聚左旋乳酸可吸收内固定系统在颌骨骨折中应用

目的:观察聚左旋乳酸可吸收内固定系统在颌骨骨折中的应用效果。方法:采用前瞻性研究，选取2020年1月至2021年7月于粤北人民医院接受治疗的120例颌骨骨折患者，采用随机数字表法分为两组，各60例。对照组男23例、女37例，年龄（30.25±2.37）岁，给予微型钛板及螺钉固定；观察组男24岁、女36例，年龄（30.4...

Application effect of poly-L-lactic acid absorbable internal fixation system in jaw fractures

Objective　To observe the application effect of poly-L-lactic acid absorbableinternal fixation system in jaw fractures. Methods　A prospective study was used to select 120 patients with jaw fractureswho received treatment in Yuebei People's Hospital from January 2020 to July2021. They were divided into an observation group and a control group by therandom number table method. The control group included 23 males and 37 females,aged (30.25±2.37) years; the observation group included 24 males and 36females, aged (30.49±2.28) years. The control group was given micro titaniumplate and screw fixation, while the observation group was given poly-L-lacticacid absorbable internal fixation system treatment. The occlusal forces,chewing efficiencies, and fixation forces before and after treatment, fracturehealing time, operation time, incidence of complications, and treatment effectwere compared between the two groups. Independent sample t test was used for inter-group comparison of the measurement data,paired t test was used forintra-group comparison of the measurement data, and χ² test was used for the count data. Results　After treatment, the occlusal force, chewing efficiency, and fixationforce in the observation group were (160.92±4.18) lbs, (0.75±0.22), and(4.58±0.32) N, respectively, which were higher than those in the control group[(100.28±4.46) lbs, (0.61±0.17), and (3.58±0.29) N], with statisticallysignificant differences (all P<0.05).There was no statistically significant difference in the operation time betweenthe two groups (P>0.05); thefracture healing time of the observation group was (1.28±0.27) months, whichwas shorter than that of the control group [(3.20±0.46) months], with astatistically significant difference (P<0.05).The incidence of complications in the observation group was 10.00% (6/60),which was lower than that in the control group [31.67% (19/60)], with astatistically significant difference (P<0.05).The effective rate of treatment in the observation group was 93.33% (56/60),which was higher than that in the control group [70.00% (42/60)], with astatistically significant difference (P<0.05). Conclusion　The poly-L-lacticacid absorbable internal fixation system can significantly improve the occlusalrelationship in patients with jaw fractures, significantly reduce the fracturehealing time, and avoid the complications caused by metal residues, with highstability of fixation and reduction and good effect.