ABSTRACT
Objective:To investigate the efficacy of absorbable interface screw combined with bone tunnel on knee ligament fractures.Methods:One hundred and twenty patients with fractures of anterior cruciate ligament (ACL) admitted to Shanxian Haijiya Hospital from January 2018 to April 2020 were selected and according to the random number table method, they were divided into the absorbable group and the metal group, with 60 cases in each group. They adopted absorbable interface screw combined with bone tunnel and metal screw combined with bone tunnel respectively. The clinical efficacy, Lysholm knee function score, bone broadening degree and the incidence of postoperative complications of the two groups were compared.Results:The excellent and good rate in the absorbable group was higher than that in the metal group: 93.33%(56/60) vs. 80.00%(48/60), χ2 = 4.62, P<0.05. After operation for 3 and 6 months, the Lysholm knee fuction scores in the absorbable group were higher than those in the metal group: (78.42 ± 5.26) scores vs. (70.41 ± 4.28) scores, (92.57 ± 6.34) scores vs. (88.26 ± 6.30) scores, the differences were statistically significant ( P<0.05). After operation for 6 months, the broadening degree of the bone tunnels of femur anteroposterior projection, femur lateral position, leg anteroposterior projection, leg lateral position in the absorbable group were lower than those in the metal group: (2.34 ± 0.55) mm vs. (3.18 ± 0.71) mm, (2.31 ± 0.42) mm vs. (3.20 ± 0.61) mm, (2.80 ± 0.77) mm vs. (3.23 ± 0.72) mm, (2.82 ± 0.51) mm vs. (3.22 ± 0.62) mm, the differences were statistically significant ( P<0.05). The incidence of postoperative complications in the absorbable group was lower than that in the metal group: 5.00%(3/60) vs. 16.67%(10/60), χ2 = 4.23, P<0.05. Conclusions:Absorbable interface screw combined with bone tunnel for ACL fractures can effectively improve clinical efficacy, promote knee joint rehabilitation, reduce postoperative bone canal width, and reduce the incidence of postoperative complications.