关键词:

经皮神经电刺激, 闭链功能性训练, 膝骨关节炎, 膝关节功能

Abstract:

Objective　To explore the effect of transcutaneous electrical nerve stimulation (TENS) combined with closed-chain functional training on pain relief and functional recovery in patients with knee osteoarthritis. Methods　A prospective, single-center, single-blind trial was conducted. The research subjects were 96 patients with knee osteoarthritis who received treatment at the Affiliated Hospital of Yan'an University from January 2022 to January 2024. They were randomly divided into two groups, with 48 cases in each group.Control group: 21 males and 27 females, with an average age of (65.11±7.63) years and a disease duration of (7.73±1.28) months.Conventional rehabilitation training and TENS therapy were adopted.Observation group: 19 males and 29 females, with an average age of (64.72±7.51) years and a disease duration of (7.81±1.32) months.Combined with closed-chain functional training on the basis of the control group.Both groups were treated for 4 weeks.Compare the levels of inflammatory factors in the knee joint fluid, the circumference of the knee joint, the thickness of the effusion, the isokinetic muscle strength of the knee flexion and extension muscle groups, the three-dimensional gait parameters, as well as the pain condition and knee joint function of the two groups of patients before and after treatment.Statistical methods employed t-test and χ² test. Results　After treatment, the knee joint circumference and the thickness of the effusion in the observation group were smaller than those in the control group [(37.15±1.05) cm vs. (38.01±1.21) cm, (37.46±4.52) mm vs. (41.68±5.84) mm], and the differences were statistically significant (t=3.719 and 3.959; both P<0.05). The levels of inflammatory factors in the knee joint fluid were all lower than those in the control group, and the average peak torque of the knee flexion and extension muscle groups, as well as the three-dimensional gait parameters, were all higher than those in the control group (all P<0.05).After treatment, the visual analogue scale (VAS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores of the observation group were lower than those of the control group [(2.60±0.71) points vs. (3.81±1.06) points, (29.94±3.69) points vs. (40.01±5.41) points], and the Lysholm knee joint score of the observation group was higher than that of the control group [(71.01±7.82) points vs. (60.24±6.31) points], and all the differences were statistically significant (t=6.571, 10.654,and 7.426, all P<0.05). Conclusion　The combination of TENS (Transcutaneous Electrical Nerve Stimulation) and closed-chain functional training is beneficial in alleviating the pain of patients with knee osteoarthritis and promoting the recovery of joint function.

Key words:

Transcutaneous electrical nerve stimulation, Closed-chain functional training, Knee osteoarthritis, Knee joint function