Hip joint implants easing
Study
Hip joint implants easing (relaxation)**
Authors, title of the study and source:
Kennedy WF, Roberts CG, Zuege RC, Dicus WT: Use of pulsed electromagnetic field in treatment of relaxed cemented hip implants. A double blind trial. Clin Orthop 1993;198-205
Number of patients: 37
Disease: Hip implants easing. Several underlying diseases were a cause for hip implants. Normal 32% of all hip replacements are loose within 10 years.
Treatment:
Daily> 8 hours (overnight), 15 Hz burst pulses. 6 months.
Improvement:
53% of the treatment group vs. 11% of the placebo group showed clinically relevant improvements.
Remarks:
After completion of the MFT of some patients one relapse showed after successfully treated. They were further recommended to have an hour of MFT daily. Apparently it was not long enough, because after 32 months there was one relapse by all patients. The conclusion is therefore:
- either MFT is used, to gain time before surgery
- the MFT is not broken up after 6 months but treatment continue. The authors continue to leave the possibility open that other MFT settings could be better (not topic of this study).
** The treatment with pulsating magnetic field seems to be superior because of double blind controlled randomized studies of the Placebo-treatment.
* The treatment with pulsating magnetic field seems to be superior because of the controlled studies of the control-treatment.
