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  • Title: Pulsed magnetic field therapy for tibial non-union. Interim results of a double-blind trial.
    Author: Barker AT, Dixon RA, Sharrard WJ, Sutcliffe ML.
    Journal: Lancet; 1984 May 05; 1(8384):994-6. PubMed ID: 6143970.
    Abstract:
    Patients with tibial fractures which had remained un-united for at least 52 weeks were randomly allocated to either active or dummy pulsed magnetic field stimulators and treated in full leg plasters for 24 weeks with a non-weightbearing conservative regimen, as is usual with such techniques. Fractures in 5 of the 9 patients with working machines united and fractures in 5 of the 7 patients with dummy machines also united. These early results of this double-blind trial are compatible with a difference in success rate at 24 weeks on active treatment of + 33% to -61% (95% confidence limits) compared with the success rate on the dummy stimulators. The high proportion of fractures uniting in the control group suggests that conservative management of non-union is effective and this may explain much of the success attributed to pulsed magnetic field therapy.
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