All patients were treated with laser, while the treatment group were added with sodium hyaluronate injection in articular cavity. Once a week, the course of both group were 5 weeks.
全部病例采用激光治疗，治疗在此基础上加玻璃酸钠关节腔内注射，每周1次，5周为1疗程。
Objective: To confirm clinical therapeutic effect in treatment of osteoarthritis in knee joint by laser treatment of trigger points associated with sodium hyaluronate injection in articular cavity.
目的：明确膝关节腔注射玻璃酸钠与痛点激光照射结合治疗膝关节骨关节炎的临床疗效。
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