- K. Konrad et al.: "Therapy with PEMF in Aseptic Loosening of Total Hip Prostheses: A Prospective Study," Budapest, Hungary, Clin. Rheumatol., July 1996. - PEMF was used on 24 patients with a loosened hip prosthesis. Follow-up examinations were performed after six months and after one year, showing that the patients treated with PEMF had experienced pain relief and a definite improvement in hip movements. The isotope scan and ultrasonic tests confirmed these positive results.
- W.F. Kennedy et al.: "Use of PEMF in Treatment of Loosened Hip Prostheses. A Double blind Study," Clin Orthop., January 1993 (286), pp. 198-205. - This study with 37 patients with cemented hip prostheses demonstrates that 53% of the loosened hip prostheses had fused again after six months of PEMF, whereas only 11% in the control group had a similarly positive effect.
- Studies are currently carried out at three renowned German University Clinics. The studies were initiated after extremely positive preliminary.
- G. Gualtieri et al.: "The Effect of PEMF Stimulation on Patients Treated of Hip Revisions with Trans-femoral Approach," Second world Congress for Electricity and Magnetism in Biology and Medicine, June 8-13, 1997, Bologna, Italy. - This double blind study investigated the effect of PEMF on patients with loosened hip prostheses. The results demonstrate an increase in bone density with a stabilising effect on the prostheses in all patients treated with PEMF, whereas only about half those in the control group showed an increase in bone density.
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