To research on the clinical effect of the point injection and motor therapy to treat knee osteoarthritis (KOA) by means of contrast patient's trail so as to seek a new effective therapy

because of no better therapy yet in our country. Subjects and Methods: 50 patients with KOA (26 men and 24 women

aged 41～76 years

mean 59.6±6.2) were divided randomly into trail group 30 cases and control group 20 cases. The former was treated with Salviae Miltiorrhizae Radix point injection (Salviae Miltiorrhizae Radix injection 4 ml

injected in Yang Lingquan and Dubi of the affected leg

one time every other day×4 weeks) and motor therapy (the leg muscle power training without joint movement: 10 min/a time /a day×4 weeks; the same leg stress training: 10 min/a time /a day×4 weeks)

but the latter was done with Ultrashortwave therapy (wave type: continuous wave 100 mA

treating dose: micro heat

20 min/a time /a day×4 weeks). Then

the clinical symptoms and function activities of being before and after treatment were assessed and managed with statistics. Results: The active and pressed pain of the knee joint in the two group were relieved significantly(P<0.001)

but the function improvement of the former surpassed the latter markedly (P<0.001). Conclution: Point injection and motor therapy can not only relieve the pain caused by KOA

but also improve the function activity significantly

and is a new effective therapy for KOA.