Efficacy and complications of blocking screws fixation in the treatment of lower limb long bone fracture: a Meta-analysis

Background: The incidence of long tubular bone fracture is high, accounting for about 4% of emergency trauma, especially the proportion of long tubular bone (mainly femoral shaft and tibiofibular shaft) in the lower limb is the highest. Methods: To find controlled trials on the effectiveness and side effects of using blocking screws to fixate lengthy bone fractures in the lower leg, the computer searches eight repositories. The examination of the data was carried out utilizing RevMan 5.3 program following a thorough assessment of the overall quality of the research. Results: This investigation eventually comprised 15 papers. Based on the investigation of 15 studies, the fracture healing time was substantially shorter in the test group than that of the control group (SMD: -2.18; 95% Cl: -3.17,-1.20; P<0.001). We revealed no statistically significant differences between the fracture healing rates of comparative groups (OR:1.09; 95% Cl: 0.98,1.20; P=0.098). The operation time of the experimental group was significantly greater than that of the control group (SMD:15.81; 95% Cl: 4.28,27.34; P=0.007). When compared to the control group, the intraoperative bleeding was much less in the experimental group (SMD: -75.60; 95% Cl: -127.93,-23.27; P=0.005). Our investigation showed that the complications of the experimental group were much fewer than those of the contrasted group (OR: 0.51; 95% Cl: 0.31, 0.84; P=0.008). Conclusion: The findings of the present investigation imply that individuals with lower limb long bone fractures (LLLBF) may benefit from intramedullary nailing in conjunction with blocking screws, as evidenced by fracture healing time, fracture healing rate, operation time, intraoperative bleeding, complications, and the above conclusions need to be verified by more high-quality studies.