This study examined the effects of pulsed electromagnetic fields (50 Hz, 50 G) in treating aseptic loosening of total hip prostheses. PEMF therapy consisted of 20 minutes per day for 6 days per week over a total of 20 such sessions and was begun, on average, a year and a half following the start of loosening. Results showed PEMF to have some beneficial effects with respect to loosened hip arthroplasties, although it was not effective in patients suffering severe pain due to extreme loosening.

K. Konrad, “Therapy with Pulsed Electromagnetic Fields in Aseptic Loosening of Total Hip Protheses: A Prospective Study,” Clinical Rheumatology, 15(4), 1996, p. 325-328.