Effects of wearable low-level light therapy device in community patients with knee osteoarthritis
10.3760/cma.j.cn115682-20220525-02506
- VernacularTitle:可穿戴低能量激光治疗设备在社区膝关节炎患者中的应用效果
- Author:
Hongbo CHEN
1
;
Mengqi WANG
;
Junhui WU
;
Han LU
;
Shaomei SHANG
Author Information
1. 北京大学公共卫生学院，北京 100191
- Keywords:
Osteoarthritis;
Pain;
Low-level light therapy;
Community;
Wearable electronic devices
- From:
Chinese Journal of Modern Nursing
2023;29(9):1198-1203
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the effect of the wearable low-level light therapy (LLLT) device on joint pain and knee function in community patients with knee osteoarthritis.Methods:From September 2021 to February 2022, the convenience sampling was used to select 57 middle-aged and elderly patients with knee osteoarthritis who met the inclusion criteria from 8 communities in Shijiazhuang as the study subject. The patients were randomly divided into intervention group ( n=27) and placebo group ( n=30) based on the community. The intervention group used wearable LLLT device to treat bilateral knee joints, while the placebo group wore the same phototherapy device, with the same frequency and duration as the intervention group, but did not turn on the light source. The patients were investigated with the Graphical Knee Osteoarthritis Patient Self-assessment Questionnaire and knee function test, and the joint pain and knee function of the two groups of patients during the study period were compared. Results:A total of 45 patients with knee osteoarthritis in the community completed the study, including 21 in the intervention group and 24 in the placebo group. The results of the Graphical Knee Osteoarthritis Patient Self-assessment Questionnaire showed that the total pain score of the intervention group were lower than that of the placebo group at the third and eighth weeks, with statistically significant differences ( P<0.01). At the eighth week, the scores of knee rest pain, starting pain and joint chills in the intervention group were significantly lower than those in the placebo group, and the differences were statistically significant ( P<0.01). The score of exercise pain in the third and eighth weeks showed a lower trend than that in the placebo group (0.01< P<0.05). There was no statistical difference in knee function test results between the two groups at the beginning of intervention and at the third week ( P>0.05) . Conclusions:Wearable LLLT devices can relieve the joint pain in patients with knee osteoarthritis in the community, but no significant improvement was found in knee function. The effect of wearable LLLT devices still needs to be further verified by multi-center, large sample and long-term follow-up study.
