Effect Of Lower Extremity Motility Chain Training On Lower Extremity Function In Patients With Meniscal Injury Arthroscopic Surgery

Objective: Lower limb power chain training was used to train the affected limb function of the hip,thigh,knee,lower leg and ankle of patients with meniscal injury arthroscopic surgery after arthroscopy,and observe the clinical effect of lower limb power chain training on the improvement of affected limb function in patients with knee meniscus injury arthroscopic surgery.Methods: patients who met the study’s inclusion criteria had meniscal injuries of the knee were divided into two groups according to the principle of randomization:a test group with "lower limb power chain training + conventional training" and a control group with "conventional training".Both the control group and the experimental group completed 8 weeks of functional training and were given the same conventional treatment after surgery.The VAS score,Lysholm score,knee mobility,extensor peak torque,flexor peak torque,30° position reset arc difference,and active30° position reset angle difference were compared between the two groups before surgery,2 weeks after surgery,4 weeks after surgery,and 8 weeks after surgery.Results:(1)The VAS scores of the experimental group and control group decreased at 2,4 and 8 weeks after surgery compared with the preoperative values,and the differences were significant(p<0.05),with the VAS scores of the experimental group decreasing significantly more compared with the control group.(2)There was no significant difference in the circumference of the femur of the affected limb in the experimental group and the control group before surgery,2 weeks after surgery,and 4 weeks after surgery(p>0.05);at 8 weeks after surgery,there was a significant difference between the two groups(p<0.05),which was statistically significant.Regarding the mean femur circumference of the affected limb,there was an increase in femur circumference after surgery compared with the preoperative period.(3)There was no significant difference between the experimental group and the control group in terms of Lysholm score at 2 weeks postoperatively(p>0.05),and a statistically significant difference between the experimental group and the control group at 4 weeks and 8 weeks postoperatively(p 05),both groups showed an improvement in Lysholm score compared with the preoperative period,and the improvement in the experimental group was significantly greater than that in the control group.(4)There was no significant difference in knee joint mobility between the experimental group and the control group at 2 weeks postoperatively(p>0.05),and the difference was statistically significant at 4 and 8 weeks postoperatively(p<0.05),with the experimental group showing greater improvement compared with the control group.(5)The peak moments of the knee extensor and flexor muscles increased at 2,4 and 8 weeks postoperatively in the experimental group and control group compared with the preoperative values,which was statistically significant(p<0.05).The peak moment was higher in the experimental group than in the control group.(6)The difference between the experimental group and the control group for the 30° active position angle and the 30° active position angle compared with the preoperative value at 2,4 and 8 weeks postoperatively,p<0.05,and the difference was statistically significant,and all of them decreased after the operation compared with the preoperative value,and the decrease was more obvious in the experimental group than in the control group.Conclusion: The use of lower limb power chain training can significantly improve the pain,knee range of motion,proprioception of the affected limb,muscle atrophy degree of patients with meniscal injury after arthroscopy,enhance lower limb muscle strength,and the degree of improvement is better than conventional treatment.