Objective To investigate the interaction relationship among symptoms in middle-aged patients during the recovery period of stroke and explore its correlation with rehabilitation confidence,providing a reference for the implementation of precise rehabilitation nursing.Methods A cross-sectional study was conducted,and 365 middle-aged patients in the recovery period of stroke who were hospitalized in 4 tertiary general hospitals in Wuhan from April 20 to August 31,2024 were conveniently selected as the subjects of the investigation.Data were collected using the General Information Questionnaire,Stroke Symptom Experience Scale,and Confidence after Stroke Measure Questionnaire.Symptom network analysis was conducted using R software,and a network structure model of symptoms-rehabilitation confidence was constructed;meanwhile,the stability of the network structure was evaluated.Results Finally,350 middle-aged stroke patients in the recovery period were included.The most common symptom was"limb weakness"(81.1％).Symptom network analysis showed that"limited limb movement"was the core symptom(rs=1.118).The symptoms strongly associated with recovery confidence were"limited physical movement","annoyance at not being able to do what you want to do"and"slow reaction times".Stability tests suggest that the model results are all good.Conclusion Symptoms of middle-aged patients in the recovery period after stroke are interrelated,and the mechanisms by which different symptoms affect rehabilitation confidence are also different.It is recommended that healthcare professionals prioritize interventions based on core symptoms and inter-symptom relationships in order to accurately enhance patient outcomes and improve recovery outcomes.

Objective:To analyze the patterns of change of brain function among civil pilots in prospective memory tasks by using task-state functional magnetic resonance imaging (fMRI) and a cue-based repetitive search task.Methods:A total of 85 subjects were enrolled, including 47 civil pilots (pilot group) and 38 ordinary workers (control group). The task-state fMRI data during the execution of the prospective memory task was analyzed using a general linear model to find out about the activation patterns of brain functions in the 2 groups in the 3 phases of encoding, maintenance, and retrieval of the prospective memory task. The differences in activation patterns between the 2 groups and correlations between regions of interest and the rate of accuracy, reaction time and flying hours were analyzed.Results:The repeated measurement analysis of variance showed that there were no interactions of reaction time or of the rate of accuracy between the task and grouping ( P>0.05), and that the difference in the main effect of grouping was significant ( F=5.67, 15.46, P=0.020, <0.001). The difference in the main effect of grouping on the rate of accuracy was significant ( F=5.42, P=0.022), and the rate of accuracy in the pilot group was higher than in the control group ( P=0.048). In the phase of encoding, the activation in the bilateral cerebellum, bilateral superior frontal gyrus, bilateral fusiform gyrus, and temporal lobe regions decreased in the pilot group compared with the control group ( t=2.68-4.13, all P<0.05), while the activation in the fusiform gyrus and the right parietal superior gyrus increased, and the differences were statistically significant ( t=3.28, 3.35, 3.02, P=0.038, 0.024, 0.042). During the phase of maintenance, the pilot group showed significantly reduced activation in the bilateral cerebellum, bilateral medial superior frontal gyrus, bilateral middle occipital gyri, and the right middle temporal gyrus compared with the control group ( t=2.24-3.36, P<0.05 or 0.01). In the retrieval phase, activation in the right peri-calcarine cortex, bilateral caudate nuclei, and bilateral precentral and postcentral gyri was enhanced in the pilot group compared with the control group ( t=2.57-3.35, all P<0.05), especially in the right middle frontal gyrus ( t=3.12, P=0.007). In the encoding phase, activation was increased in the left fusiform gyrus and right parietal superior gyrus of the pilot group, which was positively correlated with flying hours in the last 3 months ( r=0.347, 0.418, P=0.020, 0.005). Conclusions:Due to long-term flights, the way in which such regions as the frontal lobe, cerebellum, and default mode network are activated in civil pilots is likely to undergo some changes during prospective memory activities, which is why they have higher processing efficiency when performing prospective memory tasks.

Objective:To compare the efficacy of Union Plate combined with robotic placement of infra-acetabular and posterior column screws and common reconstruction plate combined with freehand placement of infra-acetabular and posterior column screws in the treatment of complex acetabular fractures.Methods:The data of 42 patients with complex acetabular fractures treated in Union Hospital, Tongji Medical College, Huazhong University of Science and Technology from June 2020 to June 2023 were retrospectively analyzed. Among them, 22 patients were treated with Union Plate combined with robotic placement of posterior column screws and infra-acetabular screws (Union Plate robot group). 20 cases were treated with common reconstruction plate combined with posterior column screw and infra-acetabular screw fixation by hand (reconstruction plate freehand group). The Union Plate robot group included 16 males and 6 females, aged 43.7±11.6 years (range, 24-67 years). Letournel-Judet classification: 14 cases of double-column fractures, 5 cases of anterior column with posterior semi-transverse fractures, 3 cases of "T" -shaped fractures. There were 15 males and 5 females in the reconstruction plate freehand group, aged 42.9±12.0 years (range, 22-66 years). Letournel-Judet classification: 15 cases of double-column fractures, 3 cases of anterior column with posterior semi-transverse fractures, 2 cases of "T" -shaped fractures. The operative time, intraoperative blood loss, intraoperative fluoroscopy times, frame screw placement time, fracture healing time, perfect frame screw placement rate (grade 0 rate) assessed according to the Lonstein criteria, reduction quality assessed according to the Matta criteria, the modified Merle d'Aubign-Postel score and postoperative complications were compared between the two groups.Results:All 42 patients were followed up for 10 to 30 months, with an average of 13 months. The fracture healing time was 3.4±0.4 months in the Union Plate robot group and 3.6±0.4 months in the reconstruction plate freehand group, with no statistical significance ( t=2.179, P=0.035). The operative time and intraoperative blood loss of the Union Plate robot group were 138.3±30.7 min and 735.7±159.8 ml, respectively, which were lower than 163.9±48.7 min and 843.5±181.1 ml in the reconstruction plate freehand group. The differences were statistically significant ( P<0.05). The time and intraoperative fluoroscopy times of the Union Plate robot group were 19.9±3.2 min and 17.1±4.9 times, respectively, which were less than 42.5±6.7 min and 45.4±4.9 times of the reconstruction plate freehand group, and the differences were statistically significant ( P<0.05). According to the Lonstein evaluation, there were 42 cases of class 0 and 2 cases of class I in the Union Plate robot group, and the perfect frame screw placement rate was 96%(42/44). There were 30 cases of grade 0, 8 cases of grade I and 2 cases of grade II in the reconstruction plate freehand group, and the perfect frame screw placement rate was 75%(30/40). There was significant difference between the two groups (χ 2=7.426, P=0.024). According to the Matta criteria, 15 cases of Union Plate robot group were excellent, 4 cases were good, and 3 cases were poor, with an excellent and good rate of 86%(19/22). In the reconstruction plate free hand group, 13 cases were excellent, 4 cases were good, and 3 cases were poor, with an excellent and good rate of 85%(17/20). There was no significant difference between the two groups (χ 2=0.048, P=0.976). At the last follow-up visit, the modified Merle d'Aubign-Postel score of the Union Plate robot group was 16.9±1.7 points and that of the reconstruction plate freehand group was 16.5±2.2 points, with no statistical significance ( t=0.593, P=0.557). In the Union Plate robot group, wound fat liquefaction and lateral femoral cutaneous nerve injury occurred in 1 case, the complication rate was 9%(2/22). There were 4 cases of fat liquefaction, 1 case of lateral femoral cutaneous nerve injury, and 1 case of traumatic hip arthritis in the reconstruction plate freehand group. The complication rate was 30%(6/20), and the difference in complication rate was not statistically significant (χ 2=1.769, P=0.183). Conclusions:The clinical efficacy of Union Plate combined with robotic placement of posterior column screws and infra-acetabular screws in the treatment of complex acetabular fractures is comparable to that of reconstruction plate combined with freehand placement of posterior column screws and infra-acetabular screws. However, the use of Union Plate combined with robotic placement of frame screws can shorten the operative time and the time of frame screw placement. The amount of intraoperative blood loss and intraoperative fluoroscopy times were reduced, and the accuracy of frame screw placement was higher.

Objective:To compare the efficacy of Union Plate combined with robotic placement of infra-acetabular and posterior column screws and common reconstruction plate combined with freehand placement of infra-acetabular and posterior column screws in the treatment of complex acetabular fractures.Methods:The data of 42 patients with complex acetabular fractures treated in Union Hospital, Tongji Medical College, Huazhong University of Science and Technology from June 2020 to June 2023 were retrospectively analyzed. Among them, 22 patients were treated with Union Plate combined with robotic placement of posterior column screws and infra-acetabular screws (Union Plate robot group). 20 cases were treated with common reconstruction plate combined with posterior column screw and infra-acetabular screw fixation by hand (reconstruction plate freehand group). The Union Plate robot group included 16 males and 6 females, aged 43.7±11.6 years (range, 24-67 years). Letournel-Judet classification: 14 cases of double-column fractures, 5 cases of anterior column with posterior semi-transverse fractures, 3 cases of "T" -shaped fractures. There were 15 males and 5 females in the reconstruction plate freehand group, aged 42.9±12.0 years (range, 22-66 years). Letournel-Judet classification: 15 cases of double-column fractures, 3 cases of anterior column with posterior semi-transverse fractures, 2 cases of "T" -shaped fractures. The operative time, intraoperative blood loss, intraoperative fluoroscopy times, frame screw placement time, fracture healing time, perfect frame screw placement rate (grade 0 rate) assessed according to the Lonstein criteria, reduction quality assessed according to the Matta criteria, the modified Merle d'Aubign-Postel score and postoperative complications were compared between the two groups.Results:All 42 patients were followed up for 10 to 30 months, with an average of 13 months. The fracture healing time was 3.4±0.4 months in the Union Plate robot group and 3.6±0.4 months in the reconstruction plate freehand group, with no statistical significance ( t=2.179, P=0.035). The operative time and intraoperative blood loss of the Union Plate robot group were 138.3±30.7 min and 735.7±159.8 ml, respectively, which were lower than 163.9±48.7 min and 843.5±181.1 ml in the reconstruction plate freehand group. The differences were statistically significant ( P<0.05). The time and intraoperative fluoroscopy times of the Union Plate robot group were 19.9±3.2 min and 17.1±4.9 times, respectively, which were less than 42.5±6.7 min and 45.4±4.9 times of the reconstruction plate freehand group, and the differences were statistically significant ( P<0.05). According to the Lonstein evaluation, there were 42 cases of class 0 and 2 cases of class I in the Union Plate robot group, and the perfect frame screw placement rate was 96%(42/44). There were 30 cases of grade 0, 8 cases of grade I and 2 cases of grade II in the reconstruction plate freehand group, and the perfect frame screw placement rate was 75%(30/40). There was significant difference between the two groups (χ 2=7.426, P=0.024). According to the Matta criteria, 15 cases of Union Plate robot group were excellent, 4 cases were good, and 3 cases were poor, with an excellent and good rate of 86%(19/22). In the reconstruction plate free hand group, 13 cases were excellent, 4 cases were good, and 3 cases were poor, with an excellent and good rate of 85%(17/20). There was no significant difference between the two groups (χ 2=0.048, P=0.976). At the last follow-up visit, the modified Merle d'Aubign-Postel score of the Union Plate robot group was 16.9±1.7 points and that of the reconstruction plate freehand group was 16.5±2.2 points, with no statistical significance ( t=0.593, P=0.557). In the Union Plate robot group, wound fat liquefaction and lateral femoral cutaneous nerve injury occurred in 1 case, the complication rate was 9%(2/22). There were 4 cases of fat liquefaction, 1 case of lateral femoral cutaneous nerve injury, and 1 case of traumatic hip arthritis in the reconstruction plate freehand group. The complication rate was 30%(6/20), and the difference in complication rate was not statistically significant (χ 2=1.769, P=0.183). Conclusions:The clinical efficacy of Union Plate combined with robotic placement of posterior column screws and infra-acetabular screws in the treatment of complex acetabular fractures is comparable to that of reconstruction plate combined with freehand placement of posterior column screws and infra-acetabular screws. However, the use of Union Plate combined with robotic placement of frame screws can shorten the operative time and the time of frame screw placement. The amount of intraoperative blood loss and intraoperative fluoroscopy times were reduced, and the accuracy of frame screw placement was higher.

Objective To investigate the interaction relationship among symptoms in middle-aged patients during the recovery period of stroke and explore its correlation with rehabilitation confidence,providing a reference for the implementation of precise rehabilitation nursing.Methods A cross-sectional study was conducted,and 365 middle-aged patients in the recovery period of stroke who were hospitalized in 4 tertiary general hospitals in Wuhan from April 20 to August 31,2024 were conveniently selected as the subjects of the investigation.Data were collected using the General Information Questionnaire,Stroke Symptom Experience Scale,and Confidence after Stroke Measure Questionnaire.Symptom network analysis was conducted using R software,and a network structure model of symptoms-rehabilitation confidence was constructed;meanwhile,the stability of the network structure was evaluated.Results Finally,350 middle-aged stroke patients in the recovery period were included.The most common symptom was"limb weakness"(81.1％).Symptom network analysis showed that"limited limb movement"was the core symptom(rs=1.118).The symptoms strongly associated with recovery confidence were"limited physical movement","annoyance at not being able to do what you want to do"and"slow reaction times".Stability tests suggest that the model results are all good.Conclusion Symptoms of middle-aged patients in the recovery period after stroke are interrelated,and the mechanisms by which different symptoms affect rehabilitation confidence are also different.It is recommended that healthcare professionals prioritize interventions based on core symptoms and inter-symptom relationships in order to accurately enhance patient outcomes and improve recovery outcomes.

Objective:To analyze the patterns of change of brain function among civil pilots in prospective memory tasks by using task-state functional magnetic resonance imaging (fMRI) and a cue-based repetitive search task.Methods:A total of 85 subjects were enrolled, including 47 civil pilots (pilot group) and 38 ordinary workers (control group). The task-state fMRI data during the execution of the prospective memory task was analyzed using a general linear model to find out about the activation patterns of brain functions in the 2 groups in the 3 phases of encoding, maintenance, and retrieval of the prospective memory task. The differences in activation patterns between the 2 groups and correlations between regions of interest and the rate of accuracy, reaction time and flying hours were analyzed.Results:The repeated measurement analysis of variance showed that there were no interactions of reaction time or of the rate of accuracy between the task and grouping ( P>0.05), and that the difference in the main effect of grouping was significant ( F=5.67, 15.46, P=0.020, <0.001). The difference in the main effect of grouping on the rate of accuracy was significant ( F=5.42, P=0.022), and the rate of accuracy in the pilot group was higher than in the control group ( P=0.048). In the phase of encoding, the activation in the bilateral cerebellum, bilateral superior frontal gyrus, bilateral fusiform gyrus, and temporal lobe regions decreased in the pilot group compared with the control group ( t=2.68-4.13, all P<0.05), while the activation in the fusiform gyrus and the right parietal superior gyrus increased, and the differences were statistically significant ( t=3.28, 3.35, 3.02, P=0.038, 0.024, 0.042). During the phase of maintenance, the pilot group showed significantly reduced activation in the bilateral cerebellum, bilateral medial superior frontal gyrus, bilateral middle occipital gyri, and the right middle temporal gyrus compared with the control group ( t=2.24-3.36, P<0.05 or 0.01). In the retrieval phase, activation in the right peri-calcarine cortex, bilateral caudate nuclei, and bilateral precentral and postcentral gyri was enhanced in the pilot group compared with the control group ( t=2.57-3.35, all P<0.05), especially in the right middle frontal gyrus ( t=3.12, P=0.007). In the encoding phase, activation was increased in the left fusiform gyrus and right parietal superior gyrus of the pilot group, which was positively correlated with flying hours in the last 3 months ( r=0.347, 0.418, P=0.020, 0.005). Conclusions:Due to long-term flights, the way in which such regions as the frontal lobe, cerebellum, and default mode network are activated in civil pilots is likely to undergo some changes during prospective memory activities, which is why they have higher processing efficiency when performing prospective memory tasks.

[Objective]To explore the distribution patterns and correlations of pet-related cat/dog dander allergens and mold allergens in patients with allergic diseases,providing evidence for individualized diagnosis,treatment,and prevention strategies.[Methods]A retrospective analysis was conducted on 798 patients diagnosed with allergic diseases at the Third Affiliated Hospital of Sun Yat-sen University between April 2021 and October 2023.All patients underwent UniCAP platform testing for specific immunoglobulin E(sIgE)levels against cat dander,dog dander,and mold mix(mx1/mx2),alongside total IgE(tIgE)quantification.Descriptive statistics,Mann-Whitney U tests,and chi-square analyses were employed to evaluate allergen distribution and interrelationships.[Results]Among the 798 patients(395 males,403 females,ratio 1:1.02),their ages ranged from 0.67 to 69 years(median 14 years,IQR 6-29).A total of 63.2％(504/798)had a single allergic disease,with allergic rhinitis(AR,49.2％)being the most common.The remaining 36.8％(294/798)had≥2 allergic diseases,with AR combined with atopic dermatitis(AD,10.7％)as the predominant comorbidity.The positivity rate for cat/dog dander sIgE was 24.1％(192/798),with a significantly higher prevalence in females(30.8％)than males(16.7％,P<0.05).Cat dander sensitization increased with age in patients under 18 years.Among positive cases,cat dander sIgE level 2 was most frequent(25.9％),while dog dander sIgE level 1 predominated(55％).Patients with cat dander sIgE levels 4-6 had significantly higher tIgE than those with levels 1-3(P<0.05).The positivity rate for mold mix(mx1/mx2)sIgE was 7.4％(59/798),with mx2 as the primary sensitizer and level 2 being the most common.In mx2-positive patients,the cat/dog dander sIgE positivity rate(44.8％)was significantly higher than that in mx2-negative patients(17.9％,P<0.05),and tIgE levels were also higher(P<0.05).[Conclusion]Cat dander sensitization increases with age in children.Cat/dog dander and mold allergens are closely linked to AR and AR combined with AD.Synergistic correlations exist between cat/dog dander sIgE and mold mx2 sIgE.Combined detection of these allergens is critical for precision diagnosis and management of pet-related allergic diseases.

Objective:To compare the efficacy of acetabular magic hook plates versus quadrilateral area combined plates in treating complicated acetabular fractures.Methods:A retrospective analysis was conducted on 44 cases of complicated acetabular fractures treated at the Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, from June 2017 to August 2022. Among these cases, 21 were treated with magic hook plate internal fixation (hook plate group) and 23 with quadrilateral area combined plate internal fixation (combined plate group). In the hook plate group, there were 15 males and 6 females, with an average age of 43.1±11.8 years. According to the Letournel-Judet classification, there were 13 double-column fractures, 5 anterior column with posterior semi-transverse fractures, and 3 T-type fractures. Additionally, 8 cases were classified as B2.2 type, 5 as C1 type, 4 as C2 type, and 4 as C3 type; 15 cases were APQ1 type and 6 were APQ2 type. In the combined plate group, there were 16 males and 7 females, with an average age of 41.7±12.8 years. This group included 15 double-column fractures, 6 anterior column with posterior semi-transverse fractures, and 2 T-type fractures. Additionally, there were 8 cases of B2.2 type, 6 cases of C1 type, 4 cases of C2 type, and 5 cases of C3 type; 15 cases were APQ1 type and 8 were APQ2 type. Comparative analyses included operative time, intraoperative blood loss, fracture healing time, Matta standard assessment, modified Merle d'Aubign-Postel scores, and postoperative complications.Results:All 44 patients were followed up for 10 to 24 months, with an average follow-up of 14 months. The acetabular fractures healed in all cases. The healing time was 3.6±0.9 months for the hook plate group and 3.7±0.9 months for the combined plate group, with no significant difference between the groups ( t=0.549, P=0.586). The hook plate group had an operative time of 138.3±30.7 minutes and intraoperative blood loss of 735.7±159.8 ml, compared to 163.9±48.7 minutes and 843.5±181.1 ml, respectively, in the combined plate group, both of which were statistically significant ( P<0.05). The reduction quality was excellent in 13 cases, good in 5 cases, and poor in 3 cases in the hook plate group, with an excellent and good rate of 86% (18/21). In the combined plate group, the reduction quality was excellent in 13 cases, good in 6 cases, and poor in 4 cases, with an excellent and good rate of 83% (19/23), showing no significant difference between the groups (χ 2=0.143, P=0.931). The modified Merle d'Aubign Postel scores of the hook plate group were 13.8±2.2 points, 15.3±2.5 points and 16.7±1.8 points at 3 months, 6 months and the last follow-up, respectively, and the combined plate group were 13.1±1.9 points, 14.6±2.1 points and 16.4±2.0 points, respectively ( P>0.05). However, both groups showed statistically significant improvements in hip function over time ( F=9.658, P<0.001; F=16.195, P<0.001). Wound fat liquefaction and lateral femoral cutaneous nerve injury occurred in one case each in both groups. In the combined plate group, there were 3 cases of incision fat liquefaction, 2 cases of lateral femoral cutaneous nerve injury, and 1 case of traumatic hip arthritis. No other complications such as incision infection, iliac vascular injury, or loss of internal fixation were observed in either group. Conclusion:Both magic hook plate fixation and quadrilateral area combined plate fixation are safe and effective for treating complex acetabular fractures. However, magic hook plate fixation offers advantages in reducing operative time and intraoperative blood loss, thereby simplifying and enhancing the safety of the procedure.

Background::With an increasing proportion of multiparas, proper interpregnancy intervals (IPIs) are urgently needed. However, the association between IPIs and adverse perinatal outcomes has always been debated. This study aimed to explore the association between IPIs and adverse outcomes in different fertility policy periods and for different previous gestational ages.Methods::We used individual data from China’s National Maternal Near Miss Surveillance System between 2014 and 2019. Multivariable Poisson models with restricted cubic splines were used. Each adverse outcome was analyzed separately in the overall model and stratified models. The stratified models included different categories of fertility policy periods (2014–2015, 2016–2017, and 2018–2019) and infant gestational age in previous pregnancy (<28 weeks, 28–36 weeks, and ≥37 weeks).Results::There were 781,731 pregnancies enrolled in this study. A short IPI (≤6 months) was associated with an increased risk of preterm birth (OR [95% CI]: 1.63 [1.55, 1.71] for vaginal delivery [VD] and 1.10 [1.03, 1.19] for cesarean section [CS]), low Apgar scores and small for gestational age (SGA), and a decreased risk of diabetes mellitus in pregnancy, preeclampsia or eclampsia, and gestational hypertension. A long IPI (≥60 months) was associated with an increased risk of preterm birth (OR [95% CI]: 1.18 [1.11, 1.26] for VD and 1.39 [1.32, 1.47] for CS), placenta previa, postpartum hemorrhage, diabetes mellitus in pregnancy, preeclampsia or eclampsia, and gestational hypertension. Fertility policy changes had little effect on the association of IPIs and adverse maternal and neonatal outcomes. The estimated risk of preterm birth, low Apgar scores, SGA, diabetes mellitus in pregnancy, and gestational hypertension was more profound among women with previous term births than among those with preterm births or pregnancy loss.Conclusion::For pregnant women with shorter or longer IPIs, more targeted health care measures during pregnancy should be formulated according to infant gestational age in previous pregnancy.

Objective:To investigate the efficacy and safety of the "frame and buttress" fixation in the treatment of acetabular quadrilateral fractures.Methods:A total of 26 patients with acetabular quadrilateral fractures treated with the "Frame and buttress" fixation strategy (reconstructing frame and providing buttress for quadrilateral surface) from January 2017 to January 2021 were retrospectively analyzed in the Department of Orthopaedics, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, including 17 males and 9 females, aged 47.7±16.5 years, (range, 25-71 years). There were 13 cases from car accidents, 8 cases from falls, and 5 cases from heavy objects. Quadrilateral fractures were classified according to whether the anterior column (A) and posterior column (P) of the acetabulum were fractured and whether the quadrilateral plate (Q) was partially (1) or completely (2) separated from the two columns. Among these cases, there were 5 cases of type AQ1, 1 case of type AQ2, 1 case of type PQ2, 14 cases of type APQ1 and 5 cases of type APQ2. The "frame and buttress" fixation strategy was used to perform open reduction and internal fixation. The Matta scale was used to assess the quality of resurfacing based on pelvic radiographs, and the Matta modified Merle d'Aubigne and Postel scores were referenced to evaluate hip function.Results:All the 26 patients successfully completed the operation, the operation time was 88.1±57.8 min (range, 90-320 min), the intraoperative bleeding was 753.8±309.5 ml (range, 400-1 400 ml). There were 14 cases of anatomical reduction, 8 cases of satisfactory reduction and 4 cases of unsatisfactory reduction with an excellent rate of 85% (22/26), the excellence rate was 85% (22/26). All patients were followed up for 16.3±4.3 months (range, 12-24 months). The hip function score after operation was higher than that before operation, and the difference was statistically significant ( F=19.80, P<0.001). The hip function score was 13.1±2.2 at 3 months postoperatively, increased to 15.9±2.3 at 6 months postoperatively, and increased to 16.6±1.9 at the last follow-up, with a statistically significant difference ( P<0.001). After operation, 5 patients showed symptoms of lateral femoral cutaneous nerve injury such as hypoesthesia and numbness in the anterolateral thigh. During the follow-up, there was no ectopic ossification, traumatic arthritis, necrosis of the femoral head and central dislocation of the femoral head. Conclusion:The "frame and buttress" fixation strategy based on quadrilateral fracture typing for acetabular quadrilateral fracture open reduction internal fixation provides strong fixation, satisfactory reduction quality, and facilitates joint function recovery after operation.