 excellent cases, 18 good cases, 1 medium case, and 3 poor cases, giving an excellent and good rate of 91.5% (43/47). One year after operation, the X-ray films showed that the tibial fractures and prostheses were well integrated in the 43 patients. Two patients developed recurrent tibial infection which was responded to replacement of the vancomycin-loaded calcium sulfate spacer. The fixation screws for tibial prosthesis were broken in one patient, but no recurrence of infection was observed after revision. The overall incidence of complications was 6.4% (3/47).Conclusion:In the treatment of large segmental infectious tibial defects, by facilitating rapid functional recovery and ensuring a low incidence of complications, implantation with a 3D-printed microporous titanium prosthesis demonstrates fine short-term clinical efficacy.

Result Analysis
Print
Save
E-mail