Hall J, Clarke A K, Elvins D M, Ring E F
Rehabilitation Laboratory, Royal National Hospital for Rheumatic Diseases, Bath.
Br J Rheumatol. 1994 Feb;33(2):142-7. doi: 10.1093/rheumatology/33.2.142.
Low level laser therapy (LLLT) is a relatively new and increasingly popular form of electrotherapy. It is used by physiotherapists in the treatment of a wide variety of conditions including RA despite the lack of scientific evidence to support its efficacy. A randomized, double-blind and placebo-controlled study was conducted to evaluate the efficacy of LLLT. The patient sample consisted of chronic RA patients with active finger joint synovitis. Forty RA patients with involvement of some or all of MCP or PIP joints were recruited. Following random allocation they received either active or placebo laser three times a week for 4 weeks. Measurements were taken prior to entry, after the treatment, 1 month and 3 months at follow-up. The groups were well matched in terms of age, sex, disease duration and severity. Few significant differences were noted in grip strength, duration of morning stiffness, joint tenderness, temperature of inflamed joints, range of movement or pain either within or between groups. Using these irradiation parameters the efficacy of LLLT is ineffective.
低强度激光疗法（LLLT）是一种相对较新且越来越受欢迎的电疗法形式。尽管缺乏科学证据支持其疗效，但物理治疗师仍将其用于治疗包括类风湿性关节炎（RA）在内的多种病症。进行了一项随机、双盲和安慰剂对照研究以评估低强度激光疗法的疗效。患者样本包括患有活动性手指关节滑膜炎的慢性类风湿性关节炎患者。招募了40名累及部分或全部掌指关节（MCP）或近端指间关节（PIP）的类风湿性关节炎患者。随机分配后，他们每周接受三次活性或安慰剂激光治疗，持续4周。在入组前、治疗后、随访1个月和3个月时进行测量。两组在年龄、性别、病程和严重程度方面匹配良好。在握力、晨僵持续时间、关节压痛、发炎关节温度、活动范围或疼痛方面，组内或组间均未发现显著差异。使用这些照射参数，低强度激光疗法无效。
