1.Trends in incidence and mortality of esophageal cancer in cancer registration areas of Anhui Province from 2014 to 2020
ZHU Qiang ; DAI Dan ; MENG Qinglian ; LÜ ; Yili ; DOU Lianjie ; DOU Tingting ; WANG Huadong
Journal of Preventive Medicine 2025;37(10):991-996
Objective:
To investigate the trends in incidence and mortality of esophageal cancer in cancer registration areas of Anhui Province from 2014 to 2020, so as to provide the basis for formulating prevention and control measures.
Methods:
The incidence and mortality data of esophageal cancer in Anhui Province from 2014 to 2020 was collected through the Cancer Registry in Anhui Province. The crude incidence and crude mortality were calculated. The Chinese population-standardized rate was standardized using the age structure of the standard population from the Fifth National Population Census in 2000. The trends in incidence and mortality of esophageal cancer were analyzed using the average annual percent change (APPC), stratified by genders, urban/rural areas, and ages.
Results:
In Anhui Province, the rank of esophageal cancer incidence dropped from the third in 2014 to the sixth in 2020. Concurrently, the crude incidence and Chinese population-standardized incidence declined from 28.74/100 000 and 20.74/100 000 to 19.23/100 000 and 10.59/100 000, respectively (AAPC=-5.846%, -9.658%, both P<0.05). The mortality rank remained stable at the fourth in 2014 and 2020, while the crude mortality and Chinese population-standardized mortality decreased from 19.96/100 000 and 14.09/100 000 to 16.00/100 000 and 8.41/100 000, respectively (AAPC=-3.542%, -7.784%, both P<0.05). The Chinese population-standardized incidence (AAPC=-9.682%, -9.188%, -6.175% and -12.575%, all P<0.05) and Chinese population-standardized mortality (AAPC=-7.734%. -7.447%. -5.366% and -10.209%, all P<0.05) showed declining trends in males, females, urban, and rural areas, respectively. From 2014 to 2020 in Anhui Province, the crude incidence and mortality of esophageal cancer generally increased with age. However, significant declining trends were observed in crude incidence (AAPC=-12.779%, -11.701%, -11.955% and -5.751%, all P<0.05) and crude mortality (AAPC=-12.255%, -11.120%, -10.985% and -5.751%, all P<0.05) for the age groups of 40-<50, 50-<60, 60-<70, 70-<80 years. A significant declining trend in crude incidence was also seen in the ≥80 years group (APPC=-6.334%, P<0.05), but the trend in crude mortality was no statistically significant (P>0.05).
Conclusion
In registration areas of Anhui Province, the incidence and mortality of esophageal cancer exhibited a declining trend from 2014 to 2020, calling for focused attention on the middle-aged and elderly population and enhanced health behaviors such as tobacco and alcohol control.
2.Comparative efficacy of O-arm navigation-assisted versus C-arm-guided percutaneous vertebroplasty for postoperative recurrent vertebral fractures following Kümmell′s disease
Kun WANG ; Wei MEI ; Zhenhui ZHANG ; Yaojun DAI ; Shuang CHEN ; Xiaopan CHANG ; Yili LI ; Jinlu WANG ; Yong YANG
Chinese Journal of Trauma 2025;41(8):732-739
Objective:To compare the clinical efficacy of O-arm navigation-assisted percutaneous vertebroplasty (PVP) versus C-arm-guided PVP in the treatment of postoperative recurrent vertebral fractures following Kümmell′s disease.Methods:A retrospective cohort study was conducted to analyze the clinical data of 48 patients with postoperative recurrent vertebral fractures following Kümmell′s disease who were admitted to Zhengzhou Orthopedic Hospital from January 2021 to September 2024, including 16 males and 32 females, aged 51-85 years [(69.8±6.6)years]. Among them, 21 patients had stage I Kümmell′s disease and 27 stage II. Fractured vertebrae involved T 8-T 10 in 4 patients, T 11-L 2 in 29, and L 3-L 5 in 15. Twenty-five patients underwent O-arm navigation-assisted PVP (O-arm-assisted group) and 23 underwent C-arm-guided PVP (C-arm-guided group). The two groups were compared in terms of the operative time, intraoperative blood loss, bone cement volume, and bone cement filling saturation rate in the injured vertebral body. The visual analogue scale (VAS) scores and Oswestry disability index (ODI) values were also compared before operation, at 1 day, 1 month, 6 months after operation, and at the last follow-up. The excellent-good rate based on the MacNab criteria at the last follow-up and incidence of postoperative complications were detected. Results:All the patients were followed up for 6-24 months [(13.3±3.5)months]. There were no significant differences in the operative time, operative blood loss or bone cement volume between the two groups ( P>0.05). The O-arm-assisted group demonstrated a bone cement filling saturation rate of 96% (24/25) in the fractured vertebrae, significantly higher than 65% (15/23) in the C-arm-guided group ( P<0.05). The VAS scores before operation, at 1 day, and 1 month after operation were (8.4±1.0)points, (1.9±0.7)points, and (1.8±0.6)points, respectively in the O-arm-assisted group, while they were (8.3±0.8)points, (2.0±0.6)points, and (1.9±0.5)points, respectively in the C-arm-guided group ( P>0.05). The ODI values before operation, at 1 day, and 1 month after operation were 76.6±8.2, 20.4±4.5, and 19.8±4.1, respectively in the O-arm-assisted group, and 74.9±9.1, 21.3±3.6, and 20.9±3.2, respectively in the O-arm-assisted group ( P>0.05). At 6 months after operation and at the last follow-up, the VAS scores were (1.4±0.5)points and (1.5±0.5)points in the O-arm-assisted group, with significant improvement compared to (1.8±0.4)points and (1.9±0.3)points in the C-arm-guided group ( P<0.01); the ODI values were 17.8±3.2 and 18.2±3.5 in the O-arm-assisted group, with significant improvement compared to 19.9±3.1 and 21.3±4.0 in the C-arm-guided group ( P<0.05). Both groups demonstrated significant improvements in VAS scores and ODI values at 1 day, 1 month, 6 months after operation, and at the last follow-up, compared to those preoperatively ( P<0.05), while no statistically significant differences were found in VAS scores or ODI values at any postoperative timepoints ( P>0.05). According to the MacNab criteria, the O-arm-assisted group had a 100% (25/25) excellent-good rate, compared to 74% (17/23) in the C-arm-guided group ( P<0.05). The complication rate was 4% (1/25) in the O-arm-assisted group, significantly lower than 35% (8/23) in the C-arm-guided group ( P<0.05). Conclusion:O-arm navigation-assisted PVP for postoperative recurrent vertebral fractures following Kümmell′s disease offers advantages in precise cement delivery with sufficient dispersion, enhanced pain relief, functional recovery, improved quality of life, and reduced complication rates when compared to C-arm navigation-assisted PVP.
3.Cancer Incidence and Mortality in Anhui Cancer Regis-tration Areas in 2019 and Trends from 2015 to 2019
Huadong WANG ; Dan DAI ; Qiang ZHU ; Yili LYU ; Tingting DOU ; Weidong LI
China Cancer 2025;34(2):98-107
[Purpose]To analyze cancer incidence and mortality in Anhui cancer registration areas in 2019 and the trends from 2015 to 2019.[Methods]Data from 42 cancer registration areas in Anhui Province in 2019 meeting quality control requirements were collected.The incidence,mor-tality,age-standardized rates by Chinese standard population and world standard population,age-specific rate,accumulation rate(0~74 years old)and the top 10 cancers of high incidence and mortality were calculated by urban and rural areas,sexes and age groups.The standard population of China in 2000 was used for age-standardized incidence or mortality rate(ASIRC or ASMRC),and the Segi world standard population was used for age-standardized incidence or mortality rate(ASIRW or ASMRW),respectively.Joinpoint was used to analyze the incidence and mortality trends from 2015 to 2019,and the annual percentage change(APC)was estimated.[Results]In 2019,the reported incidence rate(crude rate)in Anhui cancer registration areas was 282.87/105(313.24/105 for male,251.19/105 for female),ASIRC and ASIRW were 183.85/105 and 178.94/105,respectively,with the cumulative incidence rate of 20.35%.There was no significant change in the incidence of malignant tumors from 2015 to 2019(APC=-1.00%,P>0.05).The reported mortality rate(crude rate)was 167.20/105(214.67/105 for male,117.67/105 for female),ASMRC and ASMRW were 98.41/105 and 97.15/105,and the cumulative mortality rate was 10.68%.There was no significant change in the mortality rate of malignant tumors from 2015 to 2019(APC=-3.44%,P>0.05).The incidence and mortality rate of lung cancer ranked the first in urban and rural popu-lations of all genders.The incidence rate of female breast cancer ranked the third and the mortali-ty rate ranked the sixth of all malignancies.The incidence and mortality of malignant tumors in men were higher than those in women,and higher in rural areas than those in urban areas,and the main cancer types of rural and urban areas tended to be the same.[Conclusion]From 2015 to 2019,there was no significant change in the incidence and mortality of malignant tumors in the cancer registration areas of Anhui Province,but it is still necessary to prevent and treat lung can-cer and female breast cancer.
4.Defining community pediatric services and establishing supporting strategies under the integrated model for children′s health services
Yili DAI ; Huimei XU ; Zhenyuan SHEN ; Wei YAO ; Tao LIU ; Hongmei HUAN ; Fulai SHEN ; Cui LIU ; Jiaoyu LIU
Chinese Journal of General Practitioners 2025;24(7):801-808
Objective:To establish a set of dynamic definition methods and key operational techniques for community pediatric services contents within the framework of an integrated children health services model.Methods:This was a cross-sectional study. From December 2023 to June 2024, a study was conducted at the Shanghai Gumei Community Health Service Center. The study was divided into three phases: identifying the health needs of community children (Phase A), developing the service content and methods for community children (Phase B), and establishing a community children service network (Phase C). A variety of methods, including questionnaires and focus group interviews, were comprehensively employed in each phase to develop the ABC demand network and its construction approach for community children, and to establish a networked service system.Results:A total of 512 questionnaires were distributed in Phase A, of which 499 were returned for an effective recovery rate of 97.5%. Of the parents, 488 (97.8%, 488/499) would actively seek information related to children′s health. Of those parents, 90.6% (452/499), 80.8% (403/499), and 71.9% (359/499) expressed concern about their children′s growth and development, mental health and social adaptation, and the prevention and treatment of common, frequently occurring diseases, respectively. The research clarified the health needs of children in the community and the health issues of children in different age groups. This included the mental health and social adaptation of community children, as well as common and frequently occurring diseases. The study also revealed a lack of mental health and social adaptation's services for children in the community. After sorting the community′s services into categories such as children′s growth and development detection, diagnosis and treatment of common diseases, and planned immunizations, and establishing corresponding service methods, it was found that Gumei community Health Service Center had strong diagnostic service capabilities for children aged 0-3 and 4-6, but need improved for children aged 7-12 and 13-15. At the same time, a service network consisting of five major categories, represented by medical alliances, has been established to address unmet needs in diagnosis and rehabilitation care for mental health and social adaptation, as well as major diseases.Conclusions:The study has developed an ABC demand network and its construction method for community children. It provides new ideas for defining the content of community pediatric services and establishing supporting methods, and it offers a practical basis for the constructing a community pediatric service system.
5.Association between handgrip strength and chronic kidney disease in adult residents in Anhui Province
Wei XU ; Guodie XIE ; Jingyao HU ; Dan DAI ; Xiuya XING ; Huadong WANG ; Qin HE ; Jingqiao XU ; Yili LYU ; Qianyao CHENG ; Qinglian MENG
Chinese Journal of Epidemiology 2025;46(7):1231-1236
Objective:To explore the independent association between handgrip strength and chronic kidney disease (CKD) in adult residents in Anhui Province using data from the China Adult Chronic Disease and Risk Factor Surveillance (2023).Methods:A multi-stage stratified cluster random sampling method was used to select residents aged ≥18 years for surveys, physical measurements, and laboratory tests. Relevant covariates were adjusted, and a multivariable logistic regression model was established to infer the association between handgrip strength and CKD, followed by subgroup analysis.Results:A total of 7 295 participants were included in the study, with age of (61.5±13.2) years, and 55.6% of the study participants were women. The results of the multivariate logistic regression analysis showed that with each 1.0 kg increase in handgrip strength, the risk for CKD decreased by 1.3% ( OR=0.987, 95% CI: 0.978-0.997). Compared with those with low handgrip strength, the people with moderate hasdgrip strength ( OR=0.818, 95% CI: 0.694-0.964) and high handgrip strength ( OR=0.729, 95% CI: 0.598-0.989) had lower risk for CKD. In the subgroup analysis, the association between handgrip strength and risk for CKD remained unchanged regardless age, sex, smoking status, and alcohol consumption statuys, and the prevalence of hypertension and hyperlipidemia (interaction P>0.05), except BMI and diabetes. Conclusion:The decline in handgrip strength is associated with an increased risk for CKD in adult residents in Anhui.
6.Application of a new type of navigation assisted reduction device in reduction and fixation of A3N0/1 thoracolumbar fracture with the aid of navigation
Yili LI ; Yibao SUN ; Yaojun DAI ; Shuang CHEN ; Xiaoguang ZHOU ; Yong YANG ; Zhenhui ZHANG ; Zhe SHAO ; Xiaoteng LI ; Bo SUN ; Wei MEI
Chinese Journal of Orthopaedics 2025;45(14):918-927
Objective:To evaluate the clinical efficacy of a novel reduction device in the treatment of A3N0/1 thoracolumbar fracture using navigation-assisted techniques.Methods:A retrospective analysis was conducted on 45 patients (29 males, 16 females; mean age 40.67±16.11 years, range 24-57) with thoracolumbar fractures who underwent fracture reduction and pedicle screw fixation via the Wiltse approach at Zhengzhou Orthopaedic Hospital between January 2022 and January 2023. Injury levels included: T 10 in 2 cases, T 11 in 5 cases, T 12 in 13 cases, L 1 in 20 cases, L 2 in 3 cases, L 3 in 2 cases. All patients underwent fracture reduction via the Wiltse approach using the spinal fracture reduction instrument for vertebral body reduction. Among them, 20 patients received O-arm navigation-assisted internal fixation and vertebral reduction (O-arm group), while 25 received C-arm fluoroscopy-guided internal fixation and vertebral reduction (C-arm group). Operative time, intraoperative blood loss, vertebral reduction time using the instrument, first-time screw placement success rate, screw placement accuracy, and complications were compared. Mid-vertebral body height ratio (MVBHr), local Cobb angle of the fractured vertebra, visual analogue scale (VAS) score, and Oswestry disability index (ODI) were compared preoperatively, at 1 week postoperatively, 3 months postoperatively, and final follow-up. Results:All surgeries were successfully completed in both groups. Operative time was significantly shorter in the O-arm group (106.8±14.4 min) than in the C-arm group (119.1±16.4 min, P<0.05). All patients were followed up for a mean duration of 15.9±3.9 months (range 12-20 months). Vertebral reduction time was significantly shorter in the O-arm group (11.0±2.2 min) than in the C-arm group (20.4±5.7 min, P<0.05). The first-time screw placement success rate was significantly higher in the O-arm group (100%) than in the C-arm group (95.3%, P<0.05). Screw placement accuracy (Grade I) was significantly higher in the O-arm group (117 screws, 97.5%) than in the C-arm group (136 screws, 90.7%, P<0.05). No cases of wrong-level surgery, infection, or spinal cord/nerve injury occurred. Both groups showed significant improvements in MVBHr, Cobb angle, VAS, and ODI at all postoperative time points compared to preoperative values ( P<0.05). At final follow-up, the O-arm group demonstrated significantly better outcomes than the C-arm group in MVBHr (90.6%±4.5% vs. 86.4%±6.9%, P<0.05), Cobb angle (7.6°±1.8° vs. 10.1°±3.2°, P<0.05), VAS (1.3±0.4 vs. 1.7±0.6, P<0.05), and ODI (4.6%±1.9% vs. 7.7%±2.0%, P<0.01). Conclusion:O-arm navigation-assisted intrasegmental push reduction for A3N0/1 type thoracolumbar fractures demonstrates advantages including faster and more accurate screw placement, precise reduction with improved outcomes, and significant postoperative pain relief.
7.Percutaneous vertebroplasty using partition injection technique for Kümmell's disease of stages Ⅰ and Ⅱ
Yili LI ; Yong YANG ; Yaojun DAI ; Shuang CHEN ; Xiaoguang ZHOU ; Zhenhui ZHANG ; Zhe SHAO ; Xiaofei XIE ; Xiaoteng LI ; Jili ZHANG ; Tingkun LIU ; Wei MEI
Chinese Journal of Orthopaedic Trauma 2025;27(4):297-304
Objective:To explore the efficacy of percutaneous vertebroplasty (PVP) using the partition injection technique in the treatment of Kümmell’s disease of stages Ⅰ and Ⅱ.Methods:A retrospective study was conducted of the 30 patients with stage Ⅰ or Ⅱ Kümmell’s disease (the partition group) who had been treated by PVP using the partition injection technique at Department of Spinal Surgery, Zhengzhou Orthopedic Hospital from January 2020 to January 2022. The data of another 30 patients who had been treated at the same department and the same period using conventional PVP for stage Ⅰ or Ⅱ Kümmell's disease were selected as the conventional group. In the partition group, there were 13 males and 17 females, with an age of (72.3±10.1) years and disease duration of (3.1±1.5) months. Seventeen thoracic and 13 lumbar vertebrae were affected. In the conventional group, there were 11 males and 19 females, with an age of (75.5±12.7) years and disease duration of (3.5±1.8) months. Eighteen thoracic and 12 lumbar vertebrae were affected. Surgical time, volume of bone cement injected, bone cement leakage, and bone cement distribution were compared between the 2 groups. The heights of the anterior and middle vertebral bodies, kyphotic Cobb angle, visual analog scale (VAS) pain score, and Oswestry disability index (ODI) were assessed postoperatively at 1 day, 6 months, and the last follow-up and compared between the 2 groups.Results:No significant differences were found in the baseline data between the 2 groups, indicating comparability ( P>0.05). All patients were followed up for (17.3±3.1) months. There were no significant differences in the surgical time or bone cement leakage between the 2 groups ( P>0.05). The volume of bone cement injected in the partition group was significantly higher [(6.3±1.5) mL] than that in the conventional group [(4.9±1.0) mL] ( P<0.05). Bone cement distribution was significantly better in the partition group than that in the conventional group ( P<0.05). At postoperative 1 day, 6 months, and the last follow-up, the partition group was significantly better than the conventional group in anterior vertebral body height, middle vertebral body height, and kyphotic Cobb angle ( P<0.05). At the 6-month and the last follow-ups, the partition group was also significantly better than the conventional group in VAS pain score and ODI ( P<0.05). Conclusion:In the treatment of Kümmell’s disease of stages Ⅰ and Ⅱ, compared with conventional PVP, PVP using the partition injection technique may lead to better long-term outcomes due to its better bone cement distribution, more adequate cement injection, and better restoration of vertebral body heights and correction of local deformity.
8.Association between handgrip strength and chronic kidney disease in adult residents in Anhui Province
Wei XU ; Guodie XIE ; Jingyao HU ; Dan DAI ; Xiuya XING ; Huadong WANG ; Qin HE ; Jingqiao XU ; Yili LYU ; Qianyao CHENG ; Qinglian MENG
Chinese Journal of Epidemiology 2025;46(7):1231-1236
Objective:To explore the independent association between handgrip strength and chronic kidney disease (CKD) in adult residents in Anhui Province using data from the China Adult Chronic Disease and Risk Factor Surveillance (2023).Methods:A multi-stage stratified cluster random sampling method was used to select residents aged ≥18 years for surveys, physical measurements, and laboratory tests. Relevant covariates were adjusted, and a multivariable logistic regression model was established to infer the association between handgrip strength and CKD, followed by subgroup analysis.Results:A total of 7 295 participants were included in the study, with age of (61.5±13.2) years, and 55.6% of the study participants were women. The results of the multivariate logistic regression analysis showed that with each 1.0 kg increase in handgrip strength, the risk for CKD decreased by 1.3% ( OR=0.987, 95% CI: 0.978-0.997). Compared with those with low handgrip strength, the people with moderate hasdgrip strength ( OR=0.818, 95% CI: 0.694-0.964) and high handgrip strength ( OR=0.729, 95% CI: 0.598-0.989) had lower risk for CKD. In the subgroup analysis, the association between handgrip strength and risk for CKD remained unchanged regardless age, sex, smoking status, and alcohol consumption statuys, and the prevalence of hypertension and hyperlipidemia (interaction P>0.05), except BMI and diabetes. Conclusion:The decline in handgrip strength is associated with an increased risk for CKD in adult residents in Anhui.
9.Application of a new type of navigation assisted reduction device in reduction and fixation of A3N0/1 thoracolumbar fracture with the aid of navigation
Yili LI ; Yibao SUN ; Yaojun DAI ; Shuang CHEN ; Xiaoguang ZHOU ; Yong YANG ; Zhenhui ZHANG ; Zhe SHAO ; Xiaoteng LI ; Bo SUN ; Wei MEI
Chinese Journal of Orthopaedics 2025;45(14):918-927
Objective:To evaluate the clinical efficacy of a novel reduction device in the treatment of A3N0/1 thoracolumbar fracture using navigation-assisted techniques.Methods:A retrospective analysis was conducted on 45 patients (29 males, 16 females; mean age 40.67±16.11 years, range 24-57) with thoracolumbar fractures who underwent fracture reduction and pedicle screw fixation via the Wiltse approach at Zhengzhou Orthopaedic Hospital between January 2022 and January 2023. Injury levels included: T 10 in 2 cases, T 11 in 5 cases, T 12 in 13 cases, L 1 in 20 cases, L 2 in 3 cases, L 3 in 2 cases. All patients underwent fracture reduction via the Wiltse approach using the spinal fracture reduction instrument for vertebral body reduction. Among them, 20 patients received O-arm navigation-assisted internal fixation and vertebral reduction (O-arm group), while 25 received C-arm fluoroscopy-guided internal fixation and vertebral reduction (C-arm group). Operative time, intraoperative blood loss, vertebral reduction time using the instrument, first-time screw placement success rate, screw placement accuracy, and complications were compared. Mid-vertebral body height ratio (MVBHr), local Cobb angle of the fractured vertebra, visual analogue scale (VAS) score, and Oswestry disability index (ODI) were compared preoperatively, at 1 week postoperatively, 3 months postoperatively, and final follow-up. Results:All surgeries were successfully completed in both groups. Operative time was significantly shorter in the O-arm group (106.8±14.4 min) than in the C-arm group (119.1±16.4 min, P<0.05). All patients were followed up for a mean duration of 15.9±3.9 months (range 12-20 months). Vertebral reduction time was significantly shorter in the O-arm group (11.0±2.2 min) than in the C-arm group (20.4±5.7 min, P<0.05). The first-time screw placement success rate was significantly higher in the O-arm group (100%) than in the C-arm group (95.3%, P<0.05). Screw placement accuracy (Grade I) was significantly higher in the O-arm group (117 screws, 97.5%) than in the C-arm group (136 screws, 90.7%, P<0.05). No cases of wrong-level surgery, infection, or spinal cord/nerve injury occurred. Both groups showed significant improvements in MVBHr, Cobb angle, VAS, and ODI at all postoperative time points compared to preoperative values ( P<0.05). At final follow-up, the O-arm group demonstrated significantly better outcomes than the C-arm group in MVBHr (90.6%±4.5% vs. 86.4%±6.9%, P<0.05), Cobb angle (7.6°±1.8° vs. 10.1°±3.2°, P<0.05), VAS (1.3±0.4 vs. 1.7±0.6, P<0.05), and ODI (4.6%±1.9% vs. 7.7%±2.0%, P<0.01). Conclusion:O-arm navigation-assisted intrasegmental push reduction for A3N0/1 type thoracolumbar fractures demonstrates advantages including faster and more accurate screw placement, precise reduction with improved outcomes, and significant postoperative pain relief.
10.Comparative efficacy of O-arm navigation-assisted versus C-arm-guided percutaneous vertebroplasty for postoperative recurrent vertebral fractures following Kümmell′s disease
Kun WANG ; Wei MEI ; Zhenhui ZHANG ; Yaojun DAI ; Shuang CHEN ; Xiaopan CHANG ; Yili LI ; Jinlu WANG ; Yong YANG
Chinese Journal of Trauma 2025;41(8):732-739
Objective:To compare the clinical efficacy of O-arm navigation-assisted percutaneous vertebroplasty (PVP) versus C-arm-guided PVP in the treatment of postoperative recurrent vertebral fractures following Kümmell′s disease.Methods:A retrospective cohort study was conducted to analyze the clinical data of 48 patients with postoperative recurrent vertebral fractures following Kümmell′s disease who were admitted to Zhengzhou Orthopedic Hospital from January 2021 to September 2024, including 16 males and 32 females, aged 51-85 years [(69.8±6.6)years]. Among them, 21 patients had stage I Kümmell′s disease and 27 stage II. Fractured vertebrae involved T 8-T 10 in 4 patients, T 11-L 2 in 29, and L 3-L 5 in 15. Twenty-five patients underwent O-arm navigation-assisted PVP (O-arm-assisted group) and 23 underwent C-arm-guided PVP (C-arm-guided group). The two groups were compared in terms of the operative time, intraoperative blood loss, bone cement volume, and bone cement filling saturation rate in the injured vertebral body. The visual analogue scale (VAS) scores and Oswestry disability index (ODI) values were also compared before operation, at 1 day, 1 month, 6 months after operation, and at the last follow-up. The excellent-good rate based on the MacNab criteria at the last follow-up and incidence of postoperative complications were detected. Results:All the patients were followed up for 6-24 months [(13.3±3.5)months]. There were no significant differences in the operative time, operative blood loss or bone cement volume between the two groups ( P>0.05). The O-arm-assisted group demonstrated a bone cement filling saturation rate of 96% (24/25) in the fractured vertebrae, significantly higher than 65% (15/23) in the C-arm-guided group ( P<0.05). The VAS scores before operation, at 1 day, and 1 month after operation were (8.4±1.0)points, (1.9±0.7)points, and (1.8±0.6)points, respectively in the O-arm-assisted group, while they were (8.3±0.8)points, (2.0±0.6)points, and (1.9±0.5)points, respectively in the C-arm-guided group ( P>0.05). The ODI values before operation, at 1 day, and 1 month after operation were 76.6±8.2, 20.4±4.5, and 19.8±4.1, respectively in the O-arm-assisted group, and 74.9±9.1, 21.3±3.6, and 20.9±3.2, respectively in the O-arm-assisted group ( P>0.05). At 6 months after operation and at the last follow-up, the VAS scores were (1.4±0.5)points and (1.5±0.5)points in the O-arm-assisted group, with significant improvement compared to (1.8±0.4)points and (1.9±0.3)points in the C-arm-guided group ( P<0.01); the ODI values were 17.8±3.2 and 18.2±3.5 in the O-arm-assisted group, with significant improvement compared to 19.9±3.1 and 21.3±4.0 in the C-arm-guided group ( P<0.05). Both groups demonstrated significant improvements in VAS scores and ODI values at 1 day, 1 month, 6 months after operation, and at the last follow-up, compared to those preoperatively ( P<0.05), while no statistically significant differences were found in VAS scores or ODI values at any postoperative timepoints ( P>0.05). According to the MacNab criteria, the O-arm-assisted group had a 100% (25/25) excellent-good rate, compared to 74% (17/23) in the C-arm-guided group ( P<0.05). The complication rate was 4% (1/25) in the O-arm-assisted group, significantly lower than 35% (8/23) in the C-arm-guided group ( P<0.05). Conclusion:O-arm navigation-assisted PVP for postoperative recurrent vertebral fractures following Kümmell′s disease offers advantages in precise cement delivery with sufficient dispersion, enhanced pain relief, functional recovery, improved quality of life, and reduced complication rates when compared to C-arm navigation-assisted PVP.


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