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jnl:henry2008 [2021/05/15 08:41]
admin
jnl:henry2008 [2021/05/15 08:50] (current)
admin [Commentary]
Line 14: Line 14:
   * model of secondary intention healing in rats   * model of secondary intention healing in rats
     * how was size standardized?     * how was size standardized?
-  * Magnet applied 24x7+  * Protocol 
 +    * Magnet applied 24x7 in this study vs pulsed 
 +    * strength 23 gauss weak vs 400 etc ...
   * blinding?   * blinding?
   * Evidence for bone by Fukuda and Yasuda   * Evidence for bone by Fukuda and Yasuda
Line 20: Line 22:
   * Mechanisms   * Mechanisms
     * vascular     * vascular
 +  * Magnetic vs electromagnetic?
 +  * Other studies
 +    * Leaper: 400 gauss - no effect on wound healing, collagen content or tensile strength
 +    * Patino: 200 gauss - faster healing in wounds with intermittent EMF fields
 +    * Callaghan: similar to Patino
 +    * Strauch: accelerated healing and higher tensile strength in rat wounds exposed to PEMF
 +  * Tendons even less clear
 +
 +> The data regarding magnet therapy for tendon healing are even more ambiguous. Greenbough applied pulsed electromagnetic fields to repaired flexor tendons in rabbits and found no benefit in terms of tensile strength or adhesion formation,37 whereas Robotti et al showed that pulsed electromagnetic fields decrease tensile strength and increase adhesions after tendon repair in chickens.38 These studies are in stark contrast to that of Strauch et al who recently demonstrated a 69% increase in tensile strength in repaired Achilles tendons in rats. They emphasized the importance of using a pulsed magnetic field of low amplitude (0.1 gauss) designed to maximize the effect on calcium ions, which, in theory, enhances the calcium-dependent activation of growth factors.39
  
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jnl/henry2008.1621068118.txt.gz · Last modified: 2021/05/15 08:41 by admin