Abstract: ObjectiveTo observe clinical efficacy of intra-articular injection of sodium hyaluronate(SH) and betamethasone accompanied with Bulleyaconitin A or diclofenac sodium administration for severe knee osteoarthritis(KOA).Methods60 patients with severe KOA from 580 subjects with KOA were selected as observational subjects in the experiment. All patients were treated by intra-articular injection of sodium hyaluronate 2.5 ml and betamethasone administration once a week for five consecutive weeks as a therapeutic course, betamethasone only once. Bulleyaconitin A group was accompanied with Bulleyaconitin A 0.4 mg, t.i.d, p.o.; diclofenac sodium group was accompanied with diclofenac sodium 75 mg, b.i.d, p.o. According to knee joint comprehensive score table (Tegner rating systems), the function comprehensive scores for all the patients pre-treatment and post-treatment knee joints were assessed.ResultsThe function comprehensive scores improved significantly after treatment in two groups(P＜0.001). The side effects in Bulleyaconitin A group decreased significantly than in diclofenac sodium group(P＜0.01).ConclusionThe intra-articular injection of SH and betamethasone accompanied with Bulleyaconitin A administration was an effective and less side-effect therapeutic measure for the treatment of knee osteoarthritis, especially for the old patients with severe knee osteoarthritis.

Key words: knee　osteoarthritis, treatment, sodium hyaluronate, betamethasone, Bulleyaconitin A